CVE-2026-27459 (GCVE-0-2026-27459)
Vulnerability from cvelistv5 – Published: 2026-03-17 23:34 – Updated: 2026-07-20 12:04
VLAI
EPSS
VEX
Title
pyOpenSSL DTLS cookie callback buffer overflow
Summary
pyOpenSSL is a Python wrapper around the OpenSSL library. Starting in version 22.0.0 and prior to version 26.0.0, if a user provided callback to `set_cookie_generate_callback` returned a cookie value greater than 256 bytes, pyOpenSSL would overflow an OpenSSL provided buffer. Starting in version 26.0.0, cookie values that are too long are now rejected.
Severity
SSVC
Exploitation: none
Automatable: no
Technical Impact: total
CISA Coordinator (v2.0.3)
CWE
- CWE-120 - Buffer Copy without Checking Size of Input ('Classic Buffer Overflow')
Assigner
References
23 references
Impacted products
37 products
| Vendor | Product | Version | |
|---|---|---|---|
| pyca | pyopenssl |
Affected:
>= 22.0.0, < 26.0.0
|
|
| Red Hat | Red Hat Ansible Automation Platform 2.5 for RHEL 8 |
Unaffected:
0:26.0.0-1.el8ap , < *
(rpm)
cpe:/a:redhat:ansible_automation_platform:2.5::el8 |
|
| Red Hat | Red Hat Ansible Automation Platform 2.5 for RHEL 9 |
Unaffected:
0:26.0.0-1.el9ap , < *
(rpm)
cpe:/a:redhat:ansible_automation_platform:2.5::el9 |
|
| Red Hat | Red Hat Ansible Automation Platform 2.6 for RHEL 9 |
Unaffected:
0:4.7.11-2.el9ap , < *
(rpm)
cpe:/a:redhat:ansible_automation_platform:2.6::el9 |
|
| Red Hat | Red Hat Ansible Automation Platform 2.6 for RHEL 9 |
Unaffected:
0:26.0.0-1.el9ap , < *
(rpm)
cpe:/a:redhat:ansible_automation_platform:2.6::el9 |
|
| Red Hat | Red Hat Satellite 6.16 for RHEL 8 |
Unaffected:
0:24.1.0-2.el8pc , < *
(rpm)
cpe:/a:redhat:satellite:6.16::el8 cpe:/a:redhat:satellite_capsule:6.16::el8 |
|
| Red Hat | Red Hat Satellite 6.16 for RHEL 9 |
Unaffected:
0:24.1.0-2.el9pc , < *
(rpm)
cpe:/a:redhat:satellite:6.16::el9 cpe:/a:redhat:satellite_capsule:6.16::el9 |
|
| Red Hat | Red Hat Satellite 6.17 for RHEL 9 |
Unaffected:
0:25.1.0-0.3.el9pc , < *
(rpm)
cpe:/a:redhat:satellite:6.17::el9 cpe:/a:redhat:satellite_capsule:6.17::el9 |
|
| Red Hat | Red Hat Satellite 6.18 for RHEL 9 |
Unaffected:
0:26.0.0-2.el9pc , < *
(rpm)
cpe:/a:redhat:satellite:6.18::el9 cpe:/a:redhat:satellite_capsule:6.18::el9 |
|
| Red Hat | RHUI 4 for RHEL 8 |
Unaffected:
0:24.1.0-2.el8ui , < *
(rpm)
cpe:/a:redhat:rhui:4::el8 |
|
| Red Hat | Red Hat Ansible Automation Platform 2.5 |
Unaffected:
1777398315 , < *
(rpm)
cpe:/a:redhat:ansible_automation_platform:2.5::el8 |
|
| Red Hat | Red Hat Ansible Automation Platform 2.5 |
Unaffected:
1777403872 , < *
(rpm)
cpe:/a:redhat:ansible_automation_platform:2.5::el8 |
|
| Red Hat | Red Hat Ansible Automation Platform 2.6 |
Unaffected:
1777390240 , < *
(rpm)
cpe:/a:redhat:ansible_automation_platform:2.6::el9 |
|
| Red Hat | Red Hat Ansible Automation Platform 2.6 |
Unaffected:
1777296732 , < *
(rpm)
cpe:/a:redhat:ansible_automation_platform:2.6::el9 |
|
| Red Hat | Red Hat Ansible Automation Platform 2.6 |
Unaffected:
1777391447 , < *
(rpm)
cpe:/a:redhat:ansible_automation_platform:2.6::el9 |
|
| Red Hat | Red Hat Ansible Automation Platform 2.6 |
Unaffected:
1777299023 , < *
(rpm)
cpe:/a:redhat:ansible_automation_platform:2.6::el9 |
|
| Red Hat | Red Hat Ansible Automation Platform 2.6 |
Unaffected:
1777387242 , < *
(rpm)
cpe:/a:redhat:ansible_automation_platform:2.6::el9 |
|
| Red Hat | Red Hat Ansible Automation Platform 2.6 |
Unaffected:
1777390333 , < *
(rpm)
cpe:/a:redhat:ansible_automation_platform:2.6::el9 |
|
| Red Hat | Red Hat Hardened Images |
Unaffected:
26.0.0-1.1.hum1 , < *
(rpm)
cpe:/a:redhat:hummingbird:1 |
|
| Red Hat | Red Hat Quay 3.1 |
Unaffected:
1776736910 , < *
(rpm)
cpe:/a:redhat:quay:3.10::el8 |
|
| Red Hat | Red Hat Quay 3.12 |
Unaffected:
1776752646 , < *
(rpm)
cpe:/a:redhat:quay:3.12::el8 |
|
| Red Hat | Red Hat Quay 3.14 |
Unaffected:
1779689392 , < *
(rpm)
cpe:/a:redhat:quay:3.14::el8 |
|
| Red Hat | Red Hat Quay 3.15 |
Unaffected:
1780891395 , < *
(rpm)
cpe:/a:redhat:quay:3.15::el8 |
|
| Red Hat | Red Hat Quay 3.16 |
Unaffected:
1779204086 , < *
(rpm)
cpe:/a:redhat:quay:3.16::el9 |
|
| Red Hat | Red Hat Quay 3.17 |
Unaffected:
1779922205 , < *
(rpm)
cpe:/a:redhat:quay:3.17::el9 |
|
| Red Hat | Red Hat Quay 3.9 |
Unaffected:
1776782369 , < *
(rpm)
cpe:/a:redhat:quay:3.9::el8 |
|
| Red Hat | Red Hat Trusted Artifact Signer 1.4 |
Unaffected:
1775815407 , < *
(rpm)
cpe:/a:redhat:trusted_artifact_signer:1.4::el9 |
|
| Red Hat | Red Hat Ansible Automation Platform 2 |
cpe:/a:redhat:ansible_automation_platform:2 |
|
| Red Hat | Red Hat Ansible Automation Platform Ansible Core 2 |
cpe:/a:redhat:ansible_core:2 |
|
| Red Hat | Red Hat Enterprise Linux 6 |
cpe:/o:redhat:enterprise_linux:6 |
|
| Red Hat | Red Hat Enterprise Linux 7 |
cpe:/o:redhat:enterprise_linux:7 |
|
| Red Hat | Red Hat Enterprise Linux 8 |
cpe:/o:redhat:enterprise_linux:8 |
|
| Red Hat | Red Hat OpenShift AI (RHOAI) |
cpe:/a:redhat:openshift_ai |
|
| Red Hat | Red Hat OpenShift Container Platform 4 |
cpe:/a:redhat:openshift:4 |
|
| Red Hat | Red Hat OpenStack Platform 17.1 |
cpe:/a:redhat:openstack:17.1 |
|
| Red Hat | Red Hat OpenStack Platform 18.0 |
cpe:/a:redhat:openstack:18.0 |
|
| Red Hat | Red Hat Satellite 6 |
cpe:/a:redhat:satellite:6 |
{
"containers": {
"adp": [
{
"metrics": [
{
"other": {
"content": {
"id": "CVE-2026-27459",
"options": [
{
"Exploitation": "none"
},
{
"Automatable": "no"
},
{
"Technical Impact": "total"
}
],
"role": "CISA Coordinator",
"timestamp": "2026-03-18T19:52:08.536876Z",
"version": "2.0.3"
},
"type": "ssvc"
}
}
],
"providerMetadata": {
"dateUpdated": "2026-03-18T19:52:15.812Z",
"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
"shortName": "CISA-ADP"
},
"title": "CISA ADP Vulnrichment"
},
{
"affected": [
{
"collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
"cpes": [
"cpe:/a:redhat:ansible_automation_platform:2.5::el8"
],
"defaultStatus": "affected",
"packageName": "python3.12-pyOpenSSL",
"product": "Red Hat Ansible Automation Platform 2.5 for RHEL 8",
"vendor": "Red Hat",
"versions": [
{
"lessThan": "*",
"status": "unaffected",
"version": "0:26.0.0-1.el8ap",
"versionType": "rpm"
}
]
},
{
"collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
"cpes": [
"cpe:/a:redhat:ansible_automation_platform:2.5::el9"
],
"defaultStatus": "affected",
"packageName": "python3.12-pyOpenSSL",
"product": "Red Hat Ansible Automation Platform 2.5 for RHEL 9",
"vendor": "Red Hat",
"versions": [
{
"lessThan": "*",
"status": "unaffected",
"version": "0:26.0.0-1.el9ap",
"versionType": "rpm"
}
]
},
{
"collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
"cpes": [
"cpe:/a:redhat:ansible_automation_platform:2.6::el9"
],
"defaultStatus": "affected",
"packageName": "automation-controller",
"product": "Red Hat Ansible Automation Platform 2.6 for RHEL 9",
"vendor": "Red Hat",
"versions": [
{
"lessThan": "*",
"status": "unaffected",
"version": "0:4.7.11-2.el9ap",
"versionType": "rpm"
}
]
},
{
"collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
"cpes": [
"cpe:/a:redhat:ansible_automation_platform:2.6::el9"
],
"defaultStatus": "affected",
"packageName": "python3.12-pyOpenSSL",
"product": "Red Hat Ansible Automation Platform 2.6 for RHEL 9",
"vendor": "Red Hat",
"versions": [
{
"lessThan": "*",
"status": "unaffected",
"version": "0:26.0.0-1.el9ap",
"versionType": "rpm"
}
]
},
{
"collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
"cpes": [
"cpe:/a:redhat:satellite:6.16::el8",
"cpe:/a:redhat:satellite_capsule:6.16::el8"
],
"defaultStatus": "affected",
"packageName": "python-pyOpenSSL",
"product": "Red Hat Satellite 6.16 for RHEL 8",
"vendor": "Red Hat",
"versions": [
{
"lessThan": "*",
"status": "unaffected",
"version": "0:24.1.0-2.el8pc",
"versionType": "rpm"
}
]
},
{
"collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
"cpes": [
"cpe:/a:redhat:satellite:6.16::el9",
"cpe:/a:redhat:satellite_capsule:6.16::el9"
],
"defaultStatus": "affected",
"packageName": "python-pyOpenSSL",
"product": "Red Hat Satellite 6.16 for RHEL 9",
"vendor": "Red Hat",
"versions": [
{
"lessThan": "*",
"status": "unaffected",
"version": "0:24.1.0-2.el9pc",
"versionType": "rpm"
}
]
},
{
"collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
"cpes": [
"cpe:/a:redhat:satellite:6.17::el9",
"cpe:/a:redhat:satellite_capsule:6.17::el9"
],
"defaultStatus": "affected",
"packageName": "python-pyOpenSSL",
"product": "Red Hat Satellite 6.17 for RHEL 9",
"vendor": "Red Hat",
"versions": [
{
"lessThan": "*",
"status": "unaffected",
"version": "0:25.1.0-0.3.el9pc",
"versionType": "rpm"
}
]
},
{
"collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
"cpes": [
"cpe:/a:redhat:satellite:6.18::el9",
"cpe:/a:redhat:satellite_capsule:6.18::el9"
],
"defaultStatus": "affected",
"packageName": "python3.12-pyOpenSSL",
"product": "Red Hat Satellite 6.18 for RHEL 9",
"vendor": "Red Hat",
"versions": [
{
"lessThan": "*",
"status": "unaffected",
"version": "0:26.0.0-2.el9pc",
"versionType": "rpm"
}
]
},
{
"collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
"cpes": [
"cpe:/a:redhat:rhui:4::el8"
],
"defaultStatus": "affected",
"packageName": "python-pyOpenSSL",
"product": "RHUI 4 for RHEL 8",
"vendor": "Red Hat",
"versions": [
{
"lessThan": "*",
"status": "unaffected",
"version": "0:24.1.0-2.el8ui",
"versionType": "rpm"
}
]
},
{
"collectionURL": "https://catalog.redhat.com/software/containers/",
"cpes": [
"cpe:/a:redhat:ansible_automation_platform:2.5::el8"
],
"defaultStatus": "affected",
"packageName": "ansible-automation-platform-25/ee-supported-rhel8",
"product": "Red Hat Ansible Automation Platform 2.5",
"vendor": "Red Hat",
"versions": [
{
"lessThan": "*",
"status": "unaffected",
"version": "1777398315",
"versionType": "rpm"
}
]
},
{
"collectionURL": "https://catalog.redhat.com/software/containers/",
"cpes": [
"cpe:/a:redhat:ansible_automation_platform:2.5::el8"
],
"defaultStatus": "affected",
"packageName": "ansible-automation-platform-25/lightspeed-rhel8",
"product": "Red Hat Ansible Automation Platform 2.5",
"vendor": "Red Hat",
"versions": [
{
"lessThan": "*",
"status": "unaffected",
"version": "1777403872",
"versionType": "rpm"
}
]
},
{
"collectionURL": "https://catalog.redhat.com/software/containers/",
"cpes": [
"cpe:/a:redhat:ansible_automation_platform:2.6::el9"
],
"defaultStatus": "affected",
"packageName": "ansible-automation-platform-26/ansible-dev-tools-rhel9",
"product": "Red Hat Ansible Automation Platform 2.6",
"vendor": "Red Hat",
"versions": [
{
"lessThan": "*",
"status": "unaffected",
"version": "1777390240",
"versionType": "rpm"
}
]
},
{
"collectionURL": "https://catalog.redhat.com/software/containers/",
"cpes": [
"cpe:/a:redhat:ansible_automation_platform:2.6::el9"
],
"defaultStatus": "affected",
"packageName": "ansible-automation-platform-26/eda-controller-rhel9",
"product": "Red Hat Ansible Automation Platform 2.6",
"vendor": "Red Hat",
"versions": [
{
"lessThan": "*",
"status": "unaffected",
"version": "1777296732",
"versionType": "rpm"
}
]
},
{
"collectionURL": "https://catalog.redhat.com/software/containers/",
"cpes": [
"cpe:/a:redhat:ansible_automation_platform:2.6::el9"
],
"defaultStatus": "affected",
"packageName": "ansible-automation-platform-26/ee-supported-rhel9",
"product": "Red Hat Ansible Automation Platform 2.6",
"vendor": "Red Hat",
"versions": [
{
"lessThan": "*",
"status": "unaffected",
"version": "1777391447",
"versionType": "rpm"
}
]
},
{
"collectionURL": "https://catalog.redhat.com/software/containers/",
"cpes": [
"cpe:/a:redhat:ansible_automation_platform:2.6::el9"
],
"defaultStatus": "affected",
"packageName": "ansible-automation-platform-26/hub-rhel9",
"product": "Red Hat Ansible Automation Platform 2.6",
"vendor": "Red Hat",
"versions": [
{
"lessThan": "*",
"status": "unaffected",
"version": "1777299023",
"versionType": "rpm"
}
]
},
{
"collectionURL": "https://catalog.redhat.com/software/containers/",
"cpes": [
"cpe:/a:redhat:ansible_automation_platform:2.6::el9"
],
"defaultStatus": "affected",
"packageName": "ansible-automation-platform-26/lightspeed-rhel9",
"product": "Red Hat Ansible Automation Platform 2.6",
"vendor": "Red Hat",
"versions": [
{
"lessThan": "*",
"status": "unaffected",
"version": "1777387242",
"versionType": "rpm"
}
]
},
{
"collectionURL": "https://catalog.redhat.com/software/containers/",
"cpes": [
"cpe:/a:redhat:ansible_automation_platform:2.6::el9"
],
"defaultStatus": "affected",
"packageName": "ansible-automation-platform-26/platform-resource-runner-rhel9",
"product": "Red Hat Ansible Automation Platform 2.6",
"vendor": "Red Hat",
"versions": [
{
"lessThan": "*",
"status": "unaffected",
"version": "1777390333",
"versionType": "rpm"
}
]
},
{
"collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
"cpes": [
"cpe:/a:redhat:hummingbird:1"
],
"defaultStatus": "affected",
"packageName": "pyopenssl-main",
"product": "Red Hat Hardened Images",
"vendor": "Red Hat",
"versions": [
{
"lessThan": "*",
"status": "unaffected",
"version": "26.0.0-1.1.hum1",
"versionType": "rpm"
}
]
},
{
"collectionURL": "https://catalog.redhat.com/software/containers/",
"cpes": [
"cpe:/a:redhat:quay:3.10::el8"
],
"defaultStatus": "affected",
"packageName": "quay/quay-rhel8",
"product": "Red Hat Quay 3.1",
"vendor": "Red Hat",
"versions": [
{
"lessThan": "*",
"status": "unaffected",
"version": "1776736910",
"versionType": "rpm"
}
]
},
{
"collectionURL": "https://catalog.redhat.com/software/containers/",
"cpes": [
"cpe:/a:redhat:quay:3.12::el8"
],
"defaultStatus": "affected",
"packageName": "quay/quay-rhel8",
"product": "Red Hat Quay 3.12",
"vendor": "Red Hat",
"versions": [
{
"lessThan": "*",
"status": "unaffected",
"version": "1776752646",
"versionType": "rpm"
}
]
},
{
"collectionURL": "https://catalog.redhat.com/software/containers/",
"cpes": [
"cpe:/a:redhat:quay:3.14::el8"
],
"defaultStatus": "affected",
"packageName": "quay/quay-rhel8",
"product": "Red Hat Quay 3.14",
"vendor": "Red Hat",
"versions": [
{
"lessThan": "*",
"status": "unaffected",
"version": "1779689392",
"versionType": "rpm"
}
]
},
{
"collectionURL": "https://catalog.redhat.com/software/containers/",
"cpes": [
"cpe:/a:redhat:quay:3.15::el8"
],
"defaultStatus": "affected",
"packageName": "quay/quay-rhel8",
"product": "Red Hat Quay 3.15",
"vendor": "Red Hat",
"versions": [
{
"lessThan": "*",
"status": "unaffected",
"version": "1780891395",
"versionType": "rpm"
}
]
},
{
"collectionURL": "https://catalog.redhat.com/software/containers/",
"cpes": [
"cpe:/a:redhat:quay:3.16::el9"
],
"defaultStatus": "affected",
"packageName": "quay/quay-rhel9",
"product": "Red Hat Quay 3.16",
"vendor": "Red Hat",
"versions": [
{
"lessThan": "*",
"status": "unaffected",
"version": "1779204086",
"versionType": "rpm"
}
]
},
{
"collectionURL": "https://catalog.redhat.com/software/containers/",
"cpes": [
"cpe:/a:redhat:quay:3.17::el9"
],
"defaultStatus": "affected",
"packageName": "quay/quay-rhel9",
"product": "Red Hat Quay 3.17",
"vendor": "Red Hat",
"versions": [
{
"lessThan": "*",
"status": "unaffected",
"version": "1779922205",
"versionType": "rpm"
}
]
},
{
"collectionURL": "https://catalog.redhat.com/software/containers/",
"cpes": [
"cpe:/a:redhat:quay:3.9::el8"
],
"defaultStatus": "affected",
"packageName": "quay/quay-rhel8",
"product": "Red Hat Quay 3.9",
"vendor": "Red Hat",
"versions": [
{
"lessThan": "*",
"status": "unaffected",
"version": "1776782369",
"versionType": "rpm"
}
]
},
{
"collectionURL": "https://catalog.redhat.com/software/containers/",
"cpes": [
"cpe:/a:redhat:trusted_artifact_signer:1.4::el9"
],
"defaultStatus": "affected",
"packageName": "rhtas/model-transparency-rhel9",
"product": "Red Hat Trusted Artifact Signer 1.4",
"vendor": "Red Hat",
"versions": [
{
"lessThan": "*",
"status": "unaffected",
"version": "1775815407",
"versionType": "rpm"
}
]
},
{
"collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
"cpes": [
"cpe:/a:redhat:ansible_automation_platform:2"
],
"defaultStatus": "affected",
"packageName": "ansible-automation-platform-26/controller-rhel9",
"product": "Red Hat Ansible Automation Platform 2",
"vendor": "Red Hat"
},
{
"collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
"cpes": [
"cpe:/a:redhat:ansible_automation_platform:2"
],
"defaultStatus": "affected",
"packageName": "ansible-automation-platform-26/ee-minimal-rhel9",
"product": "Red Hat Ansible Automation Platform 2",
"vendor": "Red Hat"
},
{
"collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
"cpes": [
"cpe:/a:redhat:ansible_automation_platform:2"
],
"defaultStatus": "unaffected",
"packageName": "python3.11-pyOpenSSL",
"product": "Red Hat Ansible Automation Platform 2",
"vendor": "Red Hat"
},
{
"collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
"cpes": [
"cpe:/a:redhat:ansible_automation_platform:2"
],
"defaultStatus": "unaffected",
"packageName": "python3x-pyOpenSSL",
"product": "Red Hat Ansible Automation Platform 2",
"vendor": "Red Hat"
},
{
"collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
"cpes": [
"cpe:/a:redhat:ansible_automation_platform:2"
],
"defaultStatus": "unaffected",
"packageName": "python-pyOpenSSL",
"product": "Red Hat Ansible Automation Platform 2",
"vendor": "Red Hat"
},
{
"collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
"cpes": [
"cpe:/a:redhat:ansible_core:2"
],
"defaultStatus": "affected",
"packageName": "ansible-automation-platform/ee-minimal-rhel8",
"product": "Red Hat Ansible Automation Platform Ansible Core 2",
"vendor": "Red Hat"
},
{
"collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
"cpes": [
"cpe:/a:redhat:ansible_core:2"
],
"defaultStatus": "affected",
"packageName": "ansible-automation-platform/ee-minimal-rhel9",
"product": "Red Hat Ansible Automation Platform Ansible Core 2",
"vendor": "Red Hat"
},
{
"collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
"cpes": [
"cpe:/a:redhat:ansible_core:2"
],
"defaultStatus": "affected",
"packageName": "ansible-automation-platform-tech-preview/ee-minimal-rhel8",
"product": "Red Hat Ansible Automation Platform Ansible Core 2",
"vendor": "Red Hat"
},
{
"collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
"cpes": [
"cpe:/a:redhat:ansible_core:2"
],
"defaultStatus": "affected",
"packageName": "ansible-automation-platform-tech-preview/ee-minimal-rhel9",
"product": "Red Hat Ansible Automation Platform Ansible Core 2",
"vendor": "Red Hat"
},
{
"collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
"cpes": [
"cpe:/o:redhat:enterprise_linux:6"
],
"defaultStatus": "unaffected",
"packageName": "pyOpenSSL",
"product": "Red Hat Enterprise Linux 6",
"vendor": "Red Hat"
},
{
"collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
"cpes": [
"cpe:/o:redhat:enterprise_linux:7"
],
"defaultStatus": "unaffected",
"packageName": "pyOpenSSL",
"product": "Red Hat Enterprise Linux 7",
"vendor": "Red Hat"
},
{
"collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
"cpes": [
"cpe:/o:redhat:enterprise_linux:8"
],
"defaultStatus": "unaffected",
"packageName": "pyOpenSSL",
"product": "Red Hat Enterprise Linux 8",
"vendor": "Red Hat"
},
{
"collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
"cpes": [
"cpe:/a:redhat:openshift_ai"
],
"defaultStatus": "affected",
"packageName": "rhoai/odh-feature-server-rhel9",
"product": "Red Hat OpenShift AI (RHOAI)",
"vendor": "Red Hat"
},
{
"collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
"cpes": [
"cpe:/a:redhat:openshift_ai"
],
"defaultStatus": "unaffected",
"packageName": "rhoai/odh-mlflow-rhel9",
"product": "Red Hat OpenShift AI (RHOAI)",
"vendor": "Red Hat"
},
{
"collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
"cpes": [
"cpe:/a:redhat:openshift:4"
],
"defaultStatus": "unaffected",
"packageName": "pyOpenSSL",
"product": "Red Hat OpenShift Container Platform 4",
"vendor": "Red Hat"
},
{
"collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
"cpes": [
"cpe:/a:redhat:openstack:17.1"
],
"defaultStatus": "unaffected",
"packageName": "pyOpenSSL",
"product": "Red Hat OpenStack Platform 17.1",
"vendor": "Red Hat"
},
{
"collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
"cpes": [
"cpe:/a:redhat:openstack:18.0"
],
"defaultStatus": "unaffected",
"packageName": "pyOpenSSL",
"product": "Red Hat OpenStack Platform 18.0",
"vendor": "Red Hat"
},
{
"collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
"cpes": [
"cpe:/a:redhat:satellite:6"
],
"defaultStatus": "unaffected",
"packageName": "satellite/iop-advisor-engine-rhel9",
"product": "Red Hat Satellite 6",
"vendor": "Red Hat"
},
{
"collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
"cpes": [
"cpe:/a:redhat:satellite:6"
],
"defaultStatus": "unaffected",
"packageName": "satellite/iop-insights-engine-rhel9",
"product": "Red Hat Satellite 6",
"vendor": "Red Hat"
}
],
"datePublic": "2026-03-17T23:34:28.483Z",
"descriptions": [
{
"lang": "en",
"value": "A flaw was found in pyOpenSSL. The set_cookie_generate_callback callback function can be used to generate DTLS cookies. When the callback returns a cookie string or byte sequence longer than 256 bytes, a buffer overflow can be triggered due to a missing bounds checking before copying the data to a fixed-size buffer provided by the underlying OpenSSL library."
}
],
"metrics": [
{
"other": {
"content": {
"namespace": "https://access.redhat.com/security/updates/classification/",
"value": "Important"
},
"type": "Red Hat severity rating"
}
},
{
"cvssV3_1": {
"attackComplexity": "HIGH",
"attackVector": "NETWORK",
"availabilityImpact": "HIGH",
"baseScore": 8.1,
"baseSeverity": "HIGH",
"confidentialityImpact": "HIGH",
"integrityImpact": "HIGH",
"privilegesRequired": "NONE",
"scope": "UNCHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H",
"version": "3.1"
},
"format": "CVSS"
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-120",
"description": "Buffer Copy without Checking Size of Input (\u0027Classic Buffer Overflow\u0027)",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-07-20T12:04:52.880Z",
"orgId": "0b0ca135-0b70-47e7-9f44-1890c2a1c46c",
"shortName": "redhat-SADP"
},
"references": [
{
"tags": [
"vdb-entry",
"x_refsource_REDHAT"
],
"url": "https://access.redhat.com/security/cve/CVE-2026-27459"
},
{
"name": "RHBZ#2448503",
"tags": [
"issue-tracking",
"x_refsource_REDHAT"
],
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2448503"
},
{
"tags": [
"x_sadp-csaf-vex"
],
"url": "https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-27459.json"
},
{
"tags": [
"vendor-advisory",
"x_refsource_REDHAT"
],
"url": "https://access.redhat.com/errata/RHSA-2026:13512"
},
{
"tags": [
"vendor-advisory",
"x_refsource_REDHAT"
],
"url": "https://access.redhat.com/errata/RHSA-2026:10754"
},
{
"tags": [
"vendor-advisory",
"x_refsource_REDHAT"
],
"url": "https://access.redhat.com/errata/RHSA-2026:14874"
},
{
"tags": [
"vendor-advisory",
"x_refsource_REDHAT"
],
"url": "https://access.redhat.com/errata/RHSA-2026:13508"
},
{
"tags": [
"vendor-advisory",
"x_refsource_REDHAT"
],
"url": "https://access.redhat.com/errata/RHSA-2026:14873"
},
{
"tags": [
"vendor-advisory",
"x_refsource_REDHAT"
],
"url": "https://access.redhat.com/errata/RHSA-2026:14835"
},
{
"tags": [
"vendor-advisory",
"x_refsource_REDHAT"
],
"url": "https://access.redhat.com/errata/RHSA-2026:13553"
},
{
"tags": [
"vendor-advisory",
"x_refsource_REDHAT"
],
"url": "https://access.redhat.com/errata/RHSA-2026:13545"
},
{
"tags": [
"vendor-advisory",
"x_refsource_REDHAT"
],
"url": "https://access.redhat.com/errata/RHSA-2026:7224"
},
{
"tags": [
"vendor-advisory",
"x_refsource_REDHAT"
],
"url": "https://access.redhat.com/errata/RHSA-2026:11856"
},
{
"tags": [
"vendor-advisory",
"x_refsource_REDHAT"
],
"url": "https://access.redhat.com/errata/RHSA-2026:21017"
},
{
"tags": [
"vendor-advisory",
"x_refsource_REDHAT"
],
"url": "https://access.redhat.com/errata/RHSA-2026:24853"
},
{
"tags": [
"vendor-advisory",
"x_refsource_REDHAT"
],
"url": "https://access.redhat.com/errata/RHSA-2026:19375"
},
{
"tags": [
"vendor-advisory",
"x_refsource_REDHAT"
],
"url": "https://access.redhat.com/errata/RHSA-2026:22465"
},
{
"tags": [
"vendor-advisory",
"x_refsource_REDHAT"
],
"url": "https://access.redhat.com/errata/RHSA-2026:11916"
},
{
"tags": [
"vendor-advisory",
"x_refsource_REDHAT"
],
"url": "https://access.redhat.com/errata/RHSA-2026:11996"
},
{
"tags": [
"vendor-advisory",
"x_refsource_REDHAT"
],
"url": "https://access.redhat.com/errata/RHSA-2026:8437"
}
],
"solutions": [
{
"lang": "en",
"value": "RHSA-2026:13512: Red Hat Ansible Automation Platform 2.5 for RHEL 8, Red Hat Ansible Automation Platform 2.5 for RHEL 9"
},
{
"lang": "en",
"value": "RHSA-2026:10754: RHUI 4 for RHEL 8"
},
{
"lang": "en",
"value": "RHSA-2026:14874: Red Hat Satellite 6.16 for RHEL 8, Red Hat Satellite 6.16 for RHEL 9"
},
{
"lang": "en",
"value": "RHSA-2026:13508: Red Hat Ansible Automation Platform 2.6 for RHEL 9"
},
{
"lang": "en",
"value": "RHSA-2026:14873: Red Hat Satellite 6.17 for RHEL 9"
},
{
"lang": "en",
"value": "RHSA-2026:14835: Red Hat Satellite 6.18 for RHEL 9"
},
{
"lang": "en",
"value": "RHSA-2026:13553: Red Hat Ansible Automation Platform 2.5"
},
{
"lang": "en",
"value": "RHSA-2026:13545: Red Hat Ansible Automation Platform 2.6"
},
{
"lang": "en",
"value": "RHSA-2026:7224: Red Hat Hardened Images"
},
{
"lang": "en",
"value": "RHSA-2026:11856: Red Hat Quay 3.12"
},
{
"lang": "en",
"value": "RHSA-2026:21017: Red Hat Quay 3.14"
},
{
"lang": "en",
"value": "RHSA-2026:24853: Red Hat Quay 3.15"
},
{
"lang": "en",
"value": "RHSA-2026:19375: Red Hat Quay 3.16"
},
{
"lang": "en",
"value": "RHSA-2026:22465: Red Hat Quay 3.17"
},
{
"lang": "en",
"value": "RHSA-2026:11916: Red Hat Quay 3.1"
},
{
"lang": "en",
"value": "RHSA-2026:11996: Red Hat Quay 3.9"
},
{
"lang": "en",
"value": "RHSA-2026:8437: Red Hat Trusted Artifact Signer 1.4"
}
],
"timeline": [
{
"lang": "en",
"time": "2026-03-18T00:01:41.404Z",
"value": "Reported to Red Hat."
},
{
"lang": "en",
"time": "2026-03-17T23:34:28.483Z",
"value": "Made public."
}
],
"title": "pyOpenSSL: DTLS cookie callback buffer overflow",
"workarounds": [
{
"lang": "en",
"value": "To mitigate this flaw, ensure the callback provided to the set_cookie_generate_callback function strictly limits the returned cookie string or byte sequence to under 256 bytes."
}
],
"x_adpType": "supplier",
"x_generator": {
"engine": "sadp-cli 1.0.0"
}
}
],
"cna": {
"affected": [
{
"product": "pyopenssl",
"vendor": "pyca",
"versions": [
{
"status": "affected",
"version": "\u003e= 22.0.0, \u003c 26.0.0"
}
]
}
],
"descriptions": [
{
"lang": "en",
"value": "pyOpenSSL is a Python wrapper around the OpenSSL library. Starting in version 22.0.0 and prior to version 26.0.0, if a user provided callback to `set_cookie_generate_callback` returned a cookie value greater than 256 bytes, pyOpenSSL would overflow an OpenSSL provided buffer. Starting in version 26.0.0, cookie values that are too long are now rejected."
}
],
"metrics": [
{
"cvssV4_0": {
"attackComplexity": "HIGH",
"attackRequirements": "PRESENT",
"attackVector": "NETWORK",
"baseScore": 7.2,
"baseSeverity": "HIGH",
"privilegesRequired": "NONE",
"subAvailabilityImpact": "NONE",
"subConfidentialityImpact": "NONE",
"subIntegrityImpact": "NONE",
"userInteraction": "NONE",
"vectorString": "CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U",
"version": "4.0",
"vulnAvailabilityImpact": "HIGH",
"vulnConfidentialityImpact": "HIGH",
"vulnIntegrityImpact": "HIGH"
}
}
],
"problemTypes": [
{
"descriptions": [
{
"cweId": "CWE-120",
"description": "CWE-120: Buffer Copy without Checking Size of Input (\u0027Classic Buffer Overflow\u0027)",
"lang": "en",
"type": "CWE"
}
]
}
],
"providerMetadata": {
"dateUpdated": "2026-03-17T23:34:28.483Z",
"orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
"shortName": "GitHub_M"
},
"references": [
{
"name": "https://github.com/pyca/pyopenssl/security/advisories/GHSA-5pwr-322w-8jr4",
"tags": [
"x_refsource_CONFIRM"
],
"url": "https://github.com/pyca/pyopenssl/security/advisories/GHSA-5pwr-322w-8jr4"
},
{
"name": "https://github.com/pyca/pyopenssl/commit/57f09bb4bb051d3bc2a1abd36e9525313d5cd408",
"tags": [
"x_refsource_MISC"
],
"url": "https://github.com/pyca/pyopenssl/commit/57f09bb4bb051d3bc2a1abd36e9525313d5cd408"
},
{
"name": "https://github.com/pyca/pyopenssl/blob/358cbf29c4e364c59930e53a270116249581eaa3/CHANGELOG.rst",
"tags": [
"x_refsource_MISC"
],
"url": "https://github.com/pyca/pyopenssl/blob/358cbf29c4e364c59930e53a270116249581eaa3/CHANGELOG.rst"
}
],
"source": {
"advisory": "GHSA-5pwr-322w-8jr4",
"discovery": "UNKNOWN"
},
"title": "pyOpenSSL DTLS cookie callback buffer overflow"
}
},
"cveMetadata": {
"assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
"assignerShortName": "GitHub_M",
"cveId": "CVE-2026-27459",
"datePublished": "2026-03-17T23:34:28.483Z",
"dateReserved": "2026-02-19T17:25:31.100Z",
"dateUpdated": "2026-07-20T12:04:52.880Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2",
"vulnerability-lookup:meta": {
"epss": {
"cve": "CVE-2026-27459",
"date": "2026-07-24",
"epss": "0.00704",
"percentile": "0.49502"
},
"microsoft_vex": {
"current_release_date": "2026-03-21T01:37:02.000Z",
"cve": "CVE-2026-27459",
"id": "msrc_CVE-2026-27459",
"initial_release_date": "2026-03-02T00:00:00.000Z",
"product_status:fixed": "1",
"product_status:known_affected": "2",
"source": "Microsoft CSAF VEX",
"status": "final",
"title": "pyOpenSSL DTLS cookie callback buffer overflow",
"url": "https://msrc.microsoft.com/csaf/vex/2026/msrc_cve-2026-27459.json",
"version": "2"
},
"nvd": "{\"cve\":{\"id\":\"CVE-2026-27459\",\"sourceIdentifier\":\"security-advisories@github.com\",\"published\":\"2026-03-18T00:16:19.273\",\"lastModified\":\"2026-07-20T12:18:22.423\",\"vulnStatus\":\"Modified\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"pyOpenSSL is a Python wrapper around the OpenSSL library. Starting in version 22.0.0 and prior to version 26.0.0, if a user provided callback to `set_cookie_generate_callback` returned a cookie value greater than 256 bytes, pyOpenSSL would overflow an OpenSSL provided buffer. Starting in version 26.0.0, cookie values that are too long are now rejected.\"},{\"lang\":\"es\",\"value\":\"pyOpenSSL es un envoltorio de Python para la biblioteca OpenSSL. A partir de la versi\u00f3n 22.0.0 y antes de la versi\u00f3n 26.0.0, si una devoluci\u00f3n de llamada proporcionada por el usuario a set_cookie_generate_callback devolv\u00eda un valor de cookie superior a 256 bytes, pyOpenSSL desbordar\u00eda un b\u00fafer proporcionado por OpenSSL. A partir de la versi\u00f3n 26.0.0, los valores de cookie que son demasiado largos ahora son rechazados.\"}],\"affected\":[{\"source\":\"security-advisories@github.com\",\"affectedData\":[{\"vendor\":\"pyca\",\"product\":\"pyopenssl\",\"versions\":[{\"version\":\"\u003e= 22.0.0, \u003c 26.0.0\",\"status\":\"affected\"}]}]},{\"source\":\"0b0ca135-0b70-47e7-9f44-1890c2a1c46c\",\"affectedData\":[{\"vendor\":\"Red Hat\",\"product\":\"Red Hat Ansible Automation Platform 2.5 for RHEL 8\",\"defaultStatus\":\"affected\",\"collectionURL\":\"https://access.redhat.com/downloads/content/package-browser/\",\"packageName\":\"python3.12-pyOpenSSL\",\"cpes\":[\"cpe:/a:redhat:ansible_automation_platform:2.5::el8\"],\"versions\":[{\"version\":\"0:26.0.0-1.el8ap\",\"lessThan\":\"*\",\"versionType\":\"rpm\",\"status\":\"unaffected\"}]},{\"vendor\":\"Red Hat\",\"product\":\"Red Hat Ansible Automation Platform 2.5 for RHEL 9\",\"defaultStatus\":\"affected\",\"collectionURL\":\"https://access.redhat.com/downloads/content/package-browser/\",\"packageName\":\"python3.12-pyOpenSSL\",\"cpes\":[\"cpe:/a:redhat:ansible_automation_platform:2.5::el9\"],\"versions\":[{\"version\":\"0:26.0.0-1.el9ap\",\"lessThan\":\"*\",\"versionType\":\"rpm\",\"status\":\"unaffected\"}]},{\"vendor\":\"Red Hat\",\"product\":\"Red Hat Ansible Automation Platform 2.6 for RHEL 9\",\"defaultStatus\":\"affected\",\"collectionURL\":\"https://access.redhat.com/downloads/content/package-browser/\",\"packageName\":\"automation-controller\",\"cpes\":[\"cpe:/a:redhat:ansible_automation_platform:2.6::el9\"],\"versions\":[{\"version\":\"0:4.7.11-2.el9ap\",\"lessThan\":\"*\",\"versionType\":\"rpm\",\"status\":\"unaffected\"}]},{\"vendor\":\"Red Hat\",\"product\":\"Red Hat Ansible Automation Platform 2.6 for RHEL 9\",\"defaultStatus\":\"affected\",\"collectionURL\":\"https://access.redhat.com/downloads/content/package-browser/\",\"packageName\":\"python3.12-pyOpenSSL\",\"cpes\":[\"cpe:/a:redhat:ansible_automation_platform:2.6::el9\"],\"versions\":[{\"version\":\"0:26.0.0-1.el9ap\",\"lessThan\":\"*\",\"versionType\":\"rpm\",\"status\":\"unaffected\"}]},{\"vendor\":\"Red Hat\",\"product\":\"Red Hat Satellite 6.16 for RHEL 8\",\"defaultStatus\":\"affected\",\"collectionURL\":\"https://access.redhat.com/downloads/content/package-browser/\",\"packageName\":\"python-pyOpenSSL\",\"cpes\":[\"cpe:/a:redhat:satellite:6.16::el8\",\"cpe:/a:redhat:satellite_capsule:6.16::el8\"],\"versions\":[{\"version\":\"0:24.1.0-2.el8pc\",\"lessThan\":\"*\",\"versionType\":\"rpm\",\"status\":\"unaffected\"}]},{\"vendor\":\"Red Hat\",\"product\":\"Red Hat Satellite 6.16 for RHEL 9\",\"defaultStatus\":\"affected\",\"collectionURL\":\"https://access.redhat.com/downloads/content/package-browser/\",\"packageName\":\"python-pyOpenSSL\",\"cpes\":[\"cpe:/a:redhat:satellite:6.16::el9\",\"cpe:/a:redhat:satellite_capsule:6.16::el9\"],\"versions\":[{\"version\":\"0:24.1.0-2.el9pc\",\"lessThan\":\"*\",\"versionType\":\"rpm\",\"status\":\"unaffected\"}]},{\"vendor\":\"Red Hat\",\"product\":\"Red Hat Satellite 6.17 for RHEL 9\",\"defaultStatus\":\"affected\",\"collectionURL\":\"https://access.redhat.com/downloads/content/package-browser/\",\"packageName\":\"python-pyOpenSSL\",\"cpes\":[\"cpe:/a:redhat:satellite:6.17::el9\",\"cpe:/a:redhat:satellite_capsule:6.17::el9\"],\"versions\":[{\"version\":\"0:25.1.0-0.3.el9pc\",\"lessThan\":\"*\",\"versionType\":\"rpm\",\"status\":\"unaffected\"}]},{\"vendor\":\"Red Hat\",\"product\":\"Red Hat Satellite 6.18 for RHEL 9\",\"defaultStatus\":\"affected\",\"collectionURL\":\"https://access.redhat.com/downloads/content/package-browser/\",\"packageName\":\"python3.12-pyOpenSSL\",\"cpes\":[\"cpe:/a:redhat:satellite:6.18::el9\",\"cpe:/a:redhat:satellite_capsule:6.18::el9\"],\"versions\":[{\"version\":\"0:26.0.0-2.el9pc\",\"lessThan\":\"*\",\"versionType\":\"rpm\",\"status\":\"unaffected\"}]},{\"vendor\":\"Red Hat\",\"product\":\"RHUI 4 for RHEL 8\",\"defaultStatus\":\"affected\",\"collectionURL\":\"https://access.redhat.com/downloads/content/package-browser/\",\"packageName\":\"python-pyOpenSSL\",\"cpes\":[\"cpe:/a:redhat:rhui:4::el8\"],\"versions\":[{\"version\":\"0:24.1.0-2.el8ui\",\"lessThan\":\"*\",\"versionType\":\"rpm\",\"status\":\"unaffected\"}]},{\"vendor\":\"Red Hat\",\"product\":\"Red Hat Ansible Automation Platform 2.5\",\"defaultStatus\":\"affected\",\"collectionURL\":\"https://catalog.redhat.com/software/containers/\",\"packageName\":\"ansible-automation-platform-25/ee-supported-rhel8\",\"cpes\":[\"cpe:/a:redhat:ansible_automation_platform:2.5::el8\"],\"versions\":[{\"version\":\"1777398315\",\"lessThan\":\"*\",\"versionType\":\"rpm\",\"status\":\"unaffected\"}]},{\"vendor\":\"Red Hat\",\"product\":\"Red Hat Ansible Automation Platform 2.5\",\"defaultStatus\":\"affected\",\"collectionURL\":\"https://catalog.redhat.com/software/containers/\",\"packageName\":\"ansible-automation-platform-25/lightspeed-rhel8\",\"cpes\":[\"cpe:/a:redhat:ansible_automation_platform:2.5::el8\"],\"versions\":[{\"version\":\"1777403872\",\"lessThan\":\"*\",\"versionType\":\"rpm\",\"status\":\"unaffected\"}]},{\"vendor\":\"Red Hat\",\"product\":\"Red Hat Ansible Automation Platform 2.6\",\"defaultStatus\":\"affected\",\"collectionURL\":\"https://catalog.redhat.com/software/containers/\",\"packageName\":\"ansible-automation-platform-26/ansible-dev-tools-rhel9\",\"cpes\":[\"cpe:/a:redhat:ansible_automation_platform:2.6::el9\"],\"versions\":[{\"version\":\"1777390240\",\"lessThan\":\"*\",\"versionType\":\"rpm\",\"status\":\"unaffected\"}]},{\"vendor\":\"Red Hat\",\"product\":\"Red Hat Ansible Automation Platform 2.6\",\"defaultStatus\":\"affected\",\"collectionURL\":\"https://catalog.redhat.com/software/containers/\",\"packageName\":\"ansible-automation-platform-26/eda-controller-rhel9\",\"cpes\":[\"cpe:/a:redhat:ansible_automation_platform:2.6::el9\"],\"versions\":[{\"version\":\"1777296732\",\"lessThan\":\"*\",\"versionType\":\"rpm\",\"status\":\"unaffected\"}]},{\"vendor\":\"Red Hat\",\"product\":\"Red Hat Ansible Automation Platform 2.6\",\"defaultStatus\":\"affected\",\"collectionURL\":\"https://catalog.redhat.com/software/containers/\",\"packageName\":\"ansible-automation-platform-26/ee-supported-rhel9\",\"cpes\":[\"cpe:/a:redhat:ansible_automation_platform:2.6::el9\"],\"versions\":[{\"version\":\"1777391447\",\"lessThan\":\"*\",\"versionType\":\"rpm\",\"status\":\"unaffected\"}]},{\"vendor\":\"Red Hat\",\"product\":\"Red Hat Ansible Automation Platform 2.6\",\"defaultStatus\":\"affected\",\"collectionURL\":\"https://catalog.redhat.com/software/containers/\",\"packageName\":\"ansible-automation-platform-26/hub-rhel9\",\"cpes\":[\"cpe:/a:redhat:ansible_automation_platform:2.6::el9\"],\"versions\":[{\"version\":\"1777299023\",\"lessThan\":\"*\",\"versionType\":\"rpm\",\"status\":\"unaffected\"}]},{\"vendor\":\"Red Hat\",\"product\":\"Red Hat Ansible Automation Platform 2.6\",\"defaultStatus\":\"affected\",\"collectionURL\":\"https://catalog.redhat.com/software/containers/\",\"packageName\":\"ansible-automation-platform-26/lightspeed-rhel9\",\"cpes\":[\"cpe:/a:redhat:ansible_automation_platform:2.6::el9\"],\"versions\":[{\"version\":\"1777387242\",\"lessThan\":\"*\",\"versionType\":\"rpm\",\"status\":\"unaffected\"}]},{\"vendor\":\"Red Hat\",\"product\":\"Red Hat Ansible Automation Platform 2.6\",\"defaultStatus\":\"affected\",\"collectionURL\":\"https://catalog.redhat.com/software/containers/\",\"packageName\":\"ansible-automation-platform-26/platform-resource-runner-rhel9\",\"cpes\":[\"cpe:/a:redhat:ansible_automation_platform:2.6::el9\"],\"versions\":[{\"version\":\"1777390333\",\"lessThan\":\"*\",\"versionType\":\"rpm\",\"status\":\"unaffected\"}]},{\"vendor\":\"Red Hat\",\"product\":\"Red Hat Hardened Images\",\"defaultStatus\":\"affected\",\"collectionURL\":\"https://access.redhat.com/downloads/content/package-browser/\",\"packageName\":\"pyopenssl-main\",\"cpes\":[\"cpe:/a:redhat:hummingbird:1\"],\"versions\":[{\"version\":\"26.0.0-1.1.hum1\",\"lessThan\":\"*\",\"versionType\":\"rpm\",\"status\":\"unaffected\"}]},{\"vendor\":\"Red Hat\",\"product\":\"Red Hat Quay 3.1\",\"defaultStatus\":\"affected\",\"collectionURL\":\"https://catalog.redhat.com/software/containers/\",\"packageName\":\"quay/quay-rhel8\",\"cpes\":[\"cpe:/a:redhat:quay:3.10::el8\"],\"versions\":[{\"version\":\"1776736910\",\"lessThan\":\"*\",\"versionType\":\"rpm\",\"status\":\"unaffected\"}]},{\"vendor\":\"Red Hat\",\"product\":\"Red Hat Quay 3.12\",\"defaultStatus\":\"affected\",\"collectionURL\":\"https://catalog.redhat.com/software/containers/\",\"packageName\":\"quay/quay-rhel8\",\"cpes\":[\"cpe:/a:redhat:quay:3.12::el8\"],\"versions\":[{\"version\":\"1776752646\",\"lessThan\":\"*\",\"versionType\":\"rpm\",\"status\":\"unaffected\"}]},{\"vendor\":\"Red Hat\",\"product\":\"Red Hat Quay 3.14\",\"defaultStatus\":\"affected\",\"collectionURL\":\"https://catalog.redhat.com/software/containers/\",\"packageName\":\"quay/quay-rhel8\",\"cpes\":[\"cpe:/a:redhat:quay:3.14::el8\"],\"versions\":[{\"version\":\"1779689392\",\"lessThan\":\"*\",\"versionType\":\"rpm\",\"status\":\"unaffected\"}]},{\"vendor\":\"Red Hat\",\"product\":\"Red Hat Quay 3.15\",\"defaultStatus\":\"affected\",\"collectionURL\":\"https://catalog.redhat.com/software/containers/\",\"packageName\":\"quay/quay-rhel8\",\"cpes\":[\"cpe:/a:redhat:quay:3.15::el8\"],\"versions\":[{\"version\":\"1780891395\",\"lessThan\":\"*\",\"versionType\":\"rpm\",\"status\":\"unaffected\"}]},{\"vendor\":\"Red Hat\",\"product\":\"Red Hat Quay 3.16\",\"defaultStatus\":\"affected\",\"collectionURL\":\"https://catalog.redhat.com/software/containers/\",\"packageName\":\"quay/quay-rhel9\",\"cpes\":[\"cpe:/a:redhat:quay:3.16::el9\"],\"versions\":[{\"version\":\"1779204086\",\"lessThan\":\"*\",\"versionType\":\"rpm\",\"status\":\"unaffected\"}]},{\"vendor\":\"Red Hat\",\"product\":\"Red Hat Quay 3.17\",\"defaultStatus\":\"affected\",\"collectionURL\":\"https://catalog.redhat.com/software/containers/\",\"packageName\":\"quay/quay-rhel9\",\"cpes\":[\"cpe:/a:redhat:quay:3.17::el9\"],\"versions\":[{\"version\":\"1779922205\",\"lessThan\":\"*\",\"versionType\":\"rpm\",\"status\":\"unaffected\"}]},{\"vendor\":\"Red Hat\",\"product\":\"Red Hat Quay 3.9\",\"defaultStatus\":\"affected\",\"collectionURL\":\"https://catalog.redhat.com/software/containers/\",\"packageName\":\"quay/quay-rhel8\",\"cpes\":[\"cpe:/a:redhat:quay:3.9::el8\"],\"versions\":[{\"version\":\"1776782369\",\"lessThan\":\"*\",\"versionType\":\"rpm\",\"status\":\"unaffected\"}]},{\"vendor\":\"Red Hat\",\"product\":\"Red Hat Trusted Artifact Signer 1.4\",\"defaultStatus\":\"affected\",\"collectionURL\":\"https://catalog.redhat.com/software/containers/\",\"packageName\":\"rhtas/model-transparency-rhel9\",\"cpes\":[\"cpe:/a:redhat:trusted_artifact_signer:1.4::el9\"],\"versions\":[{\"version\":\"1775815407\",\"lessThan\":\"*\",\"versionType\":\"rpm\",\"status\":\"unaffected\"}]},{\"vendor\":\"Red Hat\",\"product\":\"Red Hat Ansible Automation Platform 2\",\"defaultStatus\":\"affected\",\"collectionURL\":\"https://access.redhat.com/downloads/content/package-browser/\",\"packageName\":\"ansible-automation-platform-26/controller-rhel9\",\"cpes\":[\"cpe:/a:redhat:ansible_automation_platform:2\"]},{\"vendor\":\"Red Hat\",\"product\":\"Red Hat Ansible Automation Platform 2\",\"defaultStatus\":\"affected\",\"collectionURL\":\"https://access.redhat.com/downloads/content/package-browser/\",\"packageName\":\"ansible-automation-platform-26/ee-minimal-rhel9\",\"cpes\":[\"cpe:/a:redhat:ansible_automation_platform:2\"]},{\"vendor\":\"Red Hat\",\"product\":\"Red Hat Ansible Automation Platform 2\",\"defaultStatus\":\"unaffected\",\"collectionURL\":\"https://access.redhat.com/downloads/content/package-browser/\",\"packageName\":\"python3.11-pyOpenSSL\",\"cpes\":[\"cpe:/a:redhat:ansible_automation_platform:2\"]},{\"vendor\":\"Red Hat\",\"product\":\"Red Hat Ansible Automation Platform 2\",\"defaultStatus\":\"unaffected\",\"collectionURL\":\"https://access.redhat.com/downloads/content/package-browser/\",\"packageName\":\"python3x-pyOpenSSL\",\"cpes\":[\"cpe:/a:redhat:ansible_automation_platform:2\"]},{\"vendor\":\"Red Hat\",\"product\":\"Red Hat Ansible Automation Platform 2\",\"defaultStatus\":\"unaffected\",\"collectionURL\":\"https://access.redhat.com/downloads/content/package-browser/\",\"packageName\":\"python-pyOpenSSL\",\"cpes\":[\"cpe:/a:redhat:ansible_automation_platform:2\"]},{\"vendor\":\"Red Hat\",\"product\":\"Red Hat Ansible Automation Platform Ansible Core 2\",\"defaultStatus\":\"affected\",\"collectionURL\":\"https://access.redhat.com/downloads/content/package-browser/\",\"packageName\":\"ansible-automation-platform/ee-minimal-rhel8\",\"cpes\":[\"cpe:/a:redhat:ansible_core:2\"]},{\"vendor\":\"Red Hat\",\"product\":\"Red Hat Ansible Automation Platform Ansible Core 2\",\"defaultStatus\":\"affected\",\"collectionURL\":\"https://access.redhat.com/downloads/content/package-browser/\",\"packageName\":\"ansible-automation-platform/ee-minimal-rhel9\",\"cpes\":[\"cpe:/a:redhat:ansible_core:2\"]},{\"vendor\":\"Red Hat\",\"product\":\"Red Hat Ansible Automation Platform Ansible Core 2\",\"defaultStatus\":\"affected\",\"collectionURL\":\"https://access.redhat.com/downloads/content/package-browser/\",\"packageName\":\"ansible-automation-platform-tech-preview/ee-minimal-rhel8\",\"cpes\":[\"cpe:/a:redhat:ansible_core:2\"]},{\"vendor\":\"Red Hat\",\"product\":\"Red Hat Ansible Automation Platform Ansible Core 2\",\"defaultStatus\":\"affected\",\"collectionURL\":\"https://access.redhat.com/downloads/content/package-browser/\",\"packageName\":\"ansible-automation-platform-tech-preview/ee-minimal-rhel9\",\"cpes\":[\"cpe:/a:redhat:ansible_core:2\"]},{\"vendor\":\"Red Hat\",\"product\":\"Red Hat Enterprise Linux 6\",\"defaultStatus\":\"unaffected\",\"collectionURL\":\"https://access.redhat.com/downloads/content/package-browser/\",\"packageName\":\"pyOpenSSL\",\"cpes\":[\"cpe:/o:redhat:enterprise_linux:6\"]},{\"vendor\":\"Red Hat\",\"product\":\"Red Hat Enterprise Linux 7\",\"defaultStatus\":\"unaffected\",\"collectionURL\":\"https://access.redhat.com/downloads/content/package-browser/\",\"packageName\":\"pyOpenSSL\",\"cpes\":[\"cpe:/o:redhat:enterprise_linux:7\"]},{\"vendor\":\"Red Hat\",\"product\":\"Red Hat Enterprise Linux 8\",\"defaultStatus\":\"unaffected\",\"collectionURL\":\"https://access.redhat.com/downloads/content/package-browser/\",\"packageName\":\"pyOpenSSL\",\"cpes\":[\"cpe:/o:redhat:enterprise_linux:8\"]},{\"vendor\":\"Red Hat\",\"product\":\"Red Hat OpenShift AI (RHOAI)\",\"defaultStatus\":\"affected\",\"collectionURL\":\"https://access.redhat.com/downloads/content/package-browser/\",\"packageName\":\"rhoai/odh-feature-server-rhel9\",\"cpes\":[\"cpe:/a:redhat:openshift_ai\"]},{\"vendor\":\"Red Hat\",\"product\":\"Red Hat OpenShift AI (RHOAI)\",\"defaultStatus\":\"unaffected\",\"collectionURL\":\"https://access.redhat.com/downloads/content/package-browser/\",\"packageName\":\"rhoai/odh-mlflow-rhel9\",\"cpes\":[\"cpe:/a:redhat:openshift_ai\"]},{\"vendor\":\"Red Hat\",\"product\":\"Red Hat OpenShift Container Platform 4\",\"defaultStatus\":\"unaffected\",\"collectionURL\":\"https://access.redhat.com/downloads/content/package-browser/\",\"packageName\":\"pyOpenSSL\",\"cpes\":[\"cpe:/a:redhat:openshift:4\"]},{\"vendor\":\"Red Hat\",\"product\":\"Red Hat OpenStack Platform 17.1\",\"defaultStatus\":\"unaffected\",\"collectionURL\":\"https://access.redhat.com/downloads/content/package-browser/\",\"packageName\":\"pyOpenSSL\",\"cpes\":[\"cpe:/a:redhat:openstack:17.1\"]},{\"vendor\":\"Red Hat\",\"product\":\"Red Hat OpenStack Platform 18.0\",\"defaultStatus\":\"unaffected\",\"collectionURL\":\"https://access.redhat.com/downloads/content/package-browser/\",\"packageName\":\"pyOpenSSL\",\"cpes\":[\"cpe:/a:redhat:openstack:18.0\"]},{\"vendor\":\"Red Hat\",\"product\":\"Red Hat Satellite 6\",\"defaultStatus\":\"unaffected\",\"collectionURL\":\"https://access.redhat.com/downloads/content/package-browser/\",\"packageName\":\"satellite/iop-advisor-engine-rhel9\",\"cpes\":[\"cpe:/a:redhat:satellite:6\"]},{\"vendor\":\"Red Hat\",\"product\":\"Red Hat Satellite 6\",\"defaultStatus\":\"unaffected\",\"collectionURL\":\"https://access.redhat.com/downloads/content/package-browser/\",\"packageName\":\"satellite/iop-insights-engine-rhel9\",\"cpes\":[\"cpe:/a:redhat:satellite:6\"]}]}],\"metrics\":{\"cvssMetricV40\":[{\"source\":\"security-advisories@github.com\",\"type\":\"Secondary\",\"cvssData\":{\"version\":\"4.0\",\"vectorString\":\"CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X\",\"baseScore\":7.2,\"baseSeverity\":\"HIGH\",\"attackVector\":\"NETWORK\",\"attackComplexity\":\"HIGH\",\"attackRequirements\":\"PRESENT\",\"privilegesRequired\":\"NONE\",\"userInteraction\":\"NONE\",\"vulnConfidentialityImpact\":\"HIGH\",\"vulnIntegrityImpact\":\"HIGH\",\"vulnAvailabilityImpact\":\"HIGH\",\"subConfidentialityImpact\":\"NONE\",\"subIntegrityImpact\":\"NONE\",\"subAvailabilityImpact\":\"NONE\",\"exploitMaturity\":\"UNREPORTED\",\"confidentialityRequirement\":\"NOT_DEFINED\",\"integrityRequirement\":\"NOT_DEFINED\",\"availabilityRequirement\":\"NOT_DEFINED\",\"modifiedAttackVector\":\"NOT_DEFINED\",\"modifiedAttackComplexity\":\"NOT_DEFINED\",\"modifiedAttackRequirements\":\"NOT_DEFINED\",\"modifiedPrivilegesRequired\":\"NOT_DEFINED\",\"modifiedUserInteraction\":\"NOT_DEFINED\",\"modifiedVulnConfidentialityImpact\":\"NOT_DEFINED\",\"modifiedVulnIntegrityImpact\":\"NOT_DEFINED\",\"modifiedVulnAvailabilityImpact\":\"NOT_DEFINED\",\"modifiedSubConfidentialityImpact\":\"NOT_DEFINED\",\"modifiedSubIntegrityImpact\":\"NOT_DEFINED\",\"modifiedSubAvailabilityImpact\":\"NOT_DEFINED\",\"Safety\":\"NOT_DEFINED\",\"Automatable\":\"NOT_DEFINED\",\"Recovery\":\"NOT_DEFINED\",\"valueDensity\":\"NOT_DEFINED\",\"vulnerabilityResponseEffort\":\"NOT_DEFINED\",\"providerUrgency\":\"NOT_DEFINED\"}}],\"cvssMetricV31\":[{\"source\":\"nvd@nist.gov\",\"type\":\"Primary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H\",\"baseScore\":9.8,\"baseSeverity\":\"CRITICAL\",\"attackVector\":\"NETWORK\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"NONE\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"HIGH\",\"integrityImpact\":\"HIGH\",\"availabilityImpact\":\"HIGH\"},\"exploitabilityScore\":3.9,\"impactScore\":5.9},{\"source\":\"0b0ca135-0b70-47e7-9f44-1890c2a1c46c\",\"type\":\"Secondary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H\",\"baseScore\":8.1,\"baseSeverity\":\"HIGH\",\"attackVector\":\"NETWORK\",\"attackComplexity\":\"HIGH\",\"privilegesRequired\":\"NONE\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"HIGH\",\"integrityImpact\":\"HIGH\",\"availabilityImpact\":\"HIGH\"},\"exploitabilityScore\":2.2,\"impactScore\":5.9}],\"ssvcV203\":[{\"source\":\"134c704f-9b21-4f2e-91b3-4a467353bcc0\",\"ssvcData\":{\"timestamp\":\"2026-03-18T19:52:08.536876Z\",\"id\":\"CVE-2026-27459\",\"options\":[{\"exploitation\":\"none\"},{\"automatable\":\"no\"},{\"technicalImpact\":\"total\"}],\"role\":\"CISA Coordinator\",\"version\":\"2.0.3\"}}]},\"weaknesses\":[{\"source\":\"security-advisories@github.com\",\"type\":\"Secondary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-120\"}]},{\"source\":\"0b0ca135-0b70-47e7-9f44-1890c2a1c46c\",\"type\":\"Secondary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-120\"}]}],\"configurations\":[{\"nodes\":[{\"operator\":\"OR\",\"negate\":false,\"cpeMatch\":[{\"vulnerable\":true,\"criteria\":\"cpe:2.3:a:pyopenssl:pyopenssl:*:*:*:*:*:*:*:*\",\"versionStartIncluding\":\"22.0.0\",\"versionEndExcluding\":\"26.0.0\",\"matchCriteriaId\":\"36CBBDFE-83B3-4F32-98E6-49E62AD0BD1B\"}]}]}],\"references\":[{\"url\":\"https://github.com/pyca/pyopenssl/blob/358cbf29c4e364c59930e53a270116249581eaa3/CHANGELOG.rst\",\"source\":\"security-advisories@github.com\",\"tags\":[\"Release Notes\"]},{\"url\":\"https://github.com/pyca/pyopenssl/commit/57f09bb4bb051d3bc2a1abd36e9525313d5cd408\",\"source\":\"security-advisories@github.com\",\"tags\":[\"Patch\"]},{\"url\":\"https://github.com/pyca/pyopenssl/security/advisories/GHSA-5pwr-322w-8jr4\",\"source\":\"security-advisories@github.com\",\"tags\":[\"Vendor Advisory\"]},{\"url\":\"https://access.redhat.com/errata/RHSA-2026:10754\",\"source\":\"0b0ca135-0b70-47e7-9f44-1890c2a1c46c\"},{\"url\":\"https://access.redhat.com/errata/RHSA-2026:11856\",\"source\":\"0b0ca135-0b70-47e7-9f44-1890c2a1c46c\"},{\"url\":\"https://access.redhat.com/errata/RHSA-2026:11916\",\"source\":\"0b0ca135-0b70-47e7-9f44-1890c2a1c46c\"},{\"url\":\"https://access.redhat.com/errata/RHSA-2026:11996\",\"source\":\"0b0ca135-0b70-47e7-9f44-1890c2a1c46c\"},{\"url\":\"https://access.redhat.com/errata/RHSA-2026:13508\",\"source\":\"0b0ca135-0b70-47e7-9f44-1890c2a1c46c\"},{\"url\":\"https://access.redhat.com/errata/RHSA-2026:13512\",\"source\":\"0b0ca135-0b70-47e7-9f44-1890c2a1c46c\"},{\"url\":\"https://access.redhat.com/errata/RHSA-2026:13545\",\"source\":\"0b0ca135-0b70-47e7-9f44-1890c2a1c46c\"},{\"url\":\"https://access.redhat.com/errata/RHSA-2026:13553\",\"source\":\"0b0ca135-0b70-47e7-9f44-1890c2a1c46c\"},{\"url\":\"https://access.redhat.com/errata/RHSA-2026:14835\",\"source\":\"0b0ca135-0b70-47e7-9f44-1890c2a1c46c\"},{\"url\":\"https://access.redhat.com/errata/RHSA-2026:14873\",\"source\":\"0b0ca135-0b70-47e7-9f44-1890c2a1c46c\"},{\"url\":\"https://access.redhat.com/errata/RHSA-2026:14874\",\"source\":\"0b0ca135-0b70-47e7-9f44-1890c2a1c46c\"},{\"url\":\"https://access.redhat.com/errata/RHSA-2026:19375\",\"source\":\"0b0ca135-0b70-47e7-9f44-1890c2a1c46c\"},{\"url\":\"https://access.redhat.com/errata/RHSA-2026:21017\",\"source\":\"0b0ca135-0b70-47e7-9f44-1890c2a1c46c\"},{\"url\":\"https://access.redhat.com/errata/RHSA-2026:22465\",\"source\":\"0b0ca135-0b70-47e7-9f44-1890c2a1c46c\"},{\"url\":\"https://access.redhat.com/errata/RHSA-2026:24853\",\"source\":\"0b0ca135-0b70-47e7-9f44-1890c2a1c46c\"},{\"url\":\"https://access.redhat.com/errata/RHSA-2026:7224\",\"source\":\"0b0ca135-0b70-47e7-9f44-1890c2a1c46c\"},{\"url\":\"https://access.redhat.com/errata/RHSA-2026:8437\",\"source\":\"0b0ca135-0b70-47e7-9f44-1890c2a1c46c\"},{\"url\":\"https://access.redhat.com/security/cve/CVE-2026-27459\",\"source\":\"0b0ca135-0b70-47e7-9f44-1890c2a1c46c\"},{\"url\":\"https://bugzilla.redhat.com/show_bug.cgi?id=2448503\",\"source\":\"0b0ca135-0b70-47e7-9f44-1890c2a1c46c\"},{\"url\":\"https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-27459.json\",\"source\":\"0b0ca135-0b70-47e7-9f44-1890c2a1c46c\"}]}}",
"redhat_vex": {
"aggregate_severity": "Important",
"current_release_date": "2026-07-19T14:17:47+00:00",
"cve": "CVE-2026-27459",
"id": "CVE-2026-27459",
"initial_release_date": "2026-03-17T23:34:28.483000+00:00",
"product_status:fixed": "99",
"product_status:known_affected": "7",
"product_status:known_not_affected": "1444",
"source": "Red Hat CSAF VEX",
"status": "final",
"title": "pyOpenSSL: DTLS cookie callback buffer overflow",
"url": "https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-27459.json",
"version": "3"
},
"suse_vex": {
"aggregate_severity": "important",
"current_release_date": "2026-07-17T12:59:58Z",
"cve": "CVE-2026-27459",
"id": "CVE-2026-27459",
"initial_release_date": "2026-03-19T00:26:05Z",
"product_status:known_affected": "410",
"product_status:known_not_affected": "52",
"product_status:recommended": "42",
"source": "SUSE CSAF VEX",
"status": "interim",
"title": "SUSE CVE CVE-2026-27459",
"url": "https://ftp.suse.com/pub/projects/security/csaf-vex/cve-2026-27459.json",
"version": "21"
},
"vulnrichment": {
"containers": "{\"adp\": [{\"title\": \"pyOpenSSL: DTLS cookie callback buffer overflow\", \"metrics\": [{\"other\": {\"type\": \"Red Hat severity rating\", \"content\": {\"value\": \"Important\", \"namespace\": \"https://access.redhat.com/security/updates/classification/\"}}}, {\"format\": \"CVSS\", \"cvssV3_1\": {\"scope\": \"UNCHANGED\", \"version\": \"3.1\", \"baseScore\": 8.1, \"attackVector\": \"NETWORK\", \"baseSeverity\": \"HIGH\", \"vectorString\": \"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H\", \"integrityImpact\": \"HIGH\", \"userInteraction\": \"NONE\", \"attackComplexity\": \"HIGH\", \"availabilityImpact\": \"HIGH\", \"privilegesRequired\": \"NONE\", \"confidentialityImpact\": \"HIGH\"}}], \"affected\": [{\"cpes\": [\"cpe:/a:redhat:ansible_automation_platform:2.5::el8\"], \"vendor\": \"Red Hat\", \"product\": \"Red Hat Ansible Automation Platform 2.5 for RHEL 8\", \"versions\": [{\"status\": \"unaffected\", \"version\": \"0:26.0.0-1.el8ap\", \"lessThan\": \"*\", \"versionType\": \"rpm\"}], \"packageName\": \"python3.12-pyOpenSSL\", \"collectionURL\": \"https://access.redhat.com/downloads/content/package-browser/\", \"defaultStatus\": \"affected\"}, {\"cpes\": [\"cpe:/a:redhat:ansible_automation_platform:2.5::el9\"], \"vendor\": \"Red Hat\", \"product\": \"Red Hat Ansible Automation Platform 2.5 for RHEL 9\", \"versions\": [{\"status\": \"unaffected\", \"version\": \"0:26.0.0-1.el9ap\", \"lessThan\": \"*\", \"versionType\": \"rpm\"}], \"packageName\": \"python3.12-pyOpenSSL\", \"collectionURL\": \"https://access.redhat.com/downloads/content/package-browser/\", \"defaultStatus\": \"affected\"}, {\"cpes\": [\"cpe:/a:redhat:ansible_automation_platform:2.6::el9\"], \"vendor\": \"Red Hat\", \"product\": \"Red Hat Ansible Automation Platform 2.6 for RHEL 9\", \"versions\": [{\"status\": \"unaffected\", \"version\": \"0:4.7.11-2.el9ap\", \"lessThan\": \"*\", \"versionType\": \"rpm\"}], \"packageName\": \"automation-controller\", \"collectionURL\": \"https://access.redhat.com/downloads/content/package-browser/\", \"defaultStatus\": \"affected\"}, {\"cpes\": [\"cpe:/a:redhat:ansible_automation_platform:2.6::el9\"], \"vendor\": \"Red Hat\", \"product\": \"Red Hat Ansible Automation Platform 2.6 for RHEL 9\", \"versions\": [{\"status\": \"unaffected\", \"version\": \"0:26.0.0-1.el9ap\", \"lessThan\": \"*\", \"versionType\": \"rpm\"}], \"packageName\": \"python3.12-pyOpenSSL\", \"collectionURL\": \"https://access.redhat.com/downloads/content/package-browser/\", \"defaultStatus\": \"affected\"}, {\"cpes\": [\"cpe:/a:redhat:satellite:6.16::el8\", \"cpe:/a:redhat:satellite_capsule:6.16::el8\"], \"vendor\": \"Red Hat\", \"product\": \"Red Hat Satellite 6.16 for RHEL 8\", \"versions\": [{\"status\": \"unaffected\", \"version\": \"0:24.1.0-2.el8pc\", \"lessThan\": \"*\", \"versionType\": \"rpm\"}], \"packageName\": \"python-pyOpenSSL\", \"collectionURL\": \"https://access.redhat.com/downloads/content/package-browser/\", \"defaultStatus\": \"affected\"}, {\"cpes\": [\"cpe:/a:redhat:satellite:6.16::el9\", \"cpe:/a:redhat:satellite_capsule:6.16::el9\"], \"vendor\": \"Red Hat\", \"product\": \"Red Hat Satellite 6.16 for RHEL 9\", \"versions\": [{\"status\": \"unaffected\", \"version\": \"0:24.1.0-2.el9pc\", \"lessThan\": \"*\", \"versionType\": \"rpm\"}], \"packageName\": \"python-pyOpenSSL\", \"collectionURL\": \"https://access.redhat.com/downloads/content/package-browser/\", \"defaultStatus\": \"affected\"}, {\"cpes\": [\"cpe:/a:redhat:satellite:6.17::el9\", \"cpe:/a:redhat:satellite_capsule:6.17::el9\"], \"vendor\": \"Red Hat\", \"product\": \"Red Hat Satellite 6.17 for RHEL 9\", \"versions\": [{\"status\": \"unaffected\", \"version\": \"0:25.1.0-0.3.el9pc\", \"lessThan\": \"*\", \"versionType\": \"rpm\"}], \"packageName\": \"python-pyOpenSSL\", \"collectionURL\": \"https://access.redhat.com/downloads/content/package-browser/\", \"defaultStatus\": \"affected\"}, {\"cpes\": [\"cpe:/a:redhat:satellite:6.18::el9\", \"cpe:/a:redhat:satellite_capsule:6.18::el9\"], \"vendor\": \"Red Hat\", \"product\": \"Red Hat Satellite 6.18 for RHEL 9\", \"versions\": [{\"status\": \"unaffected\", \"version\": \"0:26.0.0-2.el9pc\", \"lessThan\": \"*\", \"versionType\": \"rpm\"}], \"packageName\": \"python3.12-pyOpenSSL\", \"collectionURL\": \"https://access.redhat.com/downloads/content/package-browser/\", \"defaultStatus\": \"affected\"}, {\"cpes\": [\"cpe:/a:redhat:rhui:4::el8\"], \"vendor\": \"Red Hat\", \"product\": \"RHUI 4 for RHEL 8\", \"versions\": [{\"status\": \"unaffected\", \"version\": \"0:24.1.0-2.el8ui\", \"lessThan\": \"*\", \"versionType\": \"rpm\"}], \"packageName\": \"python-pyOpenSSL\", \"collectionURL\": \"https://access.redhat.com/downloads/content/package-browser/\", \"defaultStatus\": \"affected\"}, {\"cpes\": [\"cpe:/a:redhat:ansible_automation_platform:2.5::el8\"], \"vendor\": \"Red Hat\", \"product\": \"Red Hat Ansible Automation Platform 2.5\", \"versions\": [{\"status\": \"unaffected\", \"version\": \"1777398315\", \"lessThan\": \"*\", \"versionType\": \"rpm\"}], \"packageName\": \"ansible-automation-platform-25/ee-supported-rhel8\", \"collectionURL\": \"https://catalog.redhat.com/software/containers/\", \"defaultStatus\": \"affected\"}, {\"cpes\": [\"cpe:/a:redhat:ansible_automation_platform:2.5::el8\"], \"vendor\": \"Red Hat\", \"product\": \"Red Hat Ansible Automation Platform 2.5\", \"versions\": [{\"status\": \"unaffected\", \"version\": \"1777403872\", \"lessThan\": \"*\", \"versionType\": \"rpm\"}], \"packageName\": \"ansible-automation-platform-25/lightspeed-rhel8\", \"collectionURL\": \"https://catalog.redhat.com/software/containers/\", \"defaultStatus\": \"affected\"}, {\"cpes\": [\"cpe:/a:redhat:ansible_automation_platform:2.6::el9\"], \"vendor\": \"Red Hat\", \"product\": \"Red Hat Ansible Automation Platform 2.6\", \"versions\": [{\"status\": \"unaffected\", \"version\": \"1777390240\", \"lessThan\": \"*\", \"versionType\": \"rpm\"}], \"packageName\": \"ansible-automation-platform-26/ansible-dev-tools-rhel9\", \"collectionURL\": \"https://catalog.redhat.com/software/containers/\", \"defaultStatus\": \"affected\"}, {\"cpes\": [\"cpe:/a:redhat:ansible_automation_platform:2.6::el9\"], \"vendor\": \"Red Hat\", \"product\": \"Red Hat Ansible Automation Platform 2.6\", \"versions\": [{\"status\": \"unaffected\", \"version\": \"1777296732\", \"lessThan\": \"*\", \"versionType\": \"rpm\"}], \"packageName\": \"ansible-automation-platform-26/eda-controller-rhel9\", \"collectionURL\": \"https://catalog.redhat.com/software/containers/\", \"defaultStatus\": \"affected\"}, {\"cpes\": [\"cpe:/a:redhat:ansible_automation_platform:2.6::el9\"], \"vendor\": \"Red Hat\", \"product\": \"Red Hat Ansible Automation Platform 2.6\", \"versions\": [{\"status\": \"unaffected\", \"version\": \"1777391447\", \"lessThan\": \"*\", \"versionType\": \"rpm\"}], \"packageName\": \"ansible-automation-platform-26/ee-supported-rhel9\", \"collectionURL\": \"https://catalog.redhat.com/software/containers/\", \"defaultStatus\": \"affected\"}, {\"cpes\": [\"cpe:/a:redhat:ansible_automation_platform:2.6::el9\"], \"vendor\": \"Red Hat\", \"product\": \"Red Hat Ansible Automation Platform 2.6\", \"versions\": [{\"status\": \"unaffected\", \"version\": \"1777299023\", \"lessThan\": \"*\", \"versionType\": \"rpm\"}], \"packageName\": \"ansible-automation-platform-26/hub-rhel9\", \"collectionURL\": \"https://catalog.redhat.com/software/containers/\", \"defaultStatus\": \"affected\"}, {\"cpes\": [\"cpe:/a:redhat:ansible_automation_platform:2.6::el9\"], \"vendor\": \"Red Hat\", \"product\": \"Red Hat Ansible Automation Platform 2.6\", \"versions\": [{\"status\": \"unaffected\", \"version\": \"1777387242\", \"lessThan\": \"*\", \"versionType\": \"rpm\"}], \"packageName\": \"ansible-automation-platform-26/lightspeed-rhel9\", \"collectionURL\": \"https://catalog.redhat.com/software/containers/\", \"defaultStatus\": \"affected\"}, {\"cpes\": [\"cpe:/a:redhat:ansible_automation_platform:2.6::el9\"], \"vendor\": \"Red Hat\", \"product\": \"Red Hat Ansible Automation Platform 2.6\", \"versions\": [{\"status\": \"unaffected\", \"version\": \"1777390333\", \"lessThan\": \"*\", \"versionType\": \"rpm\"}], \"packageName\": \"ansible-automation-platform-26/platform-resource-runner-rhel9\", \"collectionURL\": \"https://catalog.redhat.com/software/containers/\", \"defaultStatus\": \"affected\"}, {\"cpes\": [\"cpe:/a:redhat:hummingbird:1\"], \"vendor\": \"Red Hat\", \"product\": \"Red Hat Hardened Images\", \"versions\": [{\"status\": \"unaffected\", \"version\": \"26.0.0-1.1.hum1\", \"lessThan\": \"*\", \"versionType\": \"rpm\"}], \"packageName\": \"pyopenssl-main\", \"collectionURL\": \"https://access.redhat.com/downloads/content/package-browser/\", \"defaultStatus\": \"affected\"}, {\"cpes\": [\"cpe:/a:redhat:quay:3.10::el8\"], \"vendor\": \"Red Hat\", \"product\": \"Red Hat Quay 3.1\", \"versions\": [{\"status\": \"unaffected\", \"version\": \"1776736910\", \"lessThan\": \"*\", \"versionType\": \"rpm\"}], \"packageName\": \"quay/quay-rhel8\", \"collectionURL\": \"https://catalog.redhat.com/software/containers/\", \"defaultStatus\": \"affected\"}, {\"cpes\": [\"cpe:/a:redhat:quay:3.12::el8\"], \"vendor\": \"Red Hat\", \"product\": \"Red Hat Quay 3.12\", \"versions\": [{\"status\": \"unaffected\", \"version\": \"1776752646\", \"lessThan\": \"*\", \"versionType\": \"rpm\"}], \"packageName\": \"quay/quay-rhel8\", \"collectionURL\": \"https://catalog.redhat.com/software/containers/\", \"defaultStatus\": \"affected\"}, {\"cpes\": [\"cpe:/a:redhat:quay:3.14::el8\"], \"vendor\": \"Red Hat\", \"product\": \"Red Hat Quay 3.14\", \"versions\": [{\"status\": \"unaffected\", \"version\": \"1779689392\", \"lessThan\": \"*\", \"versionType\": \"rpm\"}], \"packageName\": \"quay/quay-rhel8\", \"collectionURL\": \"https://catalog.redhat.com/software/containers/\", \"defaultStatus\": \"affected\"}, {\"cpes\": [\"cpe:/a:redhat:quay:3.15::el8\"], \"vendor\": \"Red Hat\", \"product\": \"Red Hat Quay 3.15\", \"versions\": [{\"status\": \"unaffected\", \"version\": \"1780891395\", \"lessThan\": \"*\", \"versionType\": \"rpm\"}], \"packageName\": \"quay/quay-rhel8\", \"collectionURL\": \"https://catalog.redhat.com/software/containers/\", \"defaultStatus\": \"affected\"}, {\"cpes\": [\"cpe:/a:redhat:quay:3.16::el9\"], \"vendor\": \"Red Hat\", \"product\": \"Red Hat Quay 3.16\", \"versions\": [{\"status\": \"unaffected\", \"version\": \"1779204086\", \"lessThan\": \"*\", \"versionType\": \"rpm\"}], \"packageName\": \"quay/quay-rhel9\", \"collectionURL\": \"https://catalog.redhat.com/software/containers/\", \"defaultStatus\": \"affected\"}, {\"cpes\": [\"cpe:/a:redhat:quay:3.17::el9\"], \"vendor\": \"Red Hat\", \"product\": \"Red Hat Quay 3.17\", \"versions\": [{\"status\": \"unaffected\", \"version\": \"1779922205\", \"lessThan\": \"*\", \"versionType\": \"rpm\"}], \"packageName\": \"quay/quay-rhel9\", \"collectionURL\": \"https://catalog.redhat.com/software/containers/\", \"defaultStatus\": \"affected\"}, {\"cpes\": [\"cpe:/a:redhat:quay:3.9::el8\"], \"vendor\": \"Red Hat\", \"product\": \"Red Hat Quay 3.9\", \"versions\": [{\"status\": \"unaffected\", \"version\": \"1776782369\", \"lessThan\": \"*\", \"versionType\": \"rpm\"}], \"packageName\": \"quay/quay-rhel8\", \"collectionURL\": \"https://catalog.redhat.com/software/containers/\", \"defaultStatus\": \"affected\"}, {\"cpes\": [\"cpe:/a:redhat:trusted_artifact_signer:1.4::el9\"], \"vendor\": \"Red Hat\", \"product\": \"Red Hat Trusted Artifact Signer 1.4\", \"versions\": [{\"status\": \"unaffected\", \"version\": \"1775815407\", \"lessThan\": \"*\", \"versionType\": \"rpm\"}], \"packageName\": \"rhtas/model-transparency-rhel9\", \"collectionURL\": \"https://catalog.redhat.com/software/containers/\", \"defaultStatus\": \"affected\"}, {\"cpes\": [\"cpe:/a:redhat:ansible_automation_platform:2\"], \"vendor\": \"Red Hat\", \"product\": \"Red Hat Ansible Automation Platform 2\", \"packageName\": \"ansible-automation-platform-26/controller-rhel9\", \"collectionURL\": \"https://access.redhat.com/downloads/content/package-browser/\", \"defaultStatus\": \"affected\"}, {\"cpes\": [\"cpe:/a:redhat:ansible_automation_platform:2\"], \"vendor\": \"Red Hat\", \"product\": \"Red Hat Ansible Automation Platform 2\", \"packageName\": \"ansible-automation-platform-26/ee-minimal-rhel9\", \"collectionURL\": \"https://access.redhat.com/downloads/content/package-browser/\", \"defaultStatus\": \"affected\"}, {\"cpes\": [\"cpe:/a:redhat:ansible_automation_platform:2\"], \"vendor\": \"Red Hat\", \"product\": \"Red Hat Ansible Automation Platform 2\", \"packageName\": \"python3.11-pyOpenSSL\", \"collectionURL\": \"https://access.redhat.com/downloads/content/package-browser/\", \"defaultStatus\": \"unaffected\"}, {\"cpes\": [\"cpe:/a:redhat:ansible_automation_platform:2\"], \"vendor\": \"Red Hat\", \"product\": \"Red Hat Ansible Automation Platform 2\", \"packageName\": \"python3x-pyOpenSSL\", \"collectionURL\": \"https://access.redhat.com/downloads/content/package-browser/\", \"defaultStatus\": \"unaffected\"}, {\"cpes\": [\"cpe:/a:redhat:ansible_automation_platform:2\"], \"vendor\": \"Red Hat\", \"product\": \"Red Hat Ansible Automation Platform 2\", \"packageName\": \"python-pyOpenSSL\", \"collectionURL\": \"https://access.redhat.com/downloads/content/package-browser/\", \"defaultStatus\": \"unaffected\"}, {\"cpes\": [\"cpe:/a:redhat:ansible_core:2\"], \"vendor\": \"Red Hat\", \"product\": \"Red Hat Ansible Automation Platform Ansible Core 2\", \"packageName\": \"ansible-automation-platform/ee-minimal-rhel8\", \"collectionURL\": \"https://access.redhat.com/downloads/content/package-browser/\", \"defaultStatus\": \"affected\"}, {\"cpes\": [\"cpe:/a:redhat:ansible_core:2\"], \"vendor\": \"Red Hat\", \"product\": \"Red Hat Ansible Automation Platform Ansible Core 2\", \"packageName\": \"ansible-automation-platform/ee-minimal-rhel9\", \"collectionURL\": \"https://access.redhat.com/downloads/content/package-browser/\", \"defaultStatus\": \"affected\"}, {\"cpes\": [\"cpe:/a:redhat:ansible_core:2\"], \"vendor\": \"Red Hat\", \"product\": \"Red Hat Ansible Automation Platform Ansible Core 2\", \"packageName\": \"ansible-automation-platform-tech-preview/ee-minimal-rhel8\", \"collectionURL\": \"https://access.redhat.com/downloads/content/package-browser/\", \"defaultStatus\": \"affected\"}, {\"cpes\": [\"cpe:/a:redhat:ansible_core:2\"], \"vendor\": \"Red Hat\", \"product\": \"Red Hat Ansible Automation Platform Ansible Core 2\", \"packageName\": \"ansible-automation-platform-tech-preview/ee-minimal-rhel9\", \"collectionURL\": \"https://access.redhat.com/downloads/content/package-browser/\", \"defaultStatus\": \"affected\"}, {\"cpes\": [\"cpe:/o:redhat:enterprise_linux:6\"], \"vendor\": \"Red Hat\", \"product\": \"Red Hat Enterprise Linux 6\", \"packageName\": \"pyOpenSSL\", \"collectionURL\": \"https://access.redhat.com/downloads/content/package-browser/\", \"defaultStatus\": \"unaffected\"}, {\"cpes\": [\"cpe:/o:redhat:enterprise_linux:7\"], \"vendor\": \"Red Hat\", \"product\": \"Red Hat Enterprise Linux 7\", \"packageName\": \"pyOpenSSL\", \"collectionURL\": \"https://access.redhat.com/downloads/content/package-browser/\", \"defaultStatus\": \"unaffected\"}, {\"cpes\": [\"cpe:/o:redhat:enterprise_linux:8\"], \"vendor\": \"Red Hat\", \"product\": \"Red Hat Enterprise Linux 8\", \"packageName\": \"pyOpenSSL\", \"collectionURL\": \"https://access.redhat.com/downloads/content/package-browser/\", \"defaultStatus\": \"unaffected\"}, {\"cpes\": [\"cpe:/a:redhat:openshift_ai\"], \"vendor\": \"Red Hat\", \"product\": \"Red Hat OpenShift AI (RHOAI)\", \"packageName\": \"rhoai/odh-feature-server-rhel9\", \"collectionURL\": \"https://access.redhat.com/downloads/content/package-browser/\", \"defaultStatus\": \"affected\"}, {\"cpes\": [\"cpe:/a:redhat:openshift_ai\"], \"vendor\": \"Red Hat\", \"product\": \"Red Hat OpenShift AI (RHOAI)\", \"packageName\": \"rhoai/odh-mlflow-rhel9\", \"collectionURL\": \"https://access.redhat.com/downloads/content/package-browser/\", \"defaultStatus\": \"unaffected\"}, {\"cpes\": [\"cpe:/a:redhat:openshift:4\"], \"vendor\": \"Red Hat\", \"product\": \"Red Hat OpenShift Container Platform 4\", \"packageName\": \"pyOpenSSL\", \"collectionURL\": \"https://access.redhat.com/downloads/content/package-browser/\", \"defaultStatus\": \"unaffected\"}, {\"cpes\": [\"cpe:/a:redhat:openstack:17.1\"], \"vendor\": \"Red Hat\", \"product\": \"Red Hat OpenStack Platform 17.1\", \"packageName\": \"pyOpenSSL\", \"collectionURL\": \"https://access.redhat.com/downloads/content/package-browser/\", \"defaultStatus\": \"unaffected\"}, {\"cpes\": [\"cpe:/a:redhat:openstack:18.0\"], \"vendor\": \"Red Hat\", \"product\": \"Red Hat OpenStack Platform 18.0\", \"packageName\": \"pyOpenSSL\", \"collectionURL\": \"https://access.redhat.com/downloads/content/package-browser/\", \"defaultStatus\": \"unaffected\"}, {\"cpes\": [\"cpe:/a:redhat:satellite:6\"], \"vendor\": \"Red Hat\", \"product\": \"Red Hat Satellite 6\", \"packageName\": \"satellite/iop-advisor-engine-rhel9\", \"collectionURL\": \"https://access.redhat.com/downloads/content/package-browser/\", \"defaultStatus\": \"unaffected\"}, {\"cpes\": [\"cpe:/a:redhat:satellite:6\"], \"vendor\": \"Red Hat\", \"product\": \"Red Hat Satellite 6\", \"packageName\": \"satellite/iop-insights-engine-rhel9\", \"collectionURL\": \"https://access.redhat.com/downloads/content/package-browser/\", \"defaultStatus\": \"unaffected\"}], \"timeline\": [{\"lang\": \"en\", \"time\": \"2026-03-18T00:01:41.404Z\", \"value\": \"Reported to Red Hat.\"}, {\"lang\": \"en\", \"time\": \"2026-03-17T23:34:28.483Z\", \"value\": \"Made public.\"}], \"solutions\": [{\"lang\": \"en\", \"value\": \"RHSA-2026:13512: Red Hat Ansible Automation Platform 2.5 for RHEL 8, Red Hat Ansible Automation Platform 2.5 for RHEL 9\"}, {\"lang\": \"en\", \"value\": \"RHSA-2026:10754: RHUI 4 for RHEL 8\"}, {\"lang\": \"en\", \"value\": \"RHSA-2026:14874: Red Hat Satellite 6.16 for RHEL 8, Red Hat Satellite 6.16 for RHEL 9\"}, {\"lang\": \"en\", \"value\": \"RHSA-2026:13508: Red Hat Ansible Automation Platform 2.6 for RHEL 9\"}, {\"lang\": \"en\", \"value\": \"RHSA-2026:14873: Red Hat Satellite 6.17 for RHEL 9\"}, {\"lang\": \"en\", \"value\": \"RHSA-2026:14835: Red Hat Satellite 6.18 for RHEL 9\"}, {\"lang\": \"en\", \"value\": \"RHSA-2026:13553: Red Hat Ansible Automation Platform 2.5\"}, {\"lang\": \"en\", \"value\": \"RHSA-2026:13545: Red Hat Ansible Automation Platform 2.6\"}, {\"lang\": \"en\", \"value\": \"RHSA-2026:7224: Red Hat Hardened Images\"}, {\"lang\": \"en\", \"value\": \"RHSA-2026:11856: Red Hat Quay 3.12\"}, {\"lang\": \"en\", \"value\": \"RHSA-2026:21017: Red Hat Quay 3.14\"}, {\"lang\": \"en\", \"value\": \"RHSA-2026:24853: Red Hat Quay 3.15\"}, {\"lang\": \"en\", \"value\": \"RHSA-2026:19375: Red Hat Quay 3.16\"}, {\"lang\": \"en\", \"value\": \"RHSA-2026:22465: Red Hat Quay 3.17\"}, {\"lang\": \"en\", \"value\": \"RHSA-2026:11916: Red Hat Quay 3.1\"}, {\"lang\": \"en\", \"value\": \"RHSA-2026:11996: Red Hat Quay 3.9\"}, {\"lang\": \"en\", \"value\": \"RHSA-2026:8437: Red Hat Trusted Artifact Signer 1.4\"}], \"x_adpType\": \"supplier\", \"datePublic\": \"2026-03-17T23:34:28.483Z\", \"references\": [{\"url\": \"https://access.redhat.com/security/cve/CVE-2026-27459\", \"tags\": [\"vdb-entry\", \"x_refsource_REDHAT\"]}, {\"url\": \"https://bugzilla.redhat.com/show_bug.cgi?id=2448503\", \"name\": \"RHBZ#2448503\", \"tags\": [\"issue-tracking\", \"x_refsource_REDHAT\"]}, {\"url\": \"https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-27459.json\", \"tags\": [\"x_sadp-csaf-vex\"]}, {\"url\": \"https://access.redhat.com/errata/RHSA-2026:13512\", \"tags\": [\"vendor-advisory\", \"x_refsource_REDHAT\"]}, {\"url\": \"https://access.redhat.com/errata/RHSA-2026:10754\", \"tags\": [\"vendor-advisory\", \"x_refsource_REDHAT\"]}, {\"url\": \"https://access.redhat.com/errata/RHSA-2026:14874\", \"tags\": [\"vendor-advisory\", \"x_refsource_REDHAT\"]}, {\"url\": \"https://access.redhat.com/errata/RHSA-2026:13508\", \"tags\": [\"vendor-advisory\", \"x_refsource_REDHAT\"]}, {\"url\": \"https://access.redhat.com/errata/RHSA-2026:14873\", \"tags\": [\"vendor-advisory\", \"x_refsource_REDHAT\"]}, {\"url\": \"https://access.redhat.com/errata/RHSA-2026:14835\", \"tags\": [\"vendor-advisory\", \"x_refsource_REDHAT\"]}, {\"url\": \"https://access.redhat.com/errata/RHSA-2026:13553\", \"tags\": [\"vendor-advisory\", \"x_refsource_REDHAT\"]}, {\"url\": \"https://access.redhat.com/errata/RHSA-2026:13545\", \"tags\": [\"vendor-advisory\", \"x_refsource_REDHAT\"]}, {\"url\": \"https://access.redhat.com/errata/RHSA-2026:7224\", \"tags\": [\"vendor-advisory\", \"x_refsource_REDHAT\"]}, {\"url\": \"https://access.redhat.com/errata/RHSA-2026:11856\", \"tags\": [\"vendor-advisory\", \"x_refsource_REDHAT\"]}, {\"url\": \"https://access.redhat.com/errata/RHSA-2026:21017\", \"tags\": [\"vendor-advisory\", \"x_refsource_REDHAT\"]}, {\"url\": \"https://access.redhat.com/errata/RHSA-2026:24853\", \"tags\": [\"vendor-advisory\", \"x_refsource_REDHAT\"]}, {\"url\": \"https://access.redhat.com/errata/RHSA-2026:19375\", \"tags\": [\"vendor-advisory\", \"x_refsource_REDHAT\"]}, {\"url\": \"https://access.redhat.com/errata/RHSA-2026:22465\", \"tags\": [\"vendor-advisory\", \"x_refsource_REDHAT\"]}, {\"url\": \"https://access.redhat.com/errata/RHSA-2026:11916\", \"tags\": [\"vendor-advisory\", \"x_refsource_REDHAT\"]}, {\"url\": \"https://access.redhat.com/errata/RHSA-2026:11996\", \"tags\": [\"vendor-advisory\", \"x_refsource_REDHAT\"]}, {\"url\": \"https://access.redhat.com/errata/RHSA-2026:8437\", \"tags\": [\"vendor-advisory\", \"x_refsource_REDHAT\"]}], \"workarounds\": [{\"lang\": \"en\", \"value\": \"To mitigate this flaw, ensure the callback provided to the set_cookie_generate_callback function strictly limits the returned cookie string or byte sequence to under 256 bytes.\"}], \"x_generator\": {\"engine\": \"sadp-cli 1.0.0\"}, \"descriptions\": [{\"lang\": \"en\", \"value\": \"A flaw was found in pyOpenSSL. The set_cookie_generate_callback callback function can be used to generate DTLS cookies. When the callback returns a cookie string or byte sequence longer than 256 bytes, a buffer overflow can be triggered due to a missing bounds checking before copying the data to a fixed-size buffer provided by the underlying OpenSSL library.\"}], \"problemTypes\": [{\"descriptions\": [{\"lang\": \"en\", \"type\": \"CWE\", \"cweId\": \"CWE-120\", \"description\": \"Buffer Copy without Checking Size of Input (\u0027Classic Buffer Overflow\u0027)\"}]}], \"providerMetadata\": {\"orgId\": \"0b0ca135-0b70-47e7-9f44-1890c2a1c46c\", \"shortName\": \"redhat-SADP\", \"dateUpdated\": \"2026-07-20T12:04:52.880Z\"}}, {\"title\": \"CISA ADP Vulnrichment\", \"metrics\": [{\"other\": {\"type\": \"ssvc\", \"content\": {\"id\": \"CVE-2026-27459\", \"role\": \"CISA Coordinator\", \"options\": [{\"Exploitation\": \"none\"}, {\"Automatable\": \"no\"}, {\"Technical Impact\": \"total\"}], \"version\": \"2.0.3\", \"timestamp\": \"2026-03-18T19:52:08.536876Z\"}}}], \"providerMetadata\": {\"orgId\": \"134c704f-9b21-4f2e-91b3-4a467353bcc0\", \"shortName\": \"CISA-ADP\", \"dateUpdated\": \"2026-03-18T19:52:12.530Z\"}}], \"cna\": {\"title\": \"pyOpenSSL DTLS cookie callback buffer overflow\", \"source\": {\"advisory\": \"GHSA-5pwr-322w-8jr4\", \"discovery\": \"UNKNOWN\"}, \"metrics\": [{\"cvssV4_0\": {\"version\": \"4.0\", \"baseScore\": 7.2, \"attackVector\": \"NETWORK\", \"baseSeverity\": \"HIGH\", \"vectorString\": \"CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U\", \"userInteraction\": \"NONE\", \"attackComplexity\": \"HIGH\", \"attackRequirements\": \"PRESENT\", \"privilegesRequired\": \"NONE\", \"subIntegrityImpact\": \"NONE\", \"vulnIntegrityImpact\": \"HIGH\", \"subAvailabilityImpact\": \"NONE\", \"vulnAvailabilityImpact\": \"HIGH\", \"subConfidentialityImpact\": \"NONE\", \"vulnConfidentialityImpact\": \"HIGH\"}}], \"affected\": [{\"vendor\": \"pyca\", \"product\": \"pyopenssl\", \"versions\": [{\"status\": \"affected\", \"version\": \"\u003e= 22.0.0, \u003c 26.0.0\"}]}], \"references\": [{\"url\": \"https://github.com/pyca/pyopenssl/security/advisories/GHSA-5pwr-322w-8jr4\", \"name\": \"https://github.com/pyca/pyopenssl/security/advisories/GHSA-5pwr-322w-8jr4\", \"tags\": [\"x_refsource_CONFIRM\"]}, {\"url\": \"https://github.com/pyca/pyopenssl/commit/57f09bb4bb051d3bc2a1abd36e9525313d5cd408\", \"name\": \"https://github.com/pyca/pyopenssl/commit/57f09bb4bb051d3bc2a1abd36e9525313d5cd408\", \"tags\": [\"x_refsource_MISC\"]}, {\"url\": \"https://github.com/pyca/pyopenssl/blob/358cbf29c4e364c59930e53a270116249581eaa3/CHANGELOG.rst\", \"name\": \"https://github.com/pyca/pyopenssl/blob/358cbf29c4e364c59930e53a270116249581eaa3/CHANGELOG.rst\", \"tags\": [\"x_refsource_MISC\"]}], \"descriptions\": [{\"lang\": \"en\", \"value\": \"pyOpenSSL is a Python wrapper around the OpenSSL library. Starting in version 22.0.0 and prior to version 26.0.0, if a user provided callback to `set_cookie_generate_callback` returned a cookie value greater than 256 bytes, pyOpenSSL would overflow an OpenSSL provided buffer. Starting in version 26.0.0, cookie values that are too long are now rejected.\"}], \"problemTypes\": [{\"descriptions\": [{\"lang\": \"en\", \"type\": \"CWE\", \"cweId\": \"CWE-120\", \"description\": \"CWE-120: Buffer Copy without Checking Size of Input (\u0027Classic Buffer Overflow\u0027)\"}]}], \"providerMetadata\": {\"orgId\": \"a0819718-46f1-4df5-94e2-005712e83aaa\", \"shortName\": \"GitHub_M\", \"dateUpdated\": \"2026-03-17T23:34:28.483Z\"}}}",
"cveMetadata": "{\"cveId\": \"CVE-2026-27459\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2026-07-20T12:04:52.880Z\", \"dateReserved\": \"2026-02-19T17:25:31.100Z\", \"assignerOrgId\": \"a0819718-46f1-4df5-94e2-005712e83aaa\", \"datePublished\": \"2026-03-17T23:34:28.483Z\", \"assignerShortName\": \"GitHub_M\"}",
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
}
}
Loading…
Loading…
Experimental. This forecast is provided for visualization only and may change without notice. Do not use it for operational decisions.
Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.
Sightings
| Author | Source | Type | Date | Other |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or observed by the user.
- Confirmed: The vulnerability has been validated from an analyst's perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
- Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
- Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
- Not confirmed: The user expressed doubt about the validity of the vulnerability.
- Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
Loading…
The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the
vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base
model, served locally by ML-Gateway.
They have not been verified by an analyst and are provided for guidance only.
Loading…
Loading…