RHSA-2026:1958
Vulnerability from csaf_redhat - Published: 2026-02-13 04:28 - Updated: 2026-03-19 17:36Summary
Red Hat Security Advisory: Red Hat OpenStack Services on OpenShift 18.0 (openstack-keystone) security update
Severity
Important
Notes
Topic: An update for openstack-keystone is now available for Red Hat OpenStack
Services on OpenShift 18.0 (Antelope).
Red Hat Product Security has rated this update as having a security impact
of Important. A Common Vulnerability Scoring System (CVSS) base score,
which gives a detailed severity rating, is available for each vulnerability
from the CVE link(s) in the References section.
Details: Keystone is a Python implementation of the OpenStack
(http://www.openstack.org) identity service API.
Security Fix(es):
* OpenStack Keystone: Unauthorized access and privilege escalation via AWS
signature validation flaw (CVE-2025-65073)
For more details about the security issue(s), including the impact, a CVSS
score, acknowledgments, and other related information, refer to the CVE
page listed in the References section.
Terms of Use: This content is licensed under the Creative Commons Attribution 4.0 International License (https://creativecommons.org/licenses/by/4.0/). If you distribute this content, or a modified version of it, you must provide attribution to Red Hat Inc. and provide a link to the original.
A flaw was found in OpenStack Keystone. This vulnerability allows an attacker to obtain a valid OpenStack's Keystone token, leading to access to unauthorized resources or privilege escalation within the OpenStack instance via sending a valid AWS (Amazon Web Services) signature to the /v3/ec2tokens or /v3/s3tokens API (Application Programming Interface) endpoints.
7.5 (High)
Vendor Fix
For details on how to apply this update, which includes the changes
described in this advisory, refer to:
https://access.redhat.com/articles/11258
https://access.redhat.com/errata/RHSA-2026:1958
Workaround
Red Hat has investigated whether a possible mitigation exists for this issue, and has not been able to identify a practical example. Please update the affected package as soon as possible.
References
{
"document": {
"aggregate_severity": {
"namespace": "https://access.redhat.com/security/updates/classification/",
"text": "Important"
},
"category": "csaf_security_advisory",
"csaf_version": "2.0",
"distribution": {
"text": "Copyright \u00a9 Red Hat, Inc. All rights reserved.",
"tlp": {
"label": "WHITE",
"url": "https://www.first.org/tlp/"
}
},
"lang": "en",
"notes": [
{
"category": "summary",
"text": "An update for openstack-keystone is now available for Red Hat OpenStack\nServices on OpenShift 18.0 (Antelope).\n\nRed Hat Product Security has rated this update as having a security impact\nof Important. A Common Vulnerability Scoring System (CVSS) base score,\nwhich gives a detailed severity rating, is available for each vulnerability\nfrom the CVE link(s) in the References section.",
"title": "Topic"
},
{
"category": "general",
"text": "Keystone is a Python implementation of the OpenStack\n(http://www.openstack.org) identity service API.\n\nSecurity Fix(es):\n\n* OpenStack Keystone: Unauthorized access and privilege escalation via AWS\nsignature validation flaw (CVE-2025-65073)\n\nFor more details about the security issue(s), including the impact, a CVSS\nscore, acknowledgments, and other related information, refer to the CVE\npage listed in the References section.",
"title": "Details"
},
{
"category": "legal_disclaimer",
"text": "This content is licensed under the Creative Commons Attribution 4.0 International License (https://creativecommons.org/licenses/by/4.0/). If you distribute this content, or a modified version of it, you must provide attribution to Red Hat Inc. and provide a link to the original.",
"title": "Terms of Use"
}
],
"publisher": {
"category": "vendor",
"contact_details": "https://access.redhat.com/security/team/contact/",
"issuing_authority": "Red Hat Product Security is responsible for vulnerability handling across all Red Hat products and services.",
"name": "Red Hat Product Security",
"namespace": "https://www.redhat.com"
},
"references": [
{
"category": "self",
"summary": "https://access.redhat.com/errata/RHSA-2026:1958",
"url": "https://access.redhat.com/errata/RHSA-2026:1958"
},
{
"category": "external",
"summary": "https://access.redhat.com/security/updates/classification/#important",
"url": "https://access.redhat.com/security/updates/classification/#important"
},
{
"category": "external",
"summary": "2415344",
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2415344"
},
{
"category": "self",
"summary": "Canonical URL",
"url": "https://security.access.redhat.com/data/csaf/v2/advisories/2026/rhsa-2026_1958.json"
}
],
"title": "Red Hat Security Advisory: Red Hat OpenStack Services on OpenShift 18.0 (openstack-keystone) security update",
"tracking": {
"current_release_date": "2026-03-19T17:36:08+00:00",
"generator": {
"date": "2026-03-19T17:36:08+00:00",
"engine": {
"name": "Red Hat SDEngine",
"version": "4.7.3"
}
},
"id": "RHSA-2026:1958",
"initial_release_date": "2026-02-13T04:28:58+00:00",
"revision_history": [
{
"date": "2026-02-13T04:28:58+00:00",
"number": "1",
"summary": "Initial version"
},
{
"date": "2026-02-13T04:28:58+00:00",
"number": "2",
"summary": "Last updated version"
},
{
"date": "2026-03-19T17:36:08+00:00",
"number": "3",
"summary": "Last generated version"
}
],
"status": "final",
"version": "3"
}
},
"product_tree": {
"branches": [
{
"branches": [
{
"branches": [
{
"category": "product_name",
"name": "Red Hat OpenStack Services on OpenShift 18.0",
"product": {
"name": "Red Hat OpenStack Services on OpenShift 18.0",
"product_id": "9Base-RHOSO-18.0",
"product_identification_helper": {
"cpe": "cpe:/a:redhat:openstack:18.0::el9"
}
}
}
],
"category": "product_family",
"name": "Red Hat OpenStack Services on OpenShift"
},
{
"branches": [
{
"category": "product_version",
"name": "openstack-keystone-1:23.0.3-18.0.20241202141842.9e3dfb4.el9ost.src",
"product": {
"name": "openstack-keystone-1:23.0.3-18.0.20241202141842.9e3dfb4.el9ost.src",
"product_id": "openstack-keystone-1:23.0.3-18.0.20241202141842.9e3dfb4.el9ost.src",
"product_identification_helper": {
"purl": "pkg:rpm/redhat/openstack-keystone@23.0.3-18.0.20241202141842.9e3dfb4.el9ost?arch=src\u0026epoch=1"
}
}
}
],
"category": "architecture",
"name": "src"
},
{
"branches": [
{
"category": "product_version",
"name": "openstack-keystone-1:23.0.3-18.0.20241202141842.9e3dfb4.el9ost.noarch",
"product": {
"name": "openstack-keystone-1:23.0.3-18.0.20241202141842.9e3dfb4.el9ost.noarch",
"product_id": "openstack-keystone-1:23.0.3-18.0.20241202141842.9e3dfb4.el9ost.noarch",
"product_identification_helper": {
"purl": "pkg:rpm/redhat/openstack-keystone@23.0.3-18.0.20241202141842.9e3dfb4.el9ost?arch=noarch\u0026epoch=1"
}
}
},
{
"category": "product_version",
"name": "python3-keystone-1:23.0.3-18.0.20241202141842.9e3dfb4.el9ost.noarch",
"product": {
"name": "python3-keystone-1:23.0.3-18.0.20241202141842.9e3dfb4.el9ost.noarch",
"product_id": "python3-keystone-1:23.0.3-18.0.20241202141842.9e3dfb4.el9ost.noarch",
"product_identification_helper": {
"purl": "pkg:rpm/redhat/python3-keystone@23.0.3-18.0.20241202141842.9e3dfb4.el9ost?arch=noarch\u0026epoch=1"
}
}
}
],
"category": "architecture",
"name": "noarch"
}
],
"category": "vendor",
"name": "Red Hat"
}
],
"relationships": [
{
"category": "default_component_of",
"full_product_name": {
"name": "openstack-keystone-1:23.0.3-18.0.20241202141842.9e3dfb4.el9ost.noarch as a component of Red Hat OpenStack Services on OpenShift 18.0",
"product_id": "9Base-RHOSO-18.0:openstack-keystone-1:23.0.3-18.0.20241202141842.9e3dfb4.el9ost.noarch"
},
"product_reference": "openstack-keystone-1:23.0.3-18.0.20241202141842.9e3dfb4.el9ost.noarch",
"relates_to_product_reference": "9Base-RHOSO-18.0"
},
{
"category": "default_component_of",
"full_product_name": {
"name": "openstack-keystone-1:23.0.3-18.0.20241202141842.9e3dfb4.el9ost.src as a component of Red Hat OpenStack Services on OpenShift 18.0",
"product_id": "9Base-RHOSO-18.0:openstack-keystone-1:23.0.3-18.0.20241202141842.9e3dfb4.el9ost.src"
},
"product_reference": "openstack-keystone-1:23.0.3-18.0.20241202141842.9e3dfb4.el9ost.src",
"relates_to_product_reference": "9Base-RHOSO-18.0"
},
{
"category": "default_component_of",
"full_product_name": {
"name": "python3-keystone-1:23.0.3-18.0.20241202141842.9e3dfb4.el9ost.noarch as a component of Red Hat OpenStack Services on OpenShift 18.0",
"product_id": "9Base-RHOSO-18.0:python3-keystone-1:23.0.3-18.0.20241202141842.9e3dfb4.el9ost.noarch"
},
"product_reference": "python3-keystone-1:23.0.3-18.0.20241202141842.9e3dfb4.el9ost.noarch",
"relates_to_product_reference": "9Base-RHOSO-18.0"
}
]
},
"vulnerabilities": [
{
"cve": "CVE-2025-65073",
"cwe": {
"id": "CWE-863",
"name": "Incorrect Authorization"
},
"discovery_date": "2025-11-17T08:00:54.372992+00:00",
"ids": [
{
"system_name": "Red Hat Bugzilla ID",
"text": "2415344"
}
],
"notes": [
{
"category": "description",
"text": "A flaw was found in OpenStack Keystone. This vulnerability allows an attacker to obtain a valid OpenStack\u0027s Keystone token, leading to access to unauthorized resources or privilege escalation within the OpenStack instance via sending a valid AWS (Amazon Web Services) signature to the /v3/ec2tokens or /v3/s3tokens API (Application Programming Interface) endpoints.",
"title": "Vulnerability description"
},
{
"category": "summary",
"text": "openstack-keystone: OpenStack Keystone: Unauthorized access and privilege escalation via AWS signature validation flaw",
"title": "Vulnerability summary"
},
{
"category": "other",
"text": "This vulnerability allows an attacker to obtain a valid OpenStack\u0027s Keystone token belonging to a valid user by sending a valid AWS signature to the /v3/ec2tokens or /v3/s3tokens API\u0027s endpoints, leading to access to unauthorized resources or privilege escalation within the OpenStack instance.\n\nThis attack is considered to have a high complexity (AC:H) due to the fact of obtaining such valid AWS token is not straight forward. To be considered vulnerable, the OpenStack deployments should expose the related API end points through a public API or external access.",
"title": "Statement"
},
{
"category": "general",
"text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product\u0027s status, and are included for informational purposes to better understand the severity of this vulnerability.",
"title": "CVSS score applicability"
}
],
"product_status": {
"fixed": [
"9Base-RHOSO-18.0:openstack-keystone-1:23.0.3-18.0.20241202141842.9e3dfb4.el9ost.noarch",
"9Base-RHOSO-18.0:openstack-keystone-1:23.0.3-18.0.20241202141842.9e3dfb4.el9ost.src",
"9Base-RHOSO-18.0:python3-keystone-1:23.0.3-18.0.20241202141842.9e3dfb4.el9ost.noarch"
]
},
"references": [
{
"category": "self",
"summary": "Canonical URL",
"url": "https://access.redhat.com/security/cve/CVE-2025-65073"
},
{
"category": "external",
"summary": "RHBZ#2415344",
"url": "https://bugzilla.redhat.com/show_bug.cgi?id=2415344"
},
{
"category": "external",
"summary": "https://www.cve.org/CVERecord?id=CVE-2025-65073",
"url": "https://www.cve.org/CVERecord?id=CVE-2025-65073"
},
{
"category": "external",
"summary": "https://nvd.nist.gov/vuln/detail/CVE-2025-65073",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2025-65073"
},
{
"category": "external",
"summary": "https://security.openstack.org/ossa/OSSA-2025-002.html",
"url": "https://security.openstack.org/ossa/OSSA-2025-002.html"
},
{
"category": "external",
"summary": "https://www.openwall.com/lists/oss-security/2025/11/04/2",
"url": "https://www.openwall.com/lists/oss-security/2025/11/04/2"
}
],
"release_date": "2025-11-17T00:00:00+00:00",
"remediations": [
{
"category": "vendor_fix",
"date": "2026-02-13T04:28:58+00:00",
"details": "For details on how to apply this update, which includes the changes\ndescribed in this advisory, refer to:\n\nhttps://access.redhat.com/articles/11258",
"product_ids": [
"9Base-RHOSO-18.0:openstack-keystone-1:23.0.3-18.0.20241202141842.9e3dfb4.el9ost.noarch",
"9Base-RHOSO-18.0:openstack-keystone-1:23.0.3-18.0.20241202141842.9e3dfb4.el9ost.src",
"9Base-RHOSO-18.0:python3-keystone-1:23.0.3-18.0.20241202141842.9e3dfb4.el9ost.noarch"
],
"restart_required": {
"category": "none"
},
"url": "https://access.redhat.com/errata/RHSA-2026:1958"
},
{
"category": "workaround",
"details": "Red Hat has investigated whether a possible mitigation exists for this issue, and has not been able to identify a practical example. Please update the affected package as soon as possible.",
"product_ids": [
"9Base-RHOSO-18.0:openstack-keystone-1:23.0.3-18.0.20241202141842.9e3dfb4.el9ost.noarch",
"9Base-RHOSO-18.0:openstack-keystone-1:23.0.3-18.0.20241202141842.9e3dfb4.el9ost.src",
"9Base-RHOSO-18.0:python3-keystone-1:23.0.3-18.0.20241202141842.9e3dfb4.el9ost.noarch"
]
}
],
"scores": [
{
"cvss_v3": {
"attackComplexity": "HIGH",
"attackVector": "NETWORK",
"availabilityImpact": "NONE",
"baseScore": 7.5,
"baseSeverity": "HIGH",
"confidentialityImpact": "LOW",
"integrityImpact": "HIGH",
"privilegesRequired": "NONE",
"scope": "CHANGED",
"userInteraction": "NONE",
"vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:L/I:H/A:N",
"version": "3.1"
},
"products": [
"9Base-RHOSO-18.0:openstack-keystone-1:23.0.3-18.0.20241202141842.9e3dfb4.el9ost.noarch",
"9Base-RHOSO-18.0:openstack-keystone-1:23.0.3-18.0.20241202141842.9e3dfb4.el9ost.src",
"9Base-RHOSO-18.0:python3-keystone-1:23.0.3-18.0.20241202141842.9e3dfb4.el9ost.noarch"
]
}
],
"threats": [
{
"category": "impact",
"details": "Important"
}
],
"title": "openstack-keystone: OpenStack Keystone: Unauthorized access and privilege escalation via AWS signature validation flaw"
}
]
}
Loading…
Loading…
Sightings
| Author | Source | Type | Date |
|---|
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…
Loading…