Vulnerability-Lookup

RHSA-2026:49689

Vulnerability from csaf_redhat - Published: 2026-08-03 13:51 - Updated: 2026-08-04 22:36

Summary

Red Hat Security Advisory: Kiali 2.11.15 for Red Hat OpenShift Service Mesh 3.1

Severity

Important

Notes

Topic: Kiali 2.11.15 for Red Hat OpenShift Service Mesh 3.1 is now available. 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: Kiali 2.11.15, for Red Hat OpenShift Service Mesh 3.1, provides observability for the service mesh by offering a visual representation of the mesh topology and metrics, helping users monitor, trace, and manage efficiently. Security Fix(es): * CVE-2026-59873 openshift-service-mesh/kiali-ossmc-rhel9: node-tar: Denial of Service via crafted gzip bomb (OSSM-14904) * CVE-2026-59873 openshift-service-mesh/kiali-rhel9: node-tar: Denial of Service via crafted gzip bomb (OSSM-14906) * CVE-2026-59874 openshift-service-mesh/kiali-rhel9: Node-tar: Denial of Service via malformed tar archive header (OSSM-14910) * CVE-2026-59874 openshift-service-mesh/kiali-ossmc-rhel9: Node-tar: Denial of Service via malformed tar archive header (OSSM-14914) * CVE-2026-59869 openshift-service-mesh/kiali-ossmc-rhel9: js-yaml: Denial of Service via crafted YAML documents (OSSM-14923) * CVE-2026-59869 openshift-service-mesh/kiali-rhel9: js-yaml: Denial of Service via crafted YAML documents (OSSM-14926) For more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) 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.

CVE-2026-59869

A flaw was found in js-yaml, a JavaScript YAML parser and dumper. A remote attacker could exploit this vulnerability by providing a specially crafted YAML document containing a chain of mappings with merge keys. This could cause the parser to consume excessive CPU resources, leading to a Denial of Service (DoS) for the affected system.

7.5 (High)


                        
                          CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

CWE-606 - Unchecked Input for Loop Condition

Affected products

Fixed 8 products

Product	Version	Remediation
Unresolved product id: Red Hat OpenShift Service Mesh 3.1:registry.redhat.io/openshift-service-mesh/kiali-ossmc-rhel9@sha256:097bbedcb4141e9b58d790cf7bb4c6612df8b9aefa1bc90826bb3a8176740960_s390x	—	Vendor Fix fix Workaround
Unresolved product id: Red Hat OpenShift Service Mesh 3.1:registry.redhat.io/openshift-service-mesh/kiali-ossmc-rhel9@sha256:5d56d5714da216892e405ea630008801373937e3c476af186355874ec2740069_ppc64le	—	Vendor Fix fix Workaround
Unresolved product id: Red Hat OpenShift Service Mesh 3.1:registry.redhat.io/openshift-service-mesh/kiali-ossmc-rhel9@sha256:842a6a626eb127338e6e2a4fcb08fe899c7b3e65ec1b307680b7fb6ae70b9bd3_amd64	—	Vendor Fix fix Workaround
Unresolved product id: Red Hat OpenShift Service Mesh 3.1:registry.redhat.io/openshift-service-mesh/kiali-ossmc-rhel9@sha256:a5ae3e8a27760eabd49538e2f5128ac7fa7ea09643f357c22aa9ab4e7374025c_arm64	—	Vendor Fix fix Workaround
Unresolved product id: Red Hat OpenShift Service Mesh 3.1:registry.redhat.io/openshift-service-mesh/kiali-rhel9@sha256:1f19328ce067d068b44fecb600d75c2155e9284dfa0dedfd41762aee2f56b09a_s390x	—	Vendor Fix fix Workaround
Unresolved product id: Red Hat OpenShift Service Mesh 3.1:registry.redhat.io/openshift-service-mesh/kiali-rhel9@sha256:675f9d9ab94188937332f49dbf3e8262d3d66e7dab9087b39974ba0134c5a141_amd64	—	Vendor Fix fix Workaround
Unresolved product id: Red Hat OpenShift Service Mesh 3.1:registry.redhat.io/openshift-service-mesh/kiali-rhel9@sha256:85dfae63baed87a20b4c1ccd4938d67d5406efd1959533c4ba958d6c6c293c58_ppc64le	—	Vendor Fix fix Workaround
Unresolved product id: Red Hat OpenShift Service Mesh 3.1:registry.redhat.io/openshift-service-mesh/kiali-rhel9@sha256:fc2238b9db4f3567f0eb82bd2e5e422cd48ebc4327ca94d7177cdaebe1d7b20e_arm64	—	Vendor Fix fix Workaround

Threats

Impact Important

CVE-2026-59873

A flaw was found in node-tar, a tar archive manipulation library for Node.js. This vulnerability allows a remote attacker to craft a small gzip bomb, which, when processed, can lead to the exhaustion of disk space and CPU resources. This occurs because node-tar does not enforce strict limits on the total decompressed data, the number of entries, or the decompression ratio during extraction and parsing. The primary impact is a Denial of Service (DoS), making the affected system or application unavailable.

7.5 (High)


                        
                          CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

CWE-770 - Allocation of Resources Without Limits or Throttling

Affected products

Fixed 8 products

Product	Version	Remediation
Unresolved product id: Red Hat OpenShift Service Mesh 3.1:registry.redhat.io/openshift-service-mesh/kiali-ossmc-rhel9@sha256:097bbedcb4141e9b58d790cf7bb4c6612df8b9aefa1bc90826bb3a8176740960_s390x	—	Vendor Fix fix Workaround
Unresolved product id: Red Hat OpenShift Service Mesh 3.1:registry.redhat.io/openshift-service-mesh/kiali-ossmc-rhel9@sha256:5d56d5714da216892e405ea630008801373937e3c476af186355874ec2740069_ppc64le	—	Vendor Fix fix Workaround
Unresolved product id: Red Hat OpenShift Service Mesh 3.1:registry.redhat.io/openshift-service-mesh/kiali-ossmc-rhel9@sha256:842a6a626eb127338e6e2a4fcb08fe899c7b3e65ec1b307680b7fb6ae70b9bd3_amd64	—	Vendor Fix fix Workaround
Unresolved product id: Red Hat OpenShift Service Mesh 3.1:registry.redhat.io/openshift-service-mesh/kiali-ossmc-rhel9@sha256:a5ae3e8a27760eabd49538e2f5128ac7fa7ea09643f357c22aa9ab4e7374025c_arm64	—	Vendor Fix fix Workaround
Unresolved product id: Red Hat OpenShift Service Mesh 3.1:registry.redhat.io/openshift-service-mesh/kiali-rhel9@sha256:1f19328ce067d068b44fecb600d75c2155e9284dfa0dedfd41762aee2f56b09a_s390x	—	Vendor Fix fix Workaround
Unresolved product id: Red Hat OpenShift Service Mesh 3.1:registry.redhat.io/openshift-service-mesh/kiali-rhel9@sha256:675f9d9ab94188937332f49dbf3e8262d3d66e7dab9087b39974ba0134c5a141_amd64	—	Vendor Fix fix Workaround
Unresolved product id: Red Hat OpenShift Service Mesh 3.1:registry.redhat.io/openshift-service-mesh/kiali-rhel9@sha256:85dfae63baed87a20b4c1ccd4938d67d5406efd1959533c4ba958d6c6c293c58_ppc64le	—	Vendor Fix fix Workaround
Unresolved product id: Red Hat OpenShift Service Mesh 3.1:registry.redhat.io/openshift-service-mesh/kiali-rhel9@sha256:fc2238b9db4f3567f0eb82bd2e5e422cd48ebc4327ca94d7177cdaebe1d7b20e_arm64	—	Vendor Fix fix Workaround

Threats

Impact Important

CVE-2026-59874

A flaw was found in node-tar, a tar archive manipulation library for Node.js. A remote attacker could exploit this vulnerability by providing a specially crafted tar archive with a negative entry size in its header. This malformed header causes the archive scanner to enter an infinite loop, repeatedly parsing the same header and preventing further processing. This can lead to a denial of service (DoS) condition, making the affected system or application unresponsive.

7.5 (High)


                        
                          CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

CWE-606 - Unchecked Input for Loop Condition

Affected products

Fixed 8 products

Product	Version	Remediation
Unresolved product id: Red Hat OpenShift Service Mesh 3.1:registry.redhat.io/openshift-service-mesh/kiali-ossmc-rhel9@sha256:097bbedcb4141e9b58d790cf7bb4c6612df8b9aefa1bc90826bb3a8176740960_s390x	—	Vendor Fix fix Workaround
Unresolved product id: Red Hat OpenShift Service Mesh 3.1:registry.redhat.io/openshift-service-mesh/kiali-ossmc-rhel9@sha256:5d56d5714da216892e405ea630008801373937e3c476af186355874ec2740069_ppc64le	—	Vendor Fix fix Workaround
Unresolved product id: Red Hat OpenShift Service Mesh 3.1:registry.redhat.io/openshift-service-mesh/kiali-ossmc-rhel9@sha256:842a6a626eb127338e6e2a4fcb08fe899c7b3e65ec1b307680b7fb6ae70b9bd3_amd64	—	Vendor Fix fix Workaround
Unresolved product id: Red Hat OpenShift Service Mesh 3.1:registry.redhat.io/openshift-service-mesh/kiali-ossmc-rhel9@sha256:a5ae3e8a27760eabd49538e2f5128ac7fa7ea09643f357c22aa9ab4e7374025c_arm64	—	Vendor Fix fix Workaround
Unresolved product id: Red Hat OpenShift Service Mesh 3.1:registry.redhat.io/openshift-service-mesh/kiali-rhel9@sha256:1f19328ce067d068b44fecb600d75c2155e9284dfa0dedfd41762aee2f56b09a_s390x	—	Vendor Fix fix Workaround
Unresolved product id: Red Hat OpenShift Service Mesh 3.1:registry.redhat.io/openshift-service-mesh/kiali-rhel9@sha256:675f9d9ab94188937332f49dbf3e8262d3d66e7dab9087b39974ba0134c5a141_amd64	—	Vendor Fix fix Workaround
Unresolved product id: Red Hat OpenShift Service Mesh 3.1:registry.redhat.io/openshift-service-mesh/kiali-rhel9@sha256:85dfae63baed87a20b4c1ccd4938d67d5406efd1959533c4ba958d6c6c293c58_ppc64le	—	Vendor Fix fix Workaround
Unresolved product id: Red Hat OpenShift Service Mesh 3.1:registry.redhat.io/openshift-service-mesh/kiali-rhel9@sha256:fc2238b9db4f3567f0eb82bd2e5e422cd48ebc4327ca94d7177cdaebe1d7b20e_arm64	—	Vendor Fix fix Workaround

Threats

Impact Important

References

30 references

URL	Category
https://access.redhat.com/errata/RHSA-2026:49689	self
https://access.redhat.com/security/cve/CVE-2026-59869	external
https://access.redhat.com/security/cve/CVE-2026-59873	external
https://access.redhat.com/security/cve/CVE-2026-59874	external
https://access.redhat.com/security/updates/classi…	external
https://access.redhat.com/security/updates/classi…	external
https://security.access.redhat.com/data/csaf/v2/a…	self
https://access.redhat.com/security/cve/CVE-2026-59869	self
https://bugzilla.redhat.com/show_bug.cgi?id=2498122	external
https://www.cve.org/CVERecord?id=CVE-2026-59869	external
https://nvd.nist.gov/vuln/detail/CVE-2026-59869	external
https://github.com/nodeca/js-yaml/commit/24f13e79…	external
https://github.com/nodeca/js-yaml/commit/59423c6f…	external
https://github.com/nodeca/js-yaml/releases/tag/3.15.0	external
https://github.com/nodeca/js-yaml/releases/tag/4.3.0	external
https://github.com/nodeca/js-yaml/security/adviso…	external
https://access.redhat.com/security/cve/CVE-2026-59873	self
https://bugzilla.redhat.com/show_bug.cgi?id=2498120	external
https://www.cve.org/CVERecord?id=CVE-2026-59873	external
https://nvd.nist.gov/vuln/detail/CVE-2026-59873	external
https://github.com/isaacs/node-tar/commit/2812e93…	external
https://github.com/isaacs/node-tar/releases/tag/v7.5.19	external
https://github.com/isaacs/node-tar/security/advis…	external
https://access.redhat.com/security/cve/CVE-2026-59874	self
https://bugzilla.redhat.com/show_bug.cgi?id=2498116	external
https://www.cve.org/CVERecord?id=CVE-2026-59874	external
https://nvd.nist.gov/vuln/detail/CVE-2026-59874	external
https://github.com/isaacs/node-tar/commit/9e78bf0…	external
https://github.com/isaacs/node-tar/releases/tag/v7.5.18	external
https://github.com/isaacs/node-tar/security/advis…	external

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          "text": "A flaw was found in js-yaml, a JavaScript YAML parser and dumper. A remote attacker could exploit this vulnerability by providing a specially crafted YAML document containing a chain of mappings with merge keys. This could cause the parser to consume excessive CPU resources, leading to a Denial of Service (DoS) for the affected system.",
          "title": "Vulnerability description"
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          "title": "Vulnerability summary"
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          "category": "other",
          "text": "This vulnerability is rated as Important. Red Hat products utilizing `js-yaml` to process untrusted YAML input are susceptible to a denial of service, as a remote attacker can provide a crafted document that consumes excessive CPU resources. This is considered Important due to the potential for service disruption without requiring authentication or complex attack vectors.",
          "title": "Statement"
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          "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"
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            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
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          "category": "impact",
          "details": "Important"
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      "cve": "CVE-2026-59873",
      "cwe": {
        "id": "CWE-770",
        "name": "Allocation of Resources Without Limits or Throttling"
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        {
          "system_name": "Red Hat Bugzilla ID",
          "text": "2498120"
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        {
          "category": "description",
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          "title": "Vulnerability description"
        },
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          "text": "tar: node-tar: Denial of Service via crafted gzip bomb",
          "title": "Vulnerability summary"
        },
        {
          "category": "other",
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          "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"
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            "attackVector": "NETWORK",
            "availabilityImpact": "HIGH",
            "baseScore": 7.5,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "NONE",
            "integrityImpact": "NONE",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
            "version": "3.1"
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    {
      "cve": "CVE-2026-59874",
      "cwe": {
        "id": "CWE-606",
        "name": "Unchecked Input for Loop Condition"
      },
      "discovery_date": "2026-07-08T16:01:09.952291+00:00",
      "ids": [
        {
          "system_name": "Red Hat Bugzilla ID",
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          "title": "Vulnerability description"
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          "text": "tar: Node-tar: Denial of Service via malformed tar archive header",
          "title": "Vulnerability summary"
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        {
          "category": "other",
          "text": "This Important denial of service flaw in node-tar affects Red Hat products that process untrusted tar archives. A remote attacker can provide a specially crafted archive with a malformed header, leading to an infinite loop during parsing and causing the application to become unresponsive. This can impact the availability of services relying on node-tar for archive manipulation.",
          "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"
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      "threats": [
        {
          "category": "impact",
          "details": "Important"
        }
      ],
      "title": "tar: Node-tar: Denial of Service via malformed tar archive header"
    }
  ]
}

CVE-2026-59869 (GCVE-0-2026-59869)

Vulnerability from cvelistv5 – Published: 2026-07-08 15:15 – Updated: 2026-07-09 15:14

Title

js-yaml: YAML merge-key chains can force quadratic CPU consumption

Summary

js-yaml is a JavaScript YAML parser and dumper. From 3.0.0 before 3.15.0 and from 4.0.0 before 4.3.0, js-yaml can spend quadratic CPU time parsing a document whose size grows only linearly when a chain of mappings uses merge keys where each mapping merges the previous one. This issue is fixed in versions 3.15.0 and 4.3.0.

Severity

7.5 (High)


                        
                          CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

SSVC

Exploitation: poc Automatable: yes Technical Impact: partial

CISA Coordinator (v2.0.3)

CWE

CWE-407 - Inefficient Algorithmic Complexity

Assigner

GitHub_M

References

5 references

URL	Tags
https://github.com/nodeca/js-yaml/security/adviso…	x_refsource_CONFIRM
https://github.com/nodeca/js-yaml/commit/24f13e79…	x_refsource_MISC
https://github.com/nodeca/js-yaml/commit/59423c6f…	x_refsource_MISC
https://github.com/nodeca/js-yaml/releases/tag/3.15.0	x_refsource_MISC
https://github.com/nodeca/js-yaml/releases/tag/4.3.0	x_refsource_MISC

Impacted products

1 product

Vendor	Product	Version
nodeca	js-yaml	Affected: >= 3.0.0, < 3.15.0 Affected: >= 4.0.0, < 4.3.0

Show details on NVD website

JSON

To clipboard

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CVE-2026-59873 (GCVE-0-2026-59873)

Vulnerability from cvelistv5 – Published: 2026-07-08 15:22 – Updated: 2026-07-08 19:41

Title

node-tar: Decompression/parse DoS via unlimited input

Summary

node-tar is a tar archive manipulation library for Node.js. Prior to 7.5.19, node-tar does not enforce hard upper bounds on total decompressed data, entry counts, or decompression ratio in extraction and parsing paths such as src/extract.ts, allowing a small crafted gzip bomb to exhaust disk space and CPU. This issue is fixed in version 7.5.19.

Severity

9.2 (Critical)


                        
                          CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:H

SSVC

Exploitation: poc Automatable: yes Technical Impact: partial

CISA Coordinator (v2.0.3)

CWE

CWE-770 - Allocation of Resources Without Limits or Throttling

Assigner

GitHub_M

References

3 references

URL	Tags
https://github.com/isaacs/node-tar/security/advis…	x_refsource_CONFIRM
https://github.com/isaacs/node-tar/commit/2812e93…	x_refsource_MISC
https://github.com/isaacs/node-tar/releases/tag/v7.5.19	x_refsource_MISC

Impacted products

1 product

Vendor	Product	Version
isaacs	node-tar	Affected: < 7.5.19

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
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        "metrics": [
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CVE-2026-59874 (GCVE-0-2026-59874)

Vulnerability from cvelistv5 – Published: 2026-07-08 15:23 – Updated: 2026-07-08 17:00

Title

node-tar: Negative tar entry size causes infinite loop in archive replace

Summary

node-tar is a tar archive manipulation library for Node.js. Prior to 7.5.18, tar.replace accepts a checksum-valid tar header with a negative base-256 encoded entry size, causing the archive scanner to make no progress while repeatedly parsing the same header. This issue is fixed in version 7.5.18.

Severity

8.7 (High)


                        
                          CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N

SSVC

Exploitation: poc Automatable: yes Technical Impact: partial

CISA Coordinator (v2.0.3)

CWE

CWE-835 - Loop with Unreachable Exit Condition ('Infinite Loop')

Assigner

GitHub_M

References

3 references

URL	Tags
https://github.com/isaacs/node-tar/security/advis…	x_refsource_CONFIRM
https://github.com/isaacs/node-tar/commit/9e78bf0…	x_refsource_MISC
https://github.com/isaacs/node-tar/releases/tag/v7.5.18	x_refsource_MISC

Impacted products

1 product

Vendor	Product	Version
isaacs	node-tar	Affected: < 7.5.18

Show details on NVD website

JSON

To clipboard

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    "adp": [
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    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

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.

Detection rules are retrieved from Rulezet.

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.

Action not permitted

RHSA-2026:49689

CVE-2026-59869 (GCVE-0-2026-59869)

CVE-2026-59873 (GCVE-0-2026-59873)

CVE-2026-59874 (GCVE-0-2026-59874)

Tags

Sightings

Nomenclature