Red Hat Security Advisory: Kiali 2.11.15 for Red Hat OpenShift Service Mesh 3.1
Affects Red HatSource GCVE Database
Mentioned vulnerabilities
Not known to be exploited · CVSS 7.5 High : upgrade Red Hat js-yaml to 4.3.0 or 3.15.0 soon.
Data as of 27 Oct 2026, 06:13 UTC
- EPSS
- 0.5% chance of exploitation in 30 days – higher than 47% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
- Patch
- Available – fixed in 4.3.0, 3.15.0
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:HExploitation evidence
Disclosed: evidence found.
CVE published 8 Jul 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponised: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors
A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 26 Oct 2026.
What to do
Upgrade js-yaml to 4.3.0 or 3.15.0.
Affected software
| Product | Affected | Fixed in |
|---|---|---|
| nodecajs-yaml | Affected
| Fixed in
|
| nodecajs-yaml | Affected
| Fixed in
|
npmjs-yamlpkg:npm/js-yamlOther threats | Affected
| Fixed in
|
Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.
Description
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.
References
- access.redhat.com/errata/RHSA-2026:49689 (opens in a new tab)
- access.redhat.com/security/cve/CVE-2026-59869 (opens in a new tab)
- access.redhat.com/security/cve/CVE-2026-59873 (opens in a new tab)
- access.redhat.com/security/cve/CVE-2026-59874 (opens in a new tab)
- access.redhat.com/security/updates/classification (opens in a new tab)
- access.redhat.com/security/updates/classification/ (opens in a new tab)
- security.access.redhat.com/data/csaf/v2/advisories/2026/rhsa-2026_49689.json (opens in a new tab)