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CVE-2026-49978VulnerabilityPublished Updated

Red Hat Security Advisory: Kiali 2.22.8 for Red Hat OpenShift Service Mesh 3.3

Affects Red HatSource GCVE Database

0

Mentioned vulnerabilities

Authoritative record:CVE-2026-49978· Medium 6.3

Not known to be exploited · CVSS 6.3 Medium · fixed in Red Hat package updates : update Red Hat dompurify when convenient.

Data as of 26 Oct 2026, 17:16 UTC

CVSS 4.0 base score
6.3Medium
How severe the flaw is on the 0–10 CVSS scale.
EPSS
0.4% chance of exploitation in 30 days – higher than 34% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
Patch
Available – fixed in 3.4.6, 3.4.7
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:N/VI:N/VA:N/SC:H/SI:H/SA:N

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 14 Jul 2026

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponised: no evidence on record.

    No public exploit code indexed in Metasploit or Exploit-DB

  4. Exploited in the wild: no evidence on record.

    Not in CISA KEV and no source reports exploitation

  5. Observed by OffSeq 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 DOMPurify to 3.4.6; dompurify to 3.4.7.

Affected software

ProductAffectedFixed in
cure53DOMPurifyAffected
  • <3.4.6
Fixed in
  • 3.4.6
npmdompurifypkg:npm/dompurifyOther threatsAffected
  • <3.4.7
Fixed in
  • 3.4.7

Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.

Description

Kiali 2.22.8, for Red Hat OpenShift Service Mesh 3.3, 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-rhel9: node-tar: Denial of Service via crafted gzip bomb (OSSM-14905) * CVE-2026-59873 openshift-service-mesh/kiali-ossmc-rhel9: node-tar: Denial of Service via crafted gzip bomb (OSSM-14908) * CVE-2026-59874 openshift-service-mesh/kiali-rhel9: Node-tar: Denial of Service via malformed tar archive header (OSSM-14909) * CVE-2026-59874 openshift-service-mesh/kiali-ossmc-rhel9: Node-tar: Denial of Service via malformed tar archive header (OSSM-14912) * CVE-2026-59869 openshift-service-mesh/kiali-rhel9: js-yaml: Denial of Service via crafted YAML documents (OSSM-14928) * CVE-2026-59869 openshift-service-mesh/kiali-ossmc-rhel9: js-yaml: Denial of Service via crafted YAML documents (OSSM-14930) * CVE-2026-49978 openshift-service-mesh/kiali-ossmc-rhel9: DOMPurify: Cross-site scripting vulnerability allows code execution (OSSM-15014) * CVE-2026-49978 openshift-service-mesh/kiali-rhel9: DOMPurify: Cross-site scripting vulnerability allows code execution (OSSM-15015) * CVE-2026-59877 openshift-service-mesh/kiali-ossmc-rhel9: protobufjs: Denial of Service via crafted .proto schema (OSSM-15027) * CVE-2026-59877 openshift-service-mesh/kiali-rhel9: protobufjs: Denial of Service via crafted .proto schema (OSSM-15028) 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

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