RHSA-2026:33160 - Security Advisory

Topic

Kiali 2.4.19 for Red Hat OpenShift Service Mesh 3.0 is now available.
Red Hat Product Security has rated this update as having a security impact of Moderate. 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.

Description

Kiali 2.4.19, for Red Hat OpenShift Service Mesh 3.0, 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-2026-42338 openshift-service-mesh/kiali-ossmc-rhel9: ip-address: Cross-site scripting via improper HTML escaping of untrusted input (OSSM-14061)
• CVE-2026-42338 openshift-service-mesh/kiali-rhel9: ip-address: Cross-site scripting via improper HTML escaping of untrusted input (OSSM-14069)
• CVE-2026-39821 openshift-service-mesh/kiali-rhel9: golang.org/x/net/idna: Privilege escalation via incorrect Punycode label processing (OSSM-14072)
• CVE-2026-44495 openshift-service-mesh/kiali-ossmc-rhel9: Axios: Information disclosure due to prototype pollution vulnerability (OSSM-14136)
• CVE-2026-44495 openshift-service-mesh/kiali-rhel9: Axios: Information disclosure due to prototype pollution vulnerability (OSSM-14140)
• CVE-2026-44488 openshift-service-mesh/kiali-ossmc-rhel9: Axios: Denial of Service due to unenforced request and response size limits (OSSM-14150)
• CVE-2026-44488 openshift-service-mesh/kiali-rhel9: Axios: Denial of Service due to unenforced request and response size limits (OSSM-14155)
• CVE-2026-44487 openshift-service-mesh/kiali-rhel9: Axios: Information disclosure of proxy credentials via redirect flows (OSSM-14169)
• CVE-2026-44487 openshift-service-mesh/kiali-ossmc-rhel9: Axios: Information disclosure of proxy credentials via redirect flows (OSSM-14178)
• CVE-2026-44494 openshift-service-mesh/kiali-rhel9: Axios: Man-in-the-Middle (MITM) attack via Prototype Pollution (OSSM-14181)
• CVE-2026-44494 openshift-service-mesh/kiali-ossmc-rhel9: Axios: Man-in-the-Middle (MITM) attack via Prototype Pollution (OSSM-14183)
• CVE-2026-44496 openshift-service-mesh/kiali-ossmc-rhel9: Axios: Client-side Denial of Service via unescaped regex metacharacters in XSRF cookie name (OSSM-14190)
• CVE-2026-44496 openshift-service-mesh/kiali-rhel9: Axios: Client-side Denial of Service via unescaped regex metacharacters in XSRF cookie name (OSSM-14192)
• CVE-2026-44486 openshift-service-mesh/kiali-ossmc-rhel9: Axios: Information disclosure of proxy credentials via HTTP redirects (OSSM-14194)
• CVE-2026-44486 openshift-service-mesh/kiali-rhel9: Axios: Information disclosure of proxy credentials via HTTP redirects (OSSM-14208)
• CVE-2026-44492 openshift-service-mesh/kiali-ossmc-rhel9: Axios: Proxy bypass via IPv4-mapped IPv6 address non-normalization (OSSM-14218)
• CVE-2026-44492 openshift-service-mesh/kiali-rhel9: Axios: Proxy bypass via IPv4-mapped IPv6 address non-normalization (OSSM-14225)
• CVE-2026-48779 openshift-service-mesh/kiali-rhel9: ws: Denial of Service via memory exhaustion from small WebSocket fragments (OSSM-14302)
• CVE-2026-48779 openshift-service-mesh/kiali-ossmc-rhel9: ws: Denial of Service via memory exhaustion from small WebSocket fragments (OSSM-14306)
• CVE-2026-12143 openshift-service-mesh/kiali-ossmc-rhel9: form-data: Form field override via CRLF injection (OSSM-14334)
• CVE-2026-12143 openshift-service-mesh/kiali-rhel9: form-data: Form field override via CRLF injection (OSSM-14339)

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.

Solution

See Kiali 2.4.19 documentation at https://docs.redhat.com/en/documentation/red_hat_openshift_service_mesh/3.0/html/observability/kiali-operator-provided-by-red-hat

Affected Products

• Red Hat OpenShift Service Mesh

Fixes

CVEs

• CVE-2026-12143
• CVE-2026-39821
• CVE-2026-42338
• CVE-2026-44486
• CVE-2026-44487
• CVE-2026-44488
• CVE-2026-44492
• CVE-2026-44494
• CVE-2026-44495
• CVE-2026-44496
• CVE-2026-48779

References

• https://access.redhat.com/security/updates/classification
• https://access.redhat.com/security/updates/classification/