Red Hat Security Advisory: Red Hat OpenShift Service Mesh 3.0.11
Red Hat OpenShift Service Mesh 3.0.11, which is based on the open source Istio project, addresses a variety of problems in a microservice architecture by creating a centralized point of control in an application. Fixes/Improvements: * OSSM 3 Operator icon missing from OperatorHub catalog in OCP console (OSSM-13028) Security Fix(es): * istio-rhel9-operator: possible memory corruption after bound check elimination (CVE-2026-27143) * istio-proxyv2-rhel9: possible memory corruption after bound check elimination (CVE-2026-27143) * istio-pilot-rhel9: possible memory corruption after bound check elimination (CVE-2026-27143) * istio-cni-rhel9: possible memory corruption after bound check elimination (CVE-2026-27143) * istio-rhel9-operator: no-op interface conversion bypasses overlap checking (CVE-2026-27144) * istio-proxyv2-rhel9: no-op interface conversion bypasses overlap checking (CVE-2026-27144) * istio-pilot-rhel9: no-op interface conversion bypasses overlap checking (CVE-2026-27144) * istio-cni-rhel9: no-op interface conversion bypasses overlap checking (CVE-2026-27144) * istio-rhel9-operator: Go: Denial of Service vulnerability in certificate chain building (CVE-2026-32280) * istio-pilot-rhel9: Go: Denial of Service vulnerability in certificate chain building (CVE-2026-32280) * istio-cni-rhel9: Go: Denial of Service vulnerability in certificate chain building (CVE-2026-32280)
AI Analysis
Technical Summary
Red Hat OpenShift Service Mesh 3.0.11, based on the Istio project, fixes several security vulnerabilities including CVE-2026-27143 (possible memory corruption after bound check elimination), CVE-2026-27144 (no-op interface conversion bypassing overlap checking), and CVE-2026-32280 (Go denial of service vulnerability in certificate chain building). These vulnerabilities affect multiple components of the service mesh operator and related services on Red Hat Enterprise Linux 9 (rhel9). The advisory indicates these issues have been addressed in the 3.0.11 release.
Potential Impact
The vulnerabilities could lead to memory corruption and denial of service conditions within the affected components of the OpenShift Service Mesh, potentially impacting the stability and security of microservices managed by the mesh. The no-op interface conversion vulnerability may allow bypassing of overlap checking, which could affect internal processing integrity. The denial of service vulnerability in certificate chain building could disrupt secure communications.
Mitigation Recommendations
A fix is available in Red Hat OpenShift Service Mesh version 3.0.11. Users should upgrade to this version to remediate the identified vulnerabilities. Refer to Red Hat's official advisory RHSA-2026:16477 and the OpenShift Service Mesh 3.0.11 documentation for upgrade instructions and further details.
Red Hat Security Advisory: Red Hat OpenShift Service Mesh 3.0.11
Description
Red Hat OpenShift Service Mesh 3.0.11, which is based on the open source Istio project, addresses a variety of problems in a microservice architecture by creating a centralized point of control in an application. Fixes/Improvements: * OSSM 3 Operator icon missing from OperatorHub catalog in OCP console (OSSM-13028) Security Fix(es): * istio-rhel9-operator: possible memory corruption after bound check elimination (CVE-2026-27143) * istio-proxyv2-rhel9: possible memory corruption after bound check elimination (CVE-2026-27143) * istio-pilot-rhel9: possible memory corruption after bound check elimination (CVE-2026-27143) * istio-cni-rhel9: possible memory corruption after bound check elimination (CVE-2026-27143) * istio-rhel9-operator: no-op interface conversion bypasses overlap checking (CVE-2026-27144) * istio-proxyv2-rhel9: no-op interface conversion bypasses overlap checking (CVE-2026-27144) * istio-pilot-rhel9: no-op interface conversion bypasses overlap checking (CVE-2026-27144) * istio-cni-rhel9: no-op interface conversion bypasses overlap checking (CVE-2026-27144) * istio-rhel9-operator: Go: Denial of Service vulnerability in certificate chain building (CVE-2026-32280) * istio-pilot-rhel9: Go: Denial of Service vulnerability in certificate chain building (CVE-2026-32280) * istio-cni-rhel9: Go: Denial of Service vulnerability in certificate chain building (CVE-2026-32280)
Affected software
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
Red Hat OpenShift Service Mesh 3.0.11, based on the Istio project, fixes several security vulnerabilities including CVE-2026-27143 (possible memory corruption after bound check elimination), CVE-2026-27144 (no-op interface conversion bypassing overlap checking), and CVE-2026-32280 (Go denial of service vulnerability in certificate chain building). These vulnerabilities affect multiple components of the service mesh operator and related services on Red Hat Enterprise Linux 9 (rhel9). The advisory indicates these issues have been addressed in the 3.0.11 release.
Potential Impact
The vulnerabilities could lead to memory corruption and denial of service conditions within the affected components of the OpenShift Service Mesh, potentially impacting the stability and security of microservices managed by the mesh. The no-op interface conversion vulnerability may allow bypassing of overlap checking, which could affect internal processing integrity. The denial of service vulnerability in certificate chain building could disrupt secure communications.
Mitigation Recommendations
A fix is available in Red Hat OpenShift Service Mesh version 3.0.11. Users should upgrade to this version to remediate the identified vulnerabilities. Refer to Red Hat's official advisory RHSA-2026:16477 and the OpenShift Service Mesh 3.0.11 documentation for upgrade instructions and further details.
Technical Details
- Gcve Source
- db.gcve.eu
- Csaf Category
- csaf_security_advisory
- Csaf Version
- 2.0
- Publisher
- Red Hat Product Security
- Advisory Id
- RHSA-2026:16477
- Cve Count
- 3
- Additional Cves
- ["CVE-2026-27144","CVE-2026-32280"]
- Cvss Version
- null
Threat ID: 6a16097be29bf47b50647b9d
Added to database: 05/26/2026, 20:58:35 UTC
Last enriched: 07/30/2026, 11:09:02 UTC
Last updated: 07/31/2026, 19:22:58 UTC
Views: 103
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