Issued:

2026-01-13

Updated:

2026-01-13

RHSA-2026:0530 - Red Hat OpenShift Service Mesh 2.6.12

Synopsis

Red Hat OpenShift Service Mesh 2.6.12

Type/Severity

Security Advisory Moderate

Topic

Red Hat OpenShift Service Mesh 2.6.12

This update has 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

Red Hat OpenShift Service Mesh 2.6.12, 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.

Security Fix(es):

• istio-cni-rhel8: Unbounded allocation when parsing GNU sparse map (CVE-2025-58183)
• pilot-rhel8: Unbounded allocation when parsing GNU sparse map (CVE-2025-58183)

Solution

See Red Hat OpenShift Service Mesh 2.6.12 documentation at https://docs.redhat.com/en/documentation/openshift_container_platform/4.19/html/service_mesh/service-mesh-2-x

Affected Products

Fixes

(none)

CVEs

(none)

References

• https://access.redhat.com/security/cve/CVE-2025-58183

Additional information

• The Red Hat security contact is This content is not included.secalert@redhat.com. More contact details at https://access.redhat.com/security/team/contact/.
• Offline Security Data data is available for integration with other systems. See Offline Security Data API to get started.