Red Hat Security Advisory: Red Hat OpenShift Service Mesh 3.2.2

The golang crypto/x509 package contains a denial of service vulnerability (CVE-2025-61729) caused by excessive resource consumption when processing a specially crafted certificate. This flaw can be triggered to cause a denial of service condition. Red Hat has issued security advisories RHSA-2026:0921 and RHSA-2026:0922 providing updated go-toolset packages that fix this issue for Red Hat Enterprise Linux 8, 9, and 10. The advisories include detailed package versions and instructions for applying the update. The vulnerability is tracked under CWE-1050 and CWE-409.

Successful exploitation of this vulnerability could allow an attacker to cause a denial of service by exhausting system resources when the vulnerable golang crypto/x509 package processes a crafted certificate. This may impact applications or services that use the affected golang versions for certificate handling. There are no reports of active exploitation in the wild.

Red Hat has released updated golang packages that fix this vulnerability. Users should apply the official security updates provided in Red Hat advisories RHSA-2026:0921 and RHSA-2026:0922 for their respective Red Hat Enterprise Linux versions. Refer to https://access.redhat.com/articles/11258 for detailed update instructions. No additional mitigation steps are required beyond applying these official patches.