For the complete documentation index, see llms.txt. Markdown versions of all docs pages are available by appending .md to any docs URL.

Solo build of Istio version 1.27.5 patch release.

This release note describes what’s different between Solo builds of Istio versions 1.27.3-patch0 and 1.27.4.

Security Notice

This build includes a fix of a CVE in the c-ares dependency of Envoy:

• CVE-2025-62408: (CVSS score 5.9, Medium): Use after free due to connection being cleaned up after error.

General Changes

• Built against upstream Istio version 1.27.5, release note can be found here.

Solo Flavor Changes

No changes in this section.

FIPS Flavor Changes

No changes in this section.