CVE-2026-26310 Crash for scoped ip address in Envoy during DNS

Envoy is a high-performance edge/middle/service proxy. Prior to 1.37.1, 1.36.5, 1.35.8, and 1.34.13, calling Utility::getAddressWithPort with a scoped IPv6 addresses causes a crash. This utility is called in the data plane from the originalsrc filter and the dns filter. This vulnerability is fixe...

GHSA-3CW6-2J68-868P Envoy vulnerable to crash for scoped ip address during DNS

Summary Calling Utility::getAddressWithPort with a scoped IPv6 addresses causes a crash. This utility is called in the data plane from the originalsrc filter and the dns filter. Details The crashing function is Utility::getAddressWithPort. The crash occurs if a string containing a scoped IPv6...