CVE-2026-73512

Description

Envoy is an open source edge and service proxy designed for cloud-native applications. Prior to 1.36.10, 1.37.6, 1.38.4, and 1.39.1, Envoy's HttpDatagramHandler caches the current RequestDecoder when Capsule Protocol is enabled. Stream recreation, including an internal redirect, replaces the ActiveStream and updates EnvoyQuicServerStream but does not update the handler's cached pointer. A subsequent HTTP/3 datagram can call decodeData through the freed decoder, causing invalid virtual dispatch and a process crash. The relevant scope boundary is that hTTP/3 datagrams and Capsule Protocol must be enabled, and the request must enter a stream-recreation path such as an internal redirect. This issue is fixed in versions 1.36.10, 1.37.6, 1.38.4, and 1.39.1.

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Produits concernés

• envoyproxy envoy

Scores CVSS

Faiblesses (CWE)

• CWE-416

Références

• https://github.com/envoyproxy/envoy/commit/29dbaae4a9971011e2f1948acfaf383296e901ea Patch
• https://github.com/envoyproxy/envoy/commit/85495163fdc67364a5258bfe478c34a44f6428b4 Patch
• https://github.com/envoyproxy/envoy/commit/c0e46dabc3ac286bbe608e9274776555911aadb9 Patch
• https://github.com/envoyproxy/envoy/commit/f2417eec2ff49abe243d484ded916fbc2faca38d Patch
• https://github.com/envoyproxy/envoy/releases/tag/v1.36.10 Release Notes
• https://github.com/envoyproxy/envoy/releases/tag/v1.37.6 Release Notes
• https://github.com/envoyproxy/envoy/releases/tag/v1.38.4 Release Notes
• https://github.com/envoyproxy/envoy/releases/tag/v1.39.1 Release Notes
• https://github.com/envoyproxy/envoy/security/advisories/GHSA-r6j2-mrm5-72mg ExploitVendor AdvisoryMitigation
• https://github.com/envoyproxy/envoy/security/advisories/GHSA-r6j2-mrm5-72mg ExploitVendor AdvisoryMitigation

Ailleurs

• NVD
• CVE.org
• CIRCL Vulnerability-Lookup
• CERT-FR
• GitHub Advisories