CVE-2026-73511

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 normally matches the raw request path, while servlet backends such as Apache Tomcat strip semicolon matrix parameters from each path segment before resolving the resource. Envoy's ignore_path_parameters_in_path_matching option instead truncates at the first semicolon and still does not match per-segment backend behavior. A remote client can use a parameterized protected segment, or a parameter on an earlier segment, to make Envoy select an unprotected fallback while the backend resolves the protected resource. The relevant scope boundary is that the bypass requires both a path-based Envoy decision and a backend that strips semicolon parameters per segment. 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-289
• CWE-436

Références

• https://github.com/envoyproxy/envoy/commit/26d5 Patch
• https://github.com/envoyproxy/envoy/commit/50f7bfa48dccfee339822e9846b2b8053e07d325 Patch
• https://github.com/envoyproxy/envoy/commit/b205d1f4982e14ce5693ba94ef84d37e7155e050 Patch
• https://github.com/envoyproxy/envoy/commit/fcb663752c7055257f5dcc8b6ce6c7c905ebb1ff 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-m745-gh6x-349x ExploitVendor Advisory

Ailleurs

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