7.5

CVE-2026-73553

Exploit

Envoy: RBAC Authorization Bypass via Path Parameters

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, When ignore_path_parameters_in_path_matching is enabled, Envoy's router strips the semicolon suffix before matching but the RBAC url_path matcher evaluates the raw path. A downstream request such as /admin;x can therefore miss a DENY rule for /admin while the router still selects the protected /admin backend. The inconsistent canonicalization allows an unauthenticated client to bypass path-based authorization. The relevant scope boundary is that the route option and a path-based RBAC rule must both be present, and the protected route must match after stripping. This issue is fixed in versions 1.36.10, 1.37.6, 1.38.4, and 1.39.1.
Daten sind bereitgestellt durch National Vulnerability Database (NVD)
Envoyproxy ≫ Envoy Version < 1.36.10
Envoyproxy ≫ Envoy Version >= 1.37.0 < 1.37.6
Envoyproxy ≫ Envoy Version >= 1.38.0 < 1.38.4
Envoyproxy ≫ Envoy Version >= 1.39.0 < 1.39.1
VulnDex Vulnerability Enrichment
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Zu dieser CVE wurde keine Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 0.52% 0.43
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
security-advisories@github.com 7.5 2.2 4.7
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:L/A:N
CWE-436 Interpretation Conflict

Product A handles inputs or steps differently than Product B, which causes A to perform incorrect actions based on its perception of B's state.

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-77x5-xqjg-hprq
Vendor Advisory
Exploit
Mitigation
https://github.com/envoyproxy/envoy/commit/0be4a0302ea94a894e470817c2edfbd5ed90d273
Patch
https://github.com/envoyproxy/envoy/commit/6a703a375a20e3bf98140ee5f5522c614adee7b6
Patch
https://github.com/envoyproxy/envoy/commit/b6ec9b66cc33a415e2fa81a6fa8363cac4772dd1
Patch
https://github.com/envoyproxy/envoy/commit/e6d5fe885409ebb335ed3934a167f0bcfea471f2
Patch