Arbitrary Code Injection

Contour is vulnerable to Arbitrary Code Injection. The vulnerability is due to insufficient sanitization of user-controlled values in cookieRewritePolicies.pathRewrite.value, where values are interpolated into Envoy HTTP Lua filter code using Go text/template, allowing attackers with HTTPProxy...

BIT-CONTOUR-2026-41246 Contour: Lua code injection via Cookie Path Rewrite Policy

Contour is a Kubernetes ingress controller using Envoy proxy. From v1.19.0 to before v1.33.4, v1.32.5, and v1.31.6, Contour's Cookie Rewriting feature is vulnerable to Lua code injection. An attacker with RBAC permissions to create or modify HTTPProxy resources can craft a malicious value in...

GHSA-X4MJ-7F9G-29H4 Contour has Lua code injection via Cookie Path Rewrite Policy

Impact Contour's Cookie Rewriting feature is vulnerable to Lua code injection. An attacker with RBAC permissions to create or modify HTTPProxy resources can craft a malicious value in the following fields that results in arbitrary code execution in the Envoy proxy: -...

EUVD-2026-25280

Contour has Lua code injection via Cookie Path Rewrite Policy...

Arbitrary Code Injection

Overview Affected versions of this package are vulnerable to Arbitrary Code Injection via the cookieRewritePolicies process. An attacker can execute arbitrary code within the Envoy proxy by crafting a malicious value in the pathRewrite.value field of HTTPProxy resources, potentially allowing acce...

CVE-2026-41246

Contour is a Kubernetes ingress controller using Envoy proxy. From v1.19.0 to before v1.33.4, v1.32.5, and v1.31.6, Contour's Cookie Rewriting feature is vulnerable to Lua code injection. An attacker with RBAC permissions to create or modify HTTPProxy resources can craft a malicious value in...

CVE-2026-41246 Contour: Lua code injection via Cookie Path Rewrite Policy

Contour is a Kubernetes ingress controller using Envoy proxy. From v1.19.0 to before v1.33.4, v1.32.5, and v1.31.6, Contour's Cookie Rewriting feature is vulnerable to Lua code injection. An attacker with RBAC permissions to create or modify HTTPProxy resources can craft a malicious value in...

CVE-2026-41246 Contour: Lua code injection via Cookie Path Rewrite Policy

Contour is a Kubernetes ingress controller using Envoy proxy. From v1.19.0 to before v1.33.4, v1.32.5, and v1.31.6, Contour's Cookie Rewriting feature is vulnerable to Lua code injection. An attacker with RBAC permissions to create or modify HTTPProxy resources can craft a malicious value in...

CVE-2026-41246

Contour’s Cookie Rewriting feature (Envoy Lua filter) is vulnerable to Lua code injection from v1.19.0 up to before v1.33.4, v1.32.5, and v1.31.6. An attacker with RBAC to create/modify HTTPProxy resources can inject values into spec.routes[].cookieRewritePolicies[].pathRewrite.value (or services...

PT-2026-34726

Name of the Vulnerable Software and Affected Versions Contour versions 1.19.0 through 1.31.5 Contour versions 1.32.0 through 1.32.4 Contour versions 1.33.0 through 1.33.3 Description The Cookie Rewriting feature is susceptible to Lua code injection. An attacker with RBAC permissions to create or...

Apple iOS CFNetwork cookie rewriting vulnerability

iOS is an operating system developed by Apple for mobile devices. A rewrite vulnerability exists in the Apple iOS CFNetwork cookie. An attacker can exploit this vulnerability to rewrite cookie values via a remote web server...