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Suggestion detail

Untriaged
Permalink CVE-2026-25542
6.5 MEDIUM
  • CVSS version: 3.1
  • Attack vector (AV): NETWORK
  • Attack complexity (AC): LOW
  • Privileges required (PR): LOW
  • User interaction (UI): NONE
  • Scope (S): UNCHANGED
  • Confidentiality impact (C): NONE
  • Integrity impact (I): HIGH
  • Availability impact (A): NONE
created 1 day, 4 hours ago Activity log
  • Created suggestion 1 day, 4 hours ago
Tekton Pipelines: VerificationPolicy regex pattern bypass via substring matching

Tekton Pipelines project provides k8s-style resources for declaring CI/CD-style pipelines. From 0.43.0 to 1.11.0, trusted resources verification policies match a resource source string (refSource.URI) against spec.resources[].pattern using regexp.MatchString. In Go, regexp.MatchString reports a match if the pattern matches anywhere in the string, so common unanchored patterns (including examples in tekton documentation) can be bypassed by attacker-controlled source strings that contain the trusted pattern as a substring. This can cause an unintended policy match and change which verification mode/keys apply.

Affected products

pipeline
  • ==>= 0.43.0, <= 1.11.0

Matching in nixpkgs

pkgs.pipeline

Watch YouTube and PeerTube videos in one place

pkgs.libpipeline

C library for manipulating pipelines of subprocesses in a flexible and convenient way

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