PT-2026-50677 · Woodpecker Ci · Woodpecker

Published 2026-06-18 · Updated 2026-06-18 · CVE-2026-50141

Mitre

CVSS v4.0

7.1

High

Base vector

AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N

Woodpecker is a CI/CD engine. Starting in version 3.0.0 and prior to version 3.14.1, a vulnerability in Woodpecker CI's gRPC layer allowed any authenticated agent to impersonate any other agent on the same server by injecting a forged agent id value into outgoing gRPC metadata. The server correctly verified the JWT token but then discarded the verified agent identity in favor of the client-supplied value. Version 3.14.1 patches the issue. As a workaround, disable org agents (WOODPECKER DISABLE USER AGENT REGISTRATION=true) and delete existing ones.

Fix

Authentication Bypass by Spoofing

IDOR

Weakness Enumeration

CWE-290

CWE-639

Related Identifiers

CVE-2026-50141

Affected Products

Woodpecker

References · 6

• https://nvd.nist.gov/vuln/detail/CVE-2026-50141 · Security Note
• https://github.com/woodpecker-ci/woodpecker/security/advisories/GHSA-g7mm-9vx7-jm7h · Note
• https://github.com/woodpecker-ci/woodpecker/pull/6567 · Note
• https://github.com/woodpecker-ci/woodpecker/pull/6569 · Note
• https://github.com/woodpecker-ci/woodpecker-security/issues/21 · Note
• https://github.com/woodpecker-ci/woodpecker/issues/6541 · Note