CVE-2026-50141
Woodpecker gRPC agent_id metadata can be spoofed- cross-tenant agent impersonation
CVSS Score
0.0
EPSS Score
0.0%
EPSS Percentile
0th
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.
| CWE | CWE-290 CWE-639 |
| Vendor | woodpecker-ci |
| Product | woodpecker |
| Published | Jun 18, 2026 |
| Last Updated | Jun 18, 2026 |
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Affected Versions
woodpecker-ci / woodpecker
>= 3.0.0, < 3.14.1
References
github.com: https://github.com/woodpecker-ci/woodpecker/security/advisories/GHSA-g7mm-9vx7-jm7h github.com: https://github.com/woodpecker-ci/woodpecker-security/issues/21 github.com: https://github.com/woodpecker-ci/woodpecker/issues/6541 github.com: https://github.com/woodpecker-ci/woodpecker/pull/6567 github.com: https://github.com/woodpecker-ci/woodpecker/pull/6569