🛡️ CVE-2026-50141 — woodpecker
Description
Woodpecker gRPC agent_id metadata can be spoofed- cross-tenant agent impersonation
Impact
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.
Patches
Direct patch: https://github.com/woodpecker-ci/woodpecker/pull/6567
Later proper fix: https://github.com/woodpecker-ci/woodpecker/pull/6569
Workarounds
Disable org agents (WOODPECKER_DISABLE_USER_AGENT_REGISTRATION=true) and delete existing ones
Resources
Public ref: https://github.com/woodpecker-ci/woodpecker/issues/6541
Private com: https://github.com/woodpecker-ci/woodpecker-security/issues/21
Affected software
CVE-2026-50141 is recorded against 4 packages.
- go.woodpecker-ci.org/woodpecker
- go.woodpecker-ci.org/woodpecker/v2
- go.woodpecker-ci.org/woodpecker/v3
- unknown
Timeline and source
Published on 17 July 2026 and last revised on 21 July 2026. No public exploit is currently recorded for this entry. Record sourced from NVD.
References
github.com (Advisory)
nvd.nist.gov (Advisory)
github.com (Web)
github.com (Web)
github.com (Web)
Details
Affected Packages
| Software | From version | Fixed in |
|---|---|---|
| go.woodpecker-ci.org/woodpecker | — | — |
| go.woodpecker-ci.org/woodpecker/v2 | — | — |
| go.woodpecker-ci.org/woodpecker/v3 | — | — |
| unknown | — | — |
References
Similar Threats
- High CVE-2026-61549
- High CVE-2024-41121
- High CVE-2024-41122
More CVE 2026 advisories
Browse all of CVE 2026 in the advisory index.
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