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GHSA-g7mm-9vx7-jm7h

Fix: woodpecker-ci/woodpecker#6567

GHSA-g7mm-9vx7-jm7h is a CWE-290 vulnerability in go.woodpecker-ci.org/woodpecker/v3. O3 Security confirms whether GHSA-g7mm-9vx7-jm7h is actually reachable in your code before you act, and blocks exploitation at runtime until you patch.

Woodpecker gRPC agent_id metadata can be spoofed- cross-tenant agent impersonation

Also known asCVE-2026-50141GO-2026-5976
Published
Jul 14, 2026
Updated
Jul 21, 2026
Affected
1 pkg
Patched
1 / 1
Exploits
None indexed
Exploitation data as of Jul 21, 2026 · OSV.dev, NVD, FIRST.org (EPSS)

Real-World Exposure

1 pkg affected
🐹go.woodpecker-ci.org/woodpecker/v3

Real-time download stats are indexed for npm and PyPI packages. This vulnerability affects Go packages — download data is not available via public APIs for these ecosystems.

Description

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 Packages

1 total 1 fixed
EcosystemPackageVulnerable rangeFix
🐹Gogo.woodpecker-ci.org/woodpecker/v33.0.0&&< 3.14.13.14.1

Detection & mitigation playbook

Open-source dependency
  1. Detect

    Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for go.woodpecker-ci.org/woodpecker/v3. O3's reachability analysis confirms whether the vulnerable code path is actually invoked in your application, so you act on real exposure instead of every transitive match.

  2. Fix

    Update go.woodpecker-ci.org/woodpecker/v3 to 3.14.1 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms GHSA-g7mm-9vx7-jm7h is resolved across your whole dependency graph.

  3. Workarounds

    If you can't upgrade right away: gate or disable the affected feature, validate untrusted input at the boundary, and avoid passing attacker-controlled data into the vulnerable path. O3's runtime protection blocks exploitation in production as an interim safeguard until the upgrade lands.

  4. How O3 protects you

    O3 pinpoints whether GHSA-g7mm-9vx7-jm7h is reachable in your code and exactly where to fix it, then blocks exploitation in production at runtime until the patched version is deployed.

Tailored to GHSA-g7mm-9vx7-jm7h. Runtime protection reduces exposure until a permanent patch is applied and verified — it complements patching, it doesn't replace it.

Frequently Asked Questions

### 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 on
O3 Security · Impact-Aware SCA

Is GHSA-g7mm-9vx7-jm7h in your dependencies?

O3 detects GHSA-g7mm-9vx7-jm7h across Go dependencies and uses function-level reachability to confirm whether the vulnerable code path is actually reachable — not just present. No false positives.

GHSA-g7mm-9vx7-jm7h: v3 | O3 Security