CVE-2026-50141

highcovered by 1 sourcefirst seen 2026-07-14

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

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Exploitation outlook

Low exploitation risk0.43% 30-day exploitation probability — currently an unlikely target, but scores change as exploit code circulates. Riskier than 35% of all EPSS-scored CVEs.

Advisory coverage (1)

highGHSA-g7mm-9vx7-jm7h: Woodpecker gRPC agent_id metadata can be spoofed- cross-tenant agent impersonationghsa · 2026-07-14

External references

NVD record for CVE-2026-50141

CVE.org record

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