{"document":{"category":"csaf_vex","csaf_version":"2.0","title":"CVE-2026-50141: Woodpecker gRPC agent_id metadata can be spoofed- cross-tenant agent impersonation","publisher":{"category":"vendor","name":"HarborGuard Database","namespace":"https://database.harborguard.co"},"tracking":{"id":"CVE-2026-50141","status":"final","version":"1","initial_release_date":"2026-06-18T14:13:38.065Z","current_release_date":"2026-06-18T16:10:41.914Z","revision_history":[{"date":"2026-06-18T14:13:38.065Z","number":"1","summary":"Initial machine-readable export from HarborGuard."}]},"distribution":{"tlp":{"label":"WHITE"},"text":"Public CVE data; freely redistributable."},"notes":[{"category":"description","text":"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.","title":"CVE description"}],"references":[{"category":"self","summary":"CVE-2026-50141 on HarborGuard Database","url":"https://database.harborguard.co/cve/CVE-2026-50141"},{"category":"external","summary":"CVE Record","url":"https://www.cve.org/CVERecord?id=CVE-2026-50141"},{"category":"external","summary":"https://github.com/woodpecker-ci/woodpecker/security/advisories/GHSA-g7mm-9vx7-jm7h","url":"https://github.com/woodpecker-ci/woodpecker/security/advisories/GHSA-g7mm-9vx7-jm7h"},{"category":"external","summary":"https://github.com/woodpecker-ci/woodpecker-security/issues/21","url":"https://github.com/woodpecker-ci/woodpecker-security/issues/21"},{"category":"external","summary":"https://github.com/woodpecker-ci/woodpecker/issues/6541","url":"https://github.com/woodpecker-ci/woodpecker/issues/6541"},{"category":"external","summary":"https://github.com/woodpecker-ci/woodpecker/pull/6567","url":"https://github.com/woodpecker-ci/woodpecker/pull/6567"},{"category":"external","summary":"https://github.com/woodpecker-ci/woodpecker/pull/6569","url":"https://github.com/woodpecker-ci/woodpecker/pull/6569"}]},"product_tree":{"branches":[{"category":"vendor","name":"woodpecker-ci","branches":[{"category":"product_name","name":"woodpecker","branches":[{"category":"product_version","name":">= 3.0.0, < 3.14.1","product":{"name":"woodpecker-ci woodpecker >= 3.0.0, < 3.14.1","product_id":"CSAFPID-1","product_identification_helper":{"cpe":"cpe:2.3:a:woodpecker-ci:woodpecker:\\>\\=_3.0.0\\,_\\<_3.14.1:*:*:*:*:*:*:*"}}}]}]}]},"vulnerabilities":[{"cve":"CVE-2026-50141","title":"Woodpecker gRPC agent_id metadata can be spoofed- cross-tenant agent impersonation","notes":[{"category":"description","text":"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.","title":"CVE description"}],"product_status":{"known_affected":["CSAFPID-1"]},"scores":[{"cvss_v4":{"version":"4.0","vectorString":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N","baseScore":7.1,"baseSeverity":"HIGH"},"products":["CSAFPID-1"]}],"remediations":[{"category":"none_available","details":"No fixed version is published yet. Monitor the upstream advisory.","product_ids":["CSAFPID-1"]}]}]}