User Impersonation Affecting go.woodpecker-ci.org/woodpecker/v3/server/rpc package, versions <3.14.1
Threat Intelligence
The probability is the direct output of the EPSS model, and conveys an overall sense of the threat of exploitation in the wild. The percentile measures the EPSS probability relative to all known EPSS scores. Note: This data is updated daily, relying on the latest available EPSS model version. Check out the EPSS documentation for more details.
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Test your applications- Snyk IDSNYK-GOLANG-GOWOODPECKERCIORGWOODPECKERV3SERVERRPC-17811826
- published7 Jul 2026
- disclosed18 Jun 2026
- creditUnknown
Introduced: 18 Jun 2026
CVE-2026-50141 Â (opens in a new tab)How to fix?
Upgrade go.woodpecker-ci.org/woodpecker/v3/server/rpc to version 3.14.1 or higher.
Overview
Affected versions of this package are vulnerable to User Impersonation via the agent_id metadata in the gRPC communication process. An attacker can impersonate other agents on the same server by injecting a forged value into outgoing metadata, leading to unauthorized cross-tenant actions. This is only exploitable if org agents are enabled and existing user agents are present.
Workaround
This vulnerability can be mitigated by disabling org agents (WOODPECKER_DISABLE_USER_AGENT_REGISTRATION=true) and deleting existing ones.