How severe is CVE-2026-50141?

No CVSS score has been assigned to CVE-2026-50141 yet. Review the advisory details and affected package list to assess your exposure.

Which packages are affected by CVE-2026-50141?

CVE-2026-50141 affects the following packages: go.woodpecker-ci.org/woodpecker/v3 (Go). Ecosystems affected: Go.

How do I fix CVE-2026-50141?

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 CVE-2026-50141 is resolved across your whole dependency graph.

How do I detect CVE-2026-50141 in my Go dependencies?

Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for go.woodpecker-ci.org/woodpecker/v3, including transitive dependencies — a direct dependency you never call can still pull in a vulnerable version.

How do I mitigate CVE-2026-50141 if there is no patch (or I can't update yet)?

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.

Is CVE-2026-50141 actively exploited in the wild?

No public exploit code has been indexed for CVE-2026-50141 yet. This does not mean the vulnerability cannot be exploited — absence of public exploits does not imply safety. Apply the recommended fix and use O3 Security to monitor your exposure.

What is the EPSS score for CVE-2026-50141?

CVE-2026-50141 has an EPSS (Exploit Prediction Scoring System) score of 0.4%, placing it in the 35th percentile of all CVEs. EPSS is maintained by FIRST.org and estimates the probability that a vulnerability will be exploited in the wild within the next 30 days. This score indicates relatively lower exploitation probability, though the CVSS severity should still guide your patching priority.

What type of vulnerability is CVE-2026-50141?

CVE-2026-50141 is classified as CWE-290 (CWE-290), CWE-639 (CWE-639). These weakness types describe the underlying flaw category, which helps determine the potential impact and the right class of mitigation.

When was CVE-2026-50141 published, and has it been updated?

CVE-2026-50141 was published on June 18, 2026 and was last updated on August 12, 2026. Advisory data evolves as severity scores, affected ranges, and exploit intelligence are revised — always check the latest version of the advisory before acting.

🐹 Go

Not in CISA KEV

CVE-2026-50141 — v3

Fix: woodpecker-ci/woodpecker#6567

CVE-2026-50141 is a CWE-290 vulnerability in go.woodpecker-ci.org/woodpecker/v3. A fix is available for go.woodpecker-ci.org/woodpecker/v3 — see the affected versions and patch details below.

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

Also known asGHSA-g7mm-9vx7-jm7hGO-2026-5976

Published

Jun 18, 2026

Updated

Aug 12, 2026

Affected

1 pkg

Patched

1 / 1

Exploits

None indexed

Exploitation data as of Sep 28, 2026 · OSV.dev, NVD, FIRST.org (EPSS)

Exploitation Status

No confirmed exploitation observed yet

CISA’s own triage has not observed active exploitation or public proof-of-concept code for this CVE as of its last assessment.

Exploitation and automatability from CISA’s SSVC triage for CVE-2026-50141.

EPSS Exploitation Probability

via FIRST.org ↗

0.4%probability of exploitation in next 30 days

Lower Risk0.00%

Lower risk than most CVEs35th percentile — riskier than 35% of all scored CVEsHighest risk

Probability of exploitation in the next 30 days, from 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

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.

Affected Packages

1 total 1 fixed

Ecosystem	Package	Vulnerable range	Fix
🐹Go	`go.woodpecker-ci.org/woodpecker/v3`	≥ 3.0.0&&< 3.14.1	3.14.1`go get go.woodpecker-ci.org/woodpecker/v3@v3.14.1`

Detection & mitigation playbook

Open-source dependency

Detect
Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for go.woodpecker-ci.org/woodpecker/v3, including transitive dependencies — a direct dependency you never call can still pull in a vulnerable version.
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 CVE-2026-50141 is resolved across your whole dependency graph.
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.

Frequently Asked Questions

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.

O3 Security · Impact-Aware SCA

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