SARA / Free Tools / CVE / CVE-2022-39321

CVE-2022-39321 — GitHub Actions Runner is the application that runs a job from a GitHub Actions w

GitHub Actions Runner is the application that runs a job from a GitHub Actions workflow. The actions runner invokes the docker cli directly in order to run job containers, service containers, or container actions. A bug in the logic for how the environment is encoded into these d

CVSS
8.8 HIGH
EPSS
1.40% (top 19.80%)
CWE
CWE-78
Published
2022-10-25T00:00:00.000Z
Last modified
2025-04-23T16:44:36.866Z
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

01What is this vulnerability?

GitHub Actions Runner is the application that runs a job from a GitHub Actions workflow. The actions runner invokes the docker cli directly in order to run job containers, service containers, or container actions. A bug in the logic for how the environment is encoded into these docker commands was discovered in versions prior to 2.296.2, 2.293.1, 2.289.4, 2.285.2, and 2.283.4 that allows an input…

02Affected products

VendorProductVersions
actionsrunner< 2.283.4, >= 2.284.0, < 2.285.2, >= 2.286.0, < 2.289.4, >= 2.290.0, < 2.293.1, >= 2.294.0, < 2.296.2

03Active exploitation status

Not currently listed on the CISA Known Exploited Vulnerabilities (KEV) catalog. EPSS is the best forward-looking signal — see the EPSS row above.

04Recommended remediation

05Technical details

For the full vendor write-up, exploit chains, and reference implementations, see the references list in section 09.

06Detection signatures

Ask SARA in chat to draft a starting detection for this CVE in your stack of choice.

07Related CVEs

No directly-cited follow-up CVEs in the KB record for this advisory. The references list in section 09 carries the vendor cross-references.

08Timeline

09References

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