CVE-2024-52587

HIGH
Published Nov 18, 2024 Modified Apr 15, 2026 CWE-78

Description

StepSecurity's Harden-Runner provides network egress filtering and runtime security for GitHub-hosted and self-hosted runners. Versions of step-security/harden-runner prior to v2.10.2 contain multiple command injection weaknesses via environment variables that could potentially be exploited under specific conditions. However, due to the current execution order of pre-steps in GitHub Actions and the placement of harden-runner as the first step in a job, the likelihood of exploitation is low as the Harden-Runner action reads the environment variable during the pre-step stage. There are no known exploits at this time. Version 2.10.2 contains a patch.

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CVSS v3.1 Score

8.8
HIGH
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Weakness Type (CWE)

CWE-78 OS Command Injection

References

Other References

https://github.com/step-security/harden-runner/blob/951b48540b429070694bc8abd82fd6901eb123ca/src/arc-runner.ts#L40-L44 https://github.com/step-security/harden-runner/blob/951b48540b429070694bc8abd82fd6901eb123ca/src/arc-runner.ts#L53 https://github.com/step-security/harden-runner/blob/951b48540b429070694bc8abd82fd6901eb123ca/src/arc-runner.ts#L57 https://github.com/step-security/harden-runner/blob/951b48540b429070694bc8abd82fd6901eb123ca/src/arc-runner.ts#L61 https://github.com/step-security/harden-runner/blob/951b48540b429070694bc8abd82fd6901eb123ca/src/setup.ts#L169 https://github.com/step-security/harden-runner/blob/951b48540b429070694bc8abd82fd6901eb123ca/src/setup.ts#L229 https://github.com/step-security/harden-runner/commit/0080882f6c36860b6ba35c610c98ce87d4e2f26f https://github.com/step-security/harden-runner/security/advisories/GHSA-g85v-wf27-67xc

Frequently Asked Questions

What is CVE-2024-52587? +
StepSecurity's Harden-Runner provides network egress filtering and runtime security for GitHub-hosted and self-hosted runners. Versions of step-security/harden-runner prior to v2.10.2 contain multiple command injection weaknesses via environment variables that could potentially be exploited under specific conditions. However, due to the current execution order of pre-steps in GitHub Actions and the placement of harden-runner as the first step in a job, the likelihood of exploitation is low as the Harden-Runner action reads the environment variable during the pre-step stage. There are no known exploits at this time. Version 2.10.2 contains a patch. It has a CVSS v3.1 base score of 8.8 (HIGH).
How severe is CVE-2024-52587? +
CVE-2024-52587 has a CVSS v3.1 score of 8.8 out of 10, rated HIGH. This is a high-severity vulnerability that should be prioritized for patching.
How do I check if I'm vulnerable to CVE-2024-52587? +
You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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