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Vulnerability record · CVE-2026-44590 · published 27 May 2026

CVE-2026-44590: OS command injection vulnerability

Sherlock hunts down social media accounts by username across social networks. Prior to 0.16.1, the GitHub Actions workflow validate_modified_targets.yml is vulnerable to command injection via the pull_request_target trigger. Any GitHub user can execute arbitrary commands on the CI runner and exfiltrate the GITHUB_TOKEN by opening a pull request. No approval, review, or merge is required. This vulnerability is fixed in 0.16.1.

9.3 CVSS 3.1 Critical EPSS 1.3% · top 30.8% CWE-78 · OS command injection Deferred
9.3CVSS 3.1 base score
1.3%EPSS exploitation probability, 30 days
NoNot in CISA KEV
0Affected product versions listed by NVD
2References
17 Jun 2026Last modified by NVD

Description

Sherlock hunts down social media accounts by username across social networks. Prior to 0.16.1, the GitHub Actions workflow validate_modified_targets.yml is vulnerable to command injection via the pull_request_target trigger. Any GitHub user can execute arbitrary commands on the CI runner and exfiltrate the GITHUB_TOKEN by opening a pull request. No approval, review, or merge is required. This vulnerability is fixed in 0.16.1.

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

References

LinkTags
https://github.com/sherlock-project/sherlock/security/advisories/GHSA-v6wr-ccr4-x8g9
https://github.com/sherlock-project/sherlock/security/advisories/GHSA-v6wr-ccr4-x8g9

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Source: NIST National Vulnerability Database (record CVE-2026-44590), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.