by Kastro
Paper/Archive/CVE-2026-44590

CVE-2026-44590

sherlock-project sherlock — Sherlock: Command Injection via pull_request_target in validate_modified_targets.yml

EPSS 1%public exploitCVSS 9.3
critical.is priorityof 100
51
CVSS 9.3 (CNA)9.3 / 10 × 3027.9Not in CISA KEV+300.0EPSS percentile 66.7.667 × 2013.3Exploit: SSVC poc+1010.0SSVC exploitation: poc+100.0
Description · from the CVE record

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.

Affected

ProductAffectedFixed inSource
sherlock< 0.16.1–CNA

Scores by source

GitHub_M (CNA)9.3CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:H/A:N
CISA ADPSSVCExploitation: poc · Automatable: yes · Technical impact: partial

References

exploitgithub.com/sherlock-project/sherlock/security/advisories/GHSA-v6wr-ccr4-x8g9