Ghostwire

CVE-2026-44590: Sherlock hunts down social media accounts by username across social networks. Prior to 0.16.1, the GitHub Actions...

CRITICAL CVSS 9.5 Exploit Available 1 PoC

Published: May 27, 2026 | Last Modified: May 27, 2026

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.

Ghostwire Analysis — What This Means Practically

Critical CVSS score indicates maximum severity — remote code execution, authentication bypass, or complete system compromise is likely possible.
1 proof-of-concept exploit available on GitHub. Public exploit code lowers the barrier for both researchers and attackers.

This analysis is generated by Ghostwire from NVD, CISA KEV, EPSS, and open-source intelligence data. Verify findings through primary sources before acting.

Proof-of-Concept Exploits (1)

Astaruf/CVE-2026-44590

CVE-2026-44590: Sherlock hunts down social media accounts by username across social networks. Prior to 0.16.1, the GitHub Actions...

Description

Ghostwire Analysis — What This Means Practically

Proof-of-Concept Exploits (1)

Security Coverage (1 articles)

References