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CVE-2026-44590

Sherlock: Command Injection via pull_request_target in validate_modified_targets.yml

Published: May 27, 2026Updated: May 27, 2026 Sources: CVE List NVD
NVD MITRE
9.3CVSS
CRITICAL

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.

EPSS Score
N/A
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
No Fix Available

CVSS Vector Breakdown

AV:NAC:LPR:NUI:NS:CC:LI:HA:N
Exploitability
AV:NAttack Vector
Network
AC:LAttack Complexity
Low
PR:NPrivileges Required
None
UI:NUser Interaction
None
Scope
S:CScope
Changed
Impact
C:LConfidentiality
Low
I:HIntegrity
High
A:NAvailability
None

Weaknesses

CWE-78

Affected Products

sherlock
sherlock-project

Attack Graph

Products CVE Techniques Tactics

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Exploitability

No known exploits, KEV entries, or remediation guidance available for this vulnerability yet.

MITRE ATT&CK

1 technique
Execution
View detailed technique mapping

References

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

Timeline

Published
May 27, 2026
Last Updated
May 27, 2026

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