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CVE-2026-44590

CRITICALCVSS 9.3/10EPSS 1.14%

Last modified

CVE-2026-44590 is a critical-severity vulnerability rated 9.3/10 on the CVSS scale. 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. EPSS estimates a 1.14% chance of exploitation in the next 30 days.

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.

Metrics

CVSS 3.1
9.3/10

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

EPSS Probability
1.14%

62.6th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

References

Timeline

Published
Last Modified
Status
Deferred

Frequently Asked Questions

What is CVE-2026-44590?
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.
How severe is CVE-2026-44590?
CVE-2026-44590 has a CVSS score of 9.3/10 (CRITICAL severity). The EPSS model estimates a 1.14% probability of exploitation in the next 30 days.
How do I fix CVE-2026-44590?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2026-44590?

Run a free Strix scan to check your systems for this vulnerability.

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Source: NVD / NIST