CVE-2026-67308: Wazuh GitHub Actions Shell Injection via Fork Pull Request

Severity: critical (CVSS 9.3 v4.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.7% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2026-08-01 · updated 2026-09-09
Weakness: CWE-78

Description

Wazuh workflows before 44bf114 contain a shell injection vulnerability in GitHub Actions that allows attackers to execute arbitrary commands by submitting pull requests with crafted VERSION.json files. Attackers can inject shell metacharacters into environment variables that are directly interpolated into run steps, enabling command execution and exfiltration of secrets including GITHUB_TOKEN and AWS credentials on self-hosted runners.

References

https://github.com/wazuh/wazuh/security/advisories/GHSA-95w2-gpvr-q4jh
https://www.vulncheck.com/advisories/wazuh-github-actions-shell-injection-via-fork-pull-request
https://github.com/wazuh/wazuh/security/advisories/GHSA-95w2-gpvr-q4jh

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