Vulnerability Description
Gitleaks prior to 8.30.1 contains a template injection vulnerability that allows attackers who can supply or influence report templates to read arbitrary environment variables and exfiltrate sensitive data by leveraging non-hermetic Sprig template functions. Attackers can craft malicious report templates using the env, expandenv, and getHostByName functions to extract credentials, tokens, and API keys from the host process and exfiltrate them through DNS queries, including secrets discovered during the scan itself.
CVSS Score
MEDIUM
Related Weaknesses (CWE)
References
- https://fatihhcelik.github.io/posts/gitleaks-abusing-sprig-for-exfiltration/#the
- https://github.com/gitleaks/gitleaks
- https://github.com/gitleaks/gitleaks/commit/83d9cd684c87d95d656c1458ef04895a7f1c
- https://www.vulncheck.com/advisories/gitleaks-secret-exfiltration-via-non-hermet
- https://fatihhcelik.github.io/posts/gitleaks-abusing-sprig-for-exfiltration/#the
FAQ
What is CVE-2026-63728?
CVE-2026-63728 is a vulnerability with a CVSS score of 6.3 (MEDIUM). Gitleaks prior to 8.30.1 contains a template injection vulnerability that allows attackers who can supply or influence report templates to read arbitrary environment variables and exfiltrate sensitive...
How severe is CVE-2026-63728?
CVE-2026-63728 has been rated MEDIUM with a CVSS base score of 6.3/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-63728?
Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.