What is CVE-2026-63728?

CVE-2026-63728 is a medium-severity vulnerability in Gitleaks, classified under Improper Neutralization of Special Elements Used in a Template Engine. CVSS score: 6.3/10. Published 2026-07-21.

How severe is CVE-2026-63728?

Medium severity. CVSS v3 base score is 6.3 out of 10.

Vulnerability in Gitleaks

CVE-2026-63728

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…

CVSS v3 metric

CVSS v3 base score 6.3 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:C/C:H/I:N/A:N.

Affected products

Gitleaks — versions 0

Weakness classification (CWE)

CWE-1336 — Improper Neutralization of Special Elements Used in a Template Engine

References

disclosure@vulncheck.com (product)
disclosure@vulncheck.com (patch)
disclosure@vulncheck.com
disclosure@vulncheck.com (third-party-advisory)

Frequently asked questions

What is CVE-2026-63728?: CVE-2026-63728 is a medium-severity vulnerability in Gitleaks, classified under Improper Neutralization of Special Elements Used in a Template Engine. CVSS score: 6.3/10. Published 2026-07-21.
How severe is CVE-2026-63728?: Medium severity. CVSS v3 base score is 6.3 out of 10.