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Vulnerability record · CVE-2026-63728 · published 21 July 2026

CVE-2026-63728: Gitleaks prior to 8.30.1 contains a template injection vulnerability that allows attackers who can supply or i…

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.

8.1 CVSS 4.0 High EPSS 0.21% · top 90.4% CWE-1336 · CWE-1336 Awaiting Analysis
8.1CVSS 4.0 base score
0.21%EPSS exploitation probability, 30 days
NoNot in CISA KEV
0Affected product versions listed by NVD
5References
22 Jul 2026Last modified by NVD

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:4.0/AV:L/AC:L/AT:N/PR:N/UI:A/VC:H/VI:N/VA:N/SC:H/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:

References

LinkTags
https://fatihhcelik.github.io/posts/gitleaks-abusing-sprig-for-exfiltration/#the-fix
https://github.com/gitleaks/gitleaks
https://github.com/gitleaks/gitleaks/commit/83d9cd684c87d95d656c1458ef04895a7f1cbd8e
https://www.vulncheck.com/advisories/gitleaks-secret-exfiltration-via-non-hermetic-sprig-template-functions-in-report-te
https://fatihhcelik.github.io/posts/gitleaks-abusing-sprig-for-exfiltration/#the-fix

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Source: NIST National Vulnerability Database (record CVE-2026-63728), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.