Gitleaks Secret Exfiltration via Non-Hermetic Sprig Template Functions in Report Template Feature (CVE-2026-63728) | HOL Guard CVE

High · CVSS 8.1CVE-2026-63728

Gitleaks Secret Exfiltration via Non-Hermetic Sprig Template Functions in Report Template Feature

Answer in brief

CVE-2026-63728 records a High severity (CVSS 8.1) vulnerability in Gitleaks Secret Exfiltration via Non-Hermetic Sprig Template Functions in Report Template Feature. The current sources do not mark it as known exploited. The current feed maps gitleaks/gitleaks (generic). Check affected ranges and fixed versions before updating.

Analysis pending evidence review

HOL Guard separates source facts from reviewed analysis. See the methodology.

Published Jul 20, 2026Updated Sep 24, 2026Source checked Sep 24, 2026First seen by HOL Sep 24, 2026Material review Sep 24, 2026

Upstream Advisory

Key facts

Risk: High · CVSS 8.1
Exploitation: Not marked as known exploited
Affected software: 1 mapped package or product
Fix availability: Not reported

Why this deserves its current priority

CVSS is 8.1. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.

Analysis status

Analysis pending evidence review

Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.

Affected scope and exposure questions

The current feed maps gitleaks/gitleaks (generic). Check affected ranges and fixed versions before updating.

Mapped affected packages and fixed versions
Package	Affected range	Fixed version
gitleaks/gitleaksgeneric	*	Not reported

Recommended response

Check inventory. Check lockfiles and deployed manifests for gitleaks/gitleaks.
Review the reported fix. Monitor this advisory for an available fix and review any installs of the affected package.

Evidence timeline and material changes

Published upstream
Jul 20, 2026
Evidence: source:cvelist:source_dates:source-dates:record
Source modified
Sep 24, 2026
Evidence: source:cvelist:source_dates:source-dates:record
First seen by HOL
Sep 24, 2026

Sources and claim methodology

Upstream source 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.

Quoted source text, attributed separately from HOL analysis.