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CVE-2026-63728— Gitleaks Secret Exfiltration via Non-Hermetic Sprig Template Functions in Report Template Feature

Quick assessment

Affected

gitleaks gitleaks

Exploitation

No confirmed in-the-wild exploitation; assess based on exposure

Recommended action

Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Gitleaks Gitleaks是Gitleaks组织开源的一款代码仓库密钥扫描工具。 Gitleaks 8.30.1之前版本存在代码注入漏洞，该漏洞源于包含模板注入漏洞，允许通过env、expandenv和getHostByName函数读取任意环境变量并通过DNS查询外敏感数据。

CVSS 6.3 · Medium EPSS 0.21% · P10 Updated Sep 28, 2026

Possible ATT&CK Techniques 3 AI

T1005 · Data from Local System T1048 · Exfiltration Over Alternative Protocol T1530 · Data from Cloud Storage

Affected Version Matrix 1

Vendor	Product	Version Range	Status
gitleaks	gitleaks	`< 8.30.1`	affected

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I. Basic Information for CVE-2026-63728

Vulnerability Information

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Vulnerability Title

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

Source: CVE Program / CVE List V5

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.

Source: CVE Program / CVE List V5

CVSS Information

CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:C/C:H/I:N/A:N

Source: CVE Program / CVE List V5

Vulnerability Type

CWE-1336

Source: CVE Program / CVE List V5

Vulnerability Title

Gitleaks 代码注入漏洞

Source: CNNVD (China National Vulnerability Database)

Vulnerability Description

Source: CNNVD (China National Vulnerability Database)

CVSS Information

N/A

Source: CNNVD (China National Vulnerability Database)

Vulnerability Type

N/A

Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor	Product	Affected Versions	CPE	Subscribe
gitleaks	gitleaks	0 ~ 8.30.1	-

II. Public POCs for CVE-2026-63728

#	POC Description	Source Link	Shenlong Link

AI-Generated POC Premium

No public POC found.

III. Intelligence Information for CVE-2026-63728

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Security Blog Posts for CVE-2026-63728 (1)

🔗 Gitleaks: Abusing Sprig Template Functions for Secret Exfiltration | Fatih's Blog Read full article

News Coverage for CVE-2026-63728 (1)

🔗 Gitleaks Secret Exfiltration via Non-Hermetic Sprig Template Functions in Report Template Feature | Advisories | VulnCheck Read full article third-party-advisory

https://www.cve.org/CVERecord?id=CVE-2026-63728

IV. Related Vulnerabilities

Same weakness: CWE-1336