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CVE-2026-49987— Repomix: Command Injection (RCE) via `--remote-branch` Argument Injection

Quick assessment

Affected
yamadashy repomix
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.

Kazuki Yamada Repomix是Kazuki Yamada个人开发者开源的一款代码仓库打包与整合工具。 Kazuki Yamada Repomix 1.14.1之前版本存在命令注入漏洞，该漏洞源于src/core/git/gitCommand.ts中execGitShallowClone函数将--remote-branch值直接传递给git fetch和git checkout，未对--end-of-options进行验证，允许--upload-pack或其他Git选项注入，绕过validat

AI Predicted 8.6 Difficulty: Easy EPSS 0.70% · P53

Affected Version Matrix 1

VendorProduct Version RangeStatus
yamadashy repomix < 1.14.1 affected
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I. Basic Information for CVE-2026-49987

Vulnerability Information
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Vulnerability Title
Repomix: Command Injection (RCE) via `--remote-branch` Argument Injection
Source: CVE Program / CVE List V5
Vulnerability Description
Repomix is a tool that packs repositories into AI-friendly files. Prior to 1.14.1, src/core/git/gitCommand.ts execGitShallowClone passes the --remote-branch value directly to git fetch and git checkout without validation or --end-of-options, allowing --upload-pack or other Git option injection that bypasses validateGitUrl() dangerous parameter checks and can execute commands through local or SSH-style transports. This issue is fixed in version 1.14.1.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:A/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
Source: CVE Program / CVE List V5
Vulnerability Type
参数注入或修改
Source: CVE Program / CVE List V5
Vulnerability Title
Kazuki Yamada Repomix 命令注入漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Kazuki Yamada Repomix是Kazuki Yamada个人开发者开源的一款代码仓库打包与整合工具。 Kazuki Yamada Repomix 1.14.1之前版本存在命令注入漏洞，该漏洞源于src/core/git/gitCommand.ts中execGitShallowClone函数将--remote-branch值直接传递给git fetch和git checkout，未对--end-of-options进行验证，允许--upload-pack或其他Git选项注入，绕过validat
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
yamadashy repomix < 1.14.1 -

II. Public POCs for CVE-2026-49987

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III. Intelligence Information for CVE-2026-49987

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Patches & Fixes for CVE-2026-49987 (1)

Vendor Advisories for CVE-2026-49987 (1)

Vendor Pages for CVE-2026-49987 (1)

IV. Related Vulnerabilities

Same product: repomix
Same vendor: yamadashy
Same weakness: CWE-88

V. Comments for CVE-2026-49987

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