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CVE-2026-75913— CodeWhale before 0.8.64 Argument Injection via git_show

Quick assessment

Affected
Hmbown CodeWhale
Exploitation
Public or AI PoC available; prioritize validation
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Hunter Bown CodeWhale是Hunter Bown个人开发者的一个开源编程智能体。 Hunter Bown CodeWhale 0.8.41及之后版本和0.8.64之前版本存在输入验证错误漏洞，该漏洞源于git_show工具对模型提供的rev参数未经验证直接传入git show命令，缺少--end-of-options哨兵，可能导致攻击者通过恶意仓库结合提示注入以调用用户权限进行任意文件写入，针对敏感文件如~/.ssh/authorized_keys、~/.bashrc或~/.gitcon

CVSS 9.3 · Critical EPSS 0.33% · P26

Affected Version Matrix 8

VendorProduct Version RangeStatus
Hmbown CodeWhale 0.3.27< 0.8.41 affected
0.8.41 unaffected
0.3.27< 0.8.41 affected
0.8.41 unaffected
0.8.41< 0.8.64 affected
0.8.64 unaffected
0.8.41< 0.8.64 affected
0.8.64 unaffected
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I. Basic Information for CVE-2026-75913

Vulnerability Information
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Vulnerability Title
CodeWhale before 0.8.64 Argument Injection via git_show
Source: CVE Program / CVE List V5
Vulnerability Description
CodeWhale (codewhale / codewhale-tui) versions >= 0.8.41 and < 0.8.64 contain an argument injection vulnerability in the git_show tool. The model-supplied rev parameter is passed unvalidated into the git show argv without an --end-of-options sentinel, so a value beginning with --output= is interpreted as a git flag. Because the tool is registered as auto-approved and advertised as read-only, an attacker (via a malicious repository combined with prompt injection) can cause an unprompted arbitrary file write at the privilege of the invoking user, targeting sensitive files such as ~/.ssh/authorized_keys, ~/.bashrc, or ~/.gitconfig. Fixed in 0.8.64 by adding rev validation.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:N/I:H/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
文件名或路径的外部可控制
Source: CVE Program / CVE List V5
Vulnerability Title
Hunter Bown CodeWhale 输入验证错误漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Hunter Bown CodeWhale是Hunter Bown个人开发者的一个开源编程智能体。 Hunter Bown CodeWhale 0.8.41及之后版本和0.8.64之前版本存在输入验证错误漏洞，该漏洞源于git_show工具对模型提供的rev参数未经验证直接传入git show命令，缺少--end-of-options哨兵，可能导致攻击者通过恶意仓库结合提示注入以调用用户权限进行任意文件写入，针对敏感文件如~/.ssh/authorized_keys、~/.bashrc或~/.gitcon
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
Hmbown CodeWhale 0.3.27 ~ 0.8.41 -
Hmbown CodeWhale 0.3.27 ~ 0.8.41 -
Hmbown CodeWhale 0.8.41 ~ 0.8.64 -
Hmbown CodeWhale 0.8.41 ~ 0.8.64 -

II. Public POCs for CVE-2026-75913

# POC Description Source Link Shenlong Link
AI-Generated POC Premium
Qwen3.6-35B-A3B · 6878 chars
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Vulnerability reproduction recording (real sandbox build + trigger, exclusive)
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Exploit chain & mitigation
POC zip download
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III. Intelligence Information for CVE-2026-75913

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Patches & Fixes for CVE-2026-75913 (1)

Vendor Advisories for CVE-2026-75913 (2)

Same Patch Batch · Hmbown · 2026-08-18 · 9 CVEs total

CVE-2026-75856 8.6 HIGH CodeWhale before 0.8.64 SSRF Bypass via DNS Pinning TOCTOU
CVE-2026-75858 7.8 HIGH CodeWhale rlm_eval before 0.8.64 Remote Code Execution
CVE-2026-75911 7.8 HIGH CodeWhale before 0.8.64 Remote Code Execution via allow_shell
CVE-2026-75915 7.5 HIGH CodeWhale before 0.8.64 Environment Variable Leak via js_execution
CVE-2026-75914 7.5 HIGH CodeWhale before 0.8.64 Path Traversal via image_analyze symlink
CVE-2026-75859 7.5 HIGH CodeWhale before 0.8.64 Arbitrary File Read via instructions
CVE-2026-75912 7.4 HIGH CodeWhale before 0.8.64 Argument Injection via git_blame
CVE-2026-75857 7.0 HIGH CodeWhale before 0.8.64 Privilege Escalation via exec_shell_interact

IV. Related Vulnerabilities

Same product: CodeWhale
Same vendor: Hmbown
Same weakness: CWE-73

V. Comments for CVE-2026-75913

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