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

What is CVE-2026-75913?

CVE-2026-75913 is a high-severity command injection vulnerability in Hmbown CodeWhale, published on 18 Aug 2026. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.

Official description

CodeWhale versions >= 0.3.27 and < 0.8.64 (published as deepseek-tui >= 0.3.27 and < 0.8.41 on npm and 0.3.27 through 0.8.41 on crates.io, and as codewhale / codewhale-tui >= 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 codewhale / codewhale-tui 0.8.64 by adding rev validation; the deprecated deepseek-tui crate has no fixed release.

Weakness: CWE-73

Which versions are affected by CVE-2026-75913?

8 open source packages ship an affected version, including codewhale-tui, deepseek-tui and codewhale.

How do I fix CVE-2026-75913?

Upgrade codewhale-tui to 0.8.64 or later.

Upgrade, and pass arguments to programs as a list instead of through a shell. More about Command injection.

Is CVE-2026-75913 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-75913 exists.

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as GHSA-7j5w-7r7x-9v27.