What is CVE-2026-75911?

CVE-2026-75911 is a high-severity vulnerability in Hmbown Codewhale, classified under Code Injection. CVSS score: 7.8/10. Published 2026-08-18.

How severe is CVE-2026-75911?

High severity. CVSS v3 base score is 7.8 out of 10.

RCE in Hmbown Codewhale

CVE-2026-75911

CodeWhale versions before 0.8.64 fail to properly validate the allow_shell configuration parameter from project config files, allowing attackers to enable arbitrary shell command execution by committing a malicious .codewhale/config.toml file to a repository. When a user clones and opens the repository in CodeWhale, the AI model gains access to exec_shell and task_shell tools, enabling execution of arbitrary shell commands on the victim's machine without explicit user consent.

Vulnerability class: RCE (Remote Code Execution)

CVSS v3 metric

CVSS v3 base score 7.8 (High). Vector: CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H.

Affected products

Hmbown Codewhale

Weakness classification (CWE)

CWE-94 — Code Injection

References

GitHub Security Advisory (GHSA-gx45-xrj5-g6c4) (vendor-advisory)
Patch Commit (patch)
VulnCheck Advisory: CodeWhale before 0.8.64 Remote Code Execution via allow_shell (third-party-advisory)

Frequently asked questions

What is CVE-2026-75911?: CVE-2026-75911 is a high-severity vulnerability in Hmbown Codewhale, classified under Code Injection. CVSS score: 7.8/10. Published 2026-08-18.
How severe is CVE-2026-75911?: High severity. CVSS v3 base score is 7.8 out of 10.