Path Traversal in Hmbown Codewhale
CVE-2026-75859
CodeWhale versions before 0.8.64 fail to validate file paths in the project config instructions field, allowing attackers to read arbitrary files on the victim's system. A malicious .codewhale/config.toml file in a cloned repository can specify paths outside the workspace that are read and injected into the AI system prompt for exfiltration.
Vulnerability class: Path Traversal (Directory Traversal)
CVSS v3 metric
CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N.
Affected products
Weakness classification (CWE)
References
- disclosure@vulncheck.com (vendor-advisory)
- disclosure@vulncheck.com (patch)
- disclosure@vulncheck.com (third-party-advisory)
Frequently asked questions
- What is CVE-2026-75859?
- CVE-2026-75859 is a high-severity vulnerability in Hmbown Codewhale, classified under Path Traversal. CVSS score: 7.5/10. Published 2026-08-18.
- How severe is CVE-2026-75859?
- High severity. CVSS v3 base score is 7.5 out of 10.