Vulnerability · Published Aug 18, 2026 · Assigned by VulnCheck

CVE-2026-75859CodeWhale before 0.8.64 Arbitrary File Read via instructions

High 7.5

In plain English

A high-severity path traversal in CodeWhale from Hmbown. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.5% (higher than 45% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.

Severity (CVSS 3.1)7.5High

Exploit odds (30 days)0.5%top 55.0% of all CVEs

Exploited in the wildNo reportsCISA SSVC: none

Attack toolingNoneno public tooling known

Official description

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.

Affected packages & fixed versions

Ecosystem	Package	Fixed in	Advisory
npm	codewhale	0.8.64	GHSA-62f5-cp2p-vq95
npm	deepseek-tui	0.8.41	GHSA-62f5-cp2p-vq95

Affected products (as reported)

Vendor	Product	Versions
Hmbown	CodeWhale	0.8.8 – before 0.8.41
Hmbown	CodeWhale	0.8.8 – before 0.8.41
Hmbown	CodeWhale	0.8.41 – before 0.8.64
Hmbown	CodeWhale	0.8.41 – before 0.8.64

Weakness: CWE-22 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

References

GitHub Security Advisory (GHSA-62f5-cp2p-vq95) vendor-advisory
Patch Commit patch
VulnCheck Advisory: CodeWhale before 0.8.64 Arbitrary File Read via instructions third-party-advisory