CodeWhale before 0.8.64 Arbitrary File Read via instructions

published 2026-08-18 2 mo ago modified 2026-10-22 17 d ago also GHSA-62f5-cp2p-vq95 , EUVD-2026-60966

cvss: 7.5; version 3.1, CNA
cisa kev: Not listed; not in CISA's catalog
epss: 0.5%; EPSS 0.5% chance of exploitation in 30 days, percentile 45%
public exploits: 0; none known

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.

Patch / fix

fixed in 4 links 1

npm deepseek-tui 0.8.41
crates.io codewhale-tui 0.8.64
npm codewhale 0.8.64
Hmbown CodeWhale 0.8.41, 0.8.64

github.com/Hmbown/CodeWhale@4356335 commit

CISA SSVC

Exploitation: none
Automatable: yes
Technical impact: partial
Assessed: 2 mo ago (2026-08-20)

Exploit prediction

0.53% chance of exploitation in the next 30 days, higher than 45% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by	version	score	vector
CNA	4.0	8.7	CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N
CNA	3.1	7.5	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
CNA	4.0	8.7	CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
GitHub	3.1	7.5	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

Affected packages

ecosystem	package	affected	fixed in
crates.io	deepseek-tui	>=0.8.8	no fix listed
npm	deepseek-tui	>=0.8.8, <0.8.41	0.8.41
crates.io	codewhale-tui	>=0.8.41, <0.8.64	0.8.64
npm	codewhale	>=0.8.41, <0.8.64	0.8.64

Affected products

Hmbown CodeWhale

Classification

Weakness

CWE-22 Improper Limitation of a Pathname to a Restricted Directory
CWE-200 Exposure of Sensitive Information to an Unauthorized Actor

References

github.com /Hmbown/CodeWhale/commit/43563356b98c6b993085554da82e77370160a31c
patch, web
github.com /Hmbown/CodeWhale/security/advisories/GHSA-62f5-cp2p-vq95
vendor-advisory, web
vulncheck.com /advisories/codewhale-before-arbitrary-file-read-via-instructions
third-party-advisory, web
nvd.nist.gov /vuln/detail/CVE-2026-75859
advisory
github.com /Hmbown/CodeWhale
package

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.

Summary