CVE-2026-75859 PUBLISHED

CodeWhale before 0.8.64 Arbitrary File Read via instructions

Assigner: VulnCheck
Reserved: 18.08.2026 Published: 18.08.2026 Updated: 18.08.2026

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.

CVSS Vector: 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
CVSS Score: 8.7

Exploitability Metrics		Vulnerable System Impact Metrics		Subsequent System Impact Metrics
Attack Vector	Network	Confidentiality	High	Confidentiality	None
Attack Complexity	Low	Integrity	None	Integrity	None
Attack Requirements	None	Availability	None	Availability	None
Privileges Required	None
User Interaction	None

CVSS 4.0

CVSS Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
CVSS Score: 7.5

Attack Vector	Network	Scope	Unchanged
Attack Complexity	Low	Confidentiality Impact	High
Privileges Required	None	Integrity Impact	None
User Interaction	None	Availability Impact	None

CVSS 3.1

Product Status

Vendor	Hmbown
Product	CodeWhale
Versions	Default: unaffected affected from 0.8.8 to 0.8.41 (excl.) Version 0.8.41 is unaffected

Vendor	Hmbown
Product	CodeWhale
Versions	Default: unaffected affected from 0.8.8 to 0.8.41 (excl.) Version 0.8.41 is unaffected

Vendor	Hmbown
Product	CodeWhale
Versions	Default: unaffected affected from 0.8.41 to 0.8.64 (excl.) Version 0.8.64 is unaffected

Vendor	Hmbown
Product	CodeWhale
Versions	Default: unaffected affected from 0.8.41 to 0.8.64 (excl.) Version 0.8.64 is unaffected

Credits

sondt99 reporter
dungNHVhust reporter
sai-sh reporter

References

Problem Types

Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal') CWE