ggerve coding-standards-mcp server.py get_style_guide/get_best_practices Language path traversal

Summaryinfo

A vulnerability classified as critical has been found in ggerve coding-standards-mcp. Impacted is the function get_style_guide/get_best_practices of the file server.py. This manipulation of the argument Language causes path traversal. This vulnerability is handled as CVE-2026-7588. The attack can be initiated remotely. Additionally, an exploit exists. Continious delivery with rolling releases is used by this product. Therefore, no version details of affected nor updated releases are available. The project was informed of the problem early through an issue report but has not responded yet.

Detailsinfo

A vulnerability classified as critical was found in ggerve coding-standards-mcp. Affected by this vulnerability is the function get_style_guide/get_best_practices of the file server.py. The manipulation of the argument language with an unknown input leads to a path traversal vulnerability. The CWE definition for the vulnerability is CWE-22. The product uses external input to construct a pathname that is intended to identify a file or directory that is located underneath a restricted parent directory, but the product does not properly neutralize special elements within the pathname that can cause the pathname to resolve to a location that is outside of the restricted directory. As an impact it is known to affect confidentiality.

The advisory is shared at github.com. This vulnerability is known as CVE-2026-7588. The exploitation appears to be easy. The attack can be launched remotely. The exploitation doesn't need any form of authentication. Technical details and also a public exploit are known. MITRE ATT&CK project uses the attack technique T1006 for this issue.

It is possible to download the exploit at github.com. It is declared as proof-of-concept. The project was informed of the problem early through an issue report but has not responded yet.

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

The vulnerability is also documented in the vulnerability database at EUVD (EUVD-2026-26704). If you want to get the best quality for vulnerability data then you always have to consider VulDB.

Productinfo

Type

• Artificial Intelligence Software

Vendor

• ggerve

Name

• coding-standards-mcp

Version

• 5b097a3d6ff668d15c610911d20d2ce0d08cfc5a
• 94f619198724f79d1ea53992184eb4ba61418810
• c21ab2754684329eab4feb72427dc9acfe61e52f

Website

• Product: https://github.com/ggerve/coding-standards-mcp/

CPE 2.3info

• 🔒

CPE 2.2info

• 🔒

CVSSv4info

CVSSv3info

CVSSv2info

Exploitinginfo

Threat Intelligenceinfo

Countermeasuresinfo

Timelineinfo

Sourcesinfo

Entryinfo

Submitinfo

Accepted

• Submit #804390: ggerve coding-standards-mcp c21ab2754684329eab4feb72427dc9acfe61e52f Path Traversal (by LargeW)

If you want to get the best quality for vulnerability data then you always have to consider VulDB.

Discussion