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Vulnerability · Published Mar 29, 2026 · Assigned by VulDB

CVE-2026-5023DeDeveloper23 codebase-mcp RepoMix codebase.ts saveCodebase os command injection

Medium 5.3

In plain English

A medium-severity OS command injection in codebase-mcp from DeDeveloper23. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.7% (higher than 54% of all known vulnerabilities).

Severity (CVSS 3.1)5.3Medium
Exploit odds (30 days)0.7%top 45.8% of all CVEs
Exploited in the wildNo reportsCISA SSVC: poc
Attack toolingNoneno public tooling known

Official description

A vulnerability has been found in DeDeveloper23 codebase-mcp up to 3ec749d237dd8eabbeef48657cf917275792fde6. This vulnerability affects the function getCodebase/getRemoteCodebase/saveCodebase of the file src/tools/codebase.ts of the component RepoMix Command Handler. Such manipulation leads to os command injection. The attack needs to be performed locally. The exploit has been disclosed to the public and may be used. This product implements a rolling release for ongoing delivery, which means version information for affected or updated releases is unavailable. The project was informed of the problem early through an issue report but has not responded yet.

Affected products (as reported)

VendorProductVersions
DeDeveloper23 codebase-mcp 3ec749d237dd8eabbeef48657cf917275792fde6

Weakness: CWE-78, CWE-77 · Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L/E:P/RL:X/RC:R

References