Vulnerability · Published Apr 29, 2026 · Assigned by GitHub_M

CVE-2026-26015Unauthenticated RCE in DocsGPT MCP STDIO Configuration

Critical 10.0

In plain English

A critical-severity command injection in DocsGPT from arc53. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 1.2% (higher than 68% of all known vulnerabilities).

Severity (CVSS 4.0)10.0Critical
Exploit odds (30 days)1.2%top 32.5% of all CVEs
Exploited in the wildNo reportsCISA SSVC: poc
Attack toolingNoneno public tooling known

Official description

DocsGPT is a GPT-powered chat for documentation. From version 0.15.0 to before version 0.16.0, an attacker accessing both the official DocsGPT website or any local and public deployment, can craft a malicious payload bypassing the "MCP test" behavior to achieve arbitrary remote code execution (RCE). This issue has been patched in version 0.16.0.

Affected products (as reported)

VendorProductVersions
arc53 DocsGPT >= 0.15.0, < 0.16.0

Weakness: CWE-77 · Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H

References