CVE-2026-26015criticalCWE-77

CVE-2026-26015: critical vulnerability in arc53 DocsGPT

Unauthenticated RCE in DocsGPT MCP STDIO Configuration

Published · Updated

28Vexday Risk Score

No sign of exploitation. No public exploitation artifact known so far.

ssvc Trackcvss 10epss 1.5%
exploitation probability
1.5%top 26% of all CVEs
observed exploitation
nono source reports it
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.
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
Affected products
arc53 · DocsGPT
Related CVEs — arc53 DocsGPT

In the same product, most dangerous first.

CVE-2024-31451MEDIUMLimited file write in routes.py (GHSL-2023-250)EPSS 0.6%CVE-2026-91201MEDIUMDocsGPT through 0.20.0 OAuth Token Disclosure via Wildcard postMessageEPSS 0.2%CVE-2026-13483LOWarc53 DocsGPT Credential Storage encryption.py encrypt_credentials data authenticityEPSS 0.1%
References
https://github.com/arc53/DocsGPT/releases/tag/0.16.0https://github.com/arc53/DocsGPT/security/advisories/GHSA-gcrq-f296-2j74https://www.ox.security/blog/mcp-supply-chain-advisory-rce-vulnerabilities-across-the-ai-ecosystem/https://www.ox.security/blog/the-mother-of-all-ai-supply-chains-critical-systemic-vulnerability-at-the-core-of-the-mcp/