Vulnerability · Published Oct 15, 2026 · Assigned by VulnCheck
CVE-2026-111322Archon 0.2.13 through 0.11.1 Missing Authentication via /api/* Control API
Critical 9.8
In plain English
A critical-severity missing authentication in Archon from coleam00. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.9% (higher than 60% of all known vulnerabilities).
Severity (CVSS 3.1)9.8Critical
Exploit odds (30 days)0.9%top 40.4% of all CVEs
Exploited in the wildNo reportsCISA SSVC: poc
Attack toolingNoneno public tooling known
Official description
Archon 0.2.13 through 0.11.1 contains a missing authentication vulnerability that allows unauthenticated attackers to access the /api/* control API, which binds to 0.0.0.0 by default. Attackers with network access can send messages to the AI coding agent, which runs with bypassPermissions, to execute commands on the host as the Archon user.
Affected products (as reported)
Weakness: CWE-306 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
References
- https://hackmd.io/@hieuPenguinnn/archon-os-api-missing-authentication-default third-party-advisory
- https://github.com/coleam00/Archon/blob/v0.11.1/packages/server/src/routes/api.ts#L1749-L1756 technical-description
- https://github.com/coleam00/Archon/blob/v0.11.1/packages/server/src/auth/config.ts#L25-L27 technical-description
- https://github.com/coleam00/Archon/blob/v0.11.1/packages/server/src/index.ts#L909 technical-description
- https://github.com/coleam00/Archon product
- VulnCheck Advisory: Archon 0.2.13 through 0.11.1 Missing Authentication via /api/* Control API third-party-advisory