Missing Authentication Vulnerability in Archon by Coleam
CVE-2026-111322

9.3CRITICAL

Key Information:

Vendor

Coleam00

Status
Archon
Vendor
CVE Published:
15 October 2026

What is CVE-2026-111322?

Archon versions 0.2.13 through 0.11.1 are affected by a vulnerability that allows unauthenticated attackers to exploit the /api/* control API. This API, default bound to 0.0.0.0, enables attackers with network access to communicate with the AI coding agent. Due to the bypassPermissions function, malicious actors can execute commands on the host system as the Archon user, posing significant security risks.

Affected Version(s)

Archon 0.2.13 <= 0.11.1

References

https://hackmd.io/@hieuPenguinnn/archon-os-api-missing-au...
third-party-advisory
https://github.com/coleam00/Archon/blob/v0.11.1/packages/...
technical-description
https://github.com/coleam00/Archon/blob/v0.11.1/packages/...
technical-description

CVSS V4

Score:
9.3
Severity:
CRITICAL
Confidentiality:
High
Integrity:
High
Availability:
High
Attack Vector:
Network
Attack Complexity:
Low
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
None

Timeline

  • Vulnerability published

  • Vulnerability Reserved

Credit

hieuPenguinnn
.