CVE-2026-111322
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.
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (0.89%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
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.
- CVSS 4.0
- 9.3 CRITICALCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/M
- EPSS
- 0.89% probability · 59th percentile
- Public exploits
- None in Exploit-DB
- CISA KEV
- Not listed
- Weakness
- CWE-306
- Source
- disclosure@vulncheck.com
EPSS moved from 0.7% on 16 October 2026 to 0.9% on 26 October 2026.
References
- https://github.com/coleam00/Archon
- https://github.com/coleam00/Archon/blob/v0.11.1/packages/server/src/auth/config.ts#L25-L27
- https://github.com/coleam00/Archon/blob/v0.11.1/packages/server/src/index.ts#L909
- https://github.com/coleam00/Archon/blob/v0.11.1/packages/server/src/routes/api.ts#L1749-L1756
- https://hackmd.io/@hieuPenguinnn/archon-os-api-missing-authentication-default
- https://www.vulncheck.com/advisories/archon-0.2.13-through-0.11.1-missing-authentication-via-api-control-api
- https://hackmd.io/@hieuPenguinnn/archon-os-api-missing-authentication-default
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.