Vulnerability details
CVE-2026-111322
coleam00 Archon
Archon 0.2.13 through 0.11.1 Missing Authentication via /api/* Control API
CVSS 4.0
9.3Critical
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.
CVSS scores
| Score | Version | Source | Vector |
|---|---|---|---|
| 9.3Critical | 4.0 | CVEProject cvelistV5 (CNA) (VulnCheck) | CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N |
| 9.8Critical | 3.1 | CVEProject cvelistV5 (CNA) (VulnCheck) | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H |
Affected products
| Vendor | Product | Versions | Source |
|---|---|---|---|
| coleam00 | Archon | 0.2.13 ≤ v ≤ 0.11.1 | CVEProject cvelistV5 (CNA) |
References and advisories
6- 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
- https://www.vulncheck.com/advisories/archon-0.2.13-through-0.11.1-missing-authentication-via-api-control-api third-party-advisory
- https://hackmd.io/@hieuPenguinnn/archon-os-api-missing-authentication-default third-party-advisory
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Details
- Published
- 2026-10-16
- Last updated
- 2026-10-16
- State
- Published
- Assigner (CNA)
- VulnCheck
- Kolun priority
- 29 · Low
Exploit prediction (EPSS)
0.89%
Probability of exploitation in 30 days
59.6%
Percentile (among all CVEs)
SSVC assessment (CISA)
- Automatable
- Yes
- Exploitation
- Proof of concept
- Technical impact
- Total
Weaknesses (CWE)
- CWE-306Missing Authentication for Critical Function