What’s Vulnerable › Vulnerabilities

CVE-2026-111322: Archon 0.2.13 through 0.11.1 Missing Authentication via /api/* Control API

• Severity: critical (CVSS 9.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.9% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-10-15 · updated 2026-10-16
• Weakness: CWE-306

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

• coleam00 Archon: from 0.2.13 through 0.11.1

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

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