CVE-2026-110616
HIGH
NVD
CVSS Score
8.1
Severity
HIGH
Published
Oct 14, 2026
Vendor
unknown
Description
NullHub through 2026.5.29 contains a missing authentication vulnerability that allows unauthenticated attackers to access the /api/* management API because the auth_token field defaults to null and is never assigned. Attackers sending requests without Authorization or Origin headers to non-loopback listeners can control agent instances, rewrite configurations including provider credentials, and manage cron jobs and MCP servers.
References
- https://github.com/nullclaw/nullhub
- https://github.com/nullclaw/nullhub/blob/v2026.5.29/Dockerfile#L69-L71
- https://github.com/nullclaw/nullhub/blob/v2026.5.29/src/api/settings.zig#L29-L54
- https://github.com/nullclaw/nullhub/blob/v2026.5.29/src/server.zig#L546-L556
- https://hackmd.io/@1ExmmukzRMWN7B4gQ4W-4Q/rJrLma3izg