Advisories

NullHub through 2026.5.29 Missing Authentication for /api Management API

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Severity
critical
Date
Affecting
  • NullHub <= 2026.5.29

CWE
  • CWE-306 Missing Authentication for Critical Function
CVSS
9.2
CVSS V4 Vector
CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N
Credit
hieuPenguinnn
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.

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