CVE-2026-110616 NullHub through 2026.5.29 Missing Authentication for /api Management API
Unauthenticated attackers can access the management API to control agents, rewrite configurations, and manage jobs due to missing authentication checks.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-110616?
CVE-2026-110616 is a critical missing authorization vulnerability in nullclaw NullHub, published on 14 Oct 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official 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.
Weakness: CWE-306
Which versions are affected by CVE-2026-110616?
How do I fix CVE-2026-110616?
No fix has been published for CVE-2026-110616 yet. Limit exposure of the affected software until one is available.
Upgrade, and check permissions on every request on the server, not only in the interface. More about Missing authorization.
Is CVE-2026-110616 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-110616 exists.
Sources
Also known as GHSA-jrqq-fxff-7f78.