CVE-2026-111653 53AIHub through 0.5.3 Missing Authentication via PUT /api/enterprises/:id
Unauthenticated attackers can overwrite enterprise profiles in 53AIHub, enabling defacement and phishing attacks.
- 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-2026-111653?
CVE-2026-111653 is a medium-severity missing authorization vulnerability in 53AIHub, published on 16 Oct 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
53AIHub through 0.5.3 contains a missing authentication vulnerability that allows unauthenticated attackers to overwrite any enterprise's profile by sending PUT requests to /api/enterprises/:id. Because UpdateEnterprise only enforces checks when IS_SAAS is true, attackers can enumerate sequential enterprise IDs and overwrite logos, display names and branding for defacement and phishing.
Weakness: CWE-306
Which versions are affected by CVE-2026-111653?
How do I fix CVE-2026-111653?
No fix has been published for CVE-2026-111653 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-2026-111653 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-111653 exists.
Sources
Also known as GHSA-8wfx-4q5w-fv72.