CVE-2026-51867 Missing authorization in n/a

Critical 9.8 Published Updated

Attackers can access or modify data across tenants by manipulating identifiers in the agent router due to missing authorization 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-2026-51867?

CVE-2026-51867 is a critical missing authorization vulnerability in n/a, published on 30 Sep 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.

Official description

agentgpt v.1.0.0 is vulnerable to Incorrect Access Control in next/src/server/api/routers/agentRouter.ts. An externally reachable path accepts a caller-selected object or tenant identifier and reaches a data-access operation without a visible owner, tenant, workspace, or membership binding on that object.

Weakness: CWE-284

Which versions are affected by CVE-2026-51867?

How do I fix CVE-2026-51867?

No fix has been published for CVE-2026-51867 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-2026-51867 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-51867 exists.

Sources

Also known as GHSA-m2qp-332m-87w4.

Is CVE-2026-51867 in your software?

Upload an SBOM and sbomify checks it against every vulnerability here, every day.

Check your SBOMs for free