CVE-2026-114463 CVE-2026-114463

Not scored Published 21 Oct 2026 Updated 21 Oct 2026

Exploited in the wild: Not known
Fix: None listed

What is CVE-2026-114463?

CVE-2026-114463 is a vulnerability in Nous Research Hermes Agent, published on 21 Oct 2026.

Official description

The webhook platform gateway in Nous Research Hermes Agent versions builds the session chat_id as webhook:{route_name}:{delivery_id} and re-derives the authorizing route by splitting that string, so a route name containing a ":" resolves toolset authorization to a different, higher-privileged prefix route than the one authenticated, which allows a remote attacker with the target HMAC to gain that higher-privileged route's toolsets.

Which versions are affected by CVE-2026-114463?

How do I fix CVE-2026-114463?

No fix has been published for CVE-2026-114463 yet. Limit exposure of the affected software until one is available.

Is CVE-2026-114463 being exploited?

There is no known exploitation of CVE-2026-114463 in the wild and no public exploit code.

Sources

Also known as GHSA-4h98-2jhp-qgm2.