CVE-2026-114463
CVE-2026-114463
This page contains facts from public vulnerability sources. Check the original advisory before updating.
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.
EPSS 0.4%
- Published
- Updated
Affected products and versions
hermes agent
- Versions
- ≥ 0, ≤ 2026.8.19: Affected (custom)
No fix published