Vulnerability 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.
CVSS Score
HIGH
Related Weaknesses (CWE)
References
- https://github.com/NousResearch/hermes-agent/pull/115285
- https://github.com/NousResearch/hermes-agent/releases/tag/v0.22.2
- https://github.com/pinarsadioglu/security-advisories/blob/main/webhook-route-aut
- https://github.com/pinarsadioglu/security-advisories/blob/main/webhook-route-aut
FAQ
What is CVE-2026-114463?
CVE-2026-114463 is a vulnerability with a CVSS score of 7.5 (HIGH). 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...
How severe is CVE-2026-114463?
CVE-2026-114463 has been rated HIGH with a CVSS base score of 7.5/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-114463?
Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.