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.
History

Fri, 30 Oct 2026 20:00:00 +0000

Type Values Removed Values Added
Weaknesses CWE-284

Fri, 30 Oct 2026 16:30:00 +0000

Type Values Removed Values Added
Weaknesses CWE-863
Metrics cvssV3_1

{'score': 7.5, 'vector': 'CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H'}

ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'poc', 'Technical Impact': 'total'}, 'version': '2.0.3'}


Thu, 22 Oct 2026 12:00:00 +0000

Type Values Removed Values Added
First Time appeared Nousresearch
Nousresearch hermes-agent
Vendors & Products Nousresearch
Nousresearch hermes-agent

Thu, 22 Oct 2026 08:00:00 +0000

Type Values Removed Values Added
Weaknesses CWE-284

Thu, 22 Oct 2026 01:45:00 +0000

Type Values Removed Values Added
Weaknesses CWE-284

Wed, 21 Oct 2026 21:15:00 +0000

Type Values Removed Values Added
Weaknesses CWE-284

Wed, 21 Oct 2026 17:15:00 +0000

Type Values Removed Values Added
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.
Title CVE-2026-114463
References

cve-icon MITRE

Status: PUBLISHED

Assigner: certcc

Published: 2026-10-21T15:01:02.634Z

Updated: 2026-10-30T15:16:36.992Z

Reserved: 2026-10-21T15:00:19.795Z

Link: CVE-2026-114463

cve-icon Vulnrichment

Updated: 2026-10-30T15:15:26.771Z

cve-icon NVD

Status : Deferred

Published: 2026-10-21T16:17:34.087

Modified: 2026-10-30T16:17:39.933

Link: CVE-2026-114463

cve-icon Redhat

No data.