CVE-2026-85105: Authorization Bypass in NousResearch hermes-agent
Description
A flaw has been found in NousResearch hermes-agent 0.18.0. Affected by this issue is the function _sess_nowait of the file s71.py of the component Session Management. This manipulation of the argument session_id causes authorization bypass. The attack can be initiated remotely. The vendor was contacted early about this disclosure but did not respond in any way.
CVSS v4.0
Score 6.9medium
Affected software
NousResearch
hermes-agent
cpe:2.3:a:nousresearch:hermes-agent:*:*:*:*:*:*:*:*AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
The vulnerability CVE-2026-85105 affects NousResearch hermes-agent version 0.18.0. It arises from improper handling of the session_id argument in the _sess_nowait function of the s71.py file within the Session Management component. This flaw allows remote attackers to bypass authorization mechanisms, potentially gaining unauthorized access. The vendor was contacted but did not provide any response or patch. No known exploits are currently reported in the wild.
Potential Impact
Successful exploitation of this vulnerability allows an unauthenticated remote attacker to bypass authorization controls in the hermes-agent software. This could lead to unauthorized access to protected resources or functionality within the affected system. The impact is rated medium based on the CVSS score of 6.9.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Since the vendor has not responded and no patch is available, users should monitor official channels for updates. Until a fix is released, consider restricting network access to the hermes-agent service to trusted hosts only to reduce exposure.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- VulDB
- Date Reserved
- 2026-09-03T06:47:10.627Z
- Cvss Version
- 4.0
- State
- PUBLISHED
Threat ID: 6a995881acd9273b49d845eb
Added to database: 09/03/2026, 11:22:41 UTC
Last enriched: 09/07/2026, 13:17:13 UTC
Last updated: 10/19/2026, 06:48:20 UTC
Views: 195
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