CVE-2026-85105
Received Received - Intake

Authorization Bypass in Hermes-Agent Session Management

Publication date: 2026-09-03

Last updated on: 2026-09-03

Assigner: VulDB

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.

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Meta Information

Published
2026-09-03
Last Modified
2026-09-03
Generated
2026-09-03
AI Q&A
2026-09-03
EPSS Evaluated
N/A
NVD
CVE-2026-85105
EUVD
EUVD-2026-70388

Affected Vendors & Products

Showing 1 associated CPE
Vendor Product Version / Range
nousresearch hermes-agent 0.18.0

Helpful Resources

Exploitability

CWE
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KEV
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CWE ID Description
CWE-639 The system's authorization functionality does not prevent one user from gaining access to another user's data or record by modifying the key value identifying the data.
CWE-285 The product does not perform or incorrectly performs an authorization check when an actor attempts to access a resource or perform an action.

Attack-Flow Graph

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Executive Summary

This vulnerability is an authorization bypass flaw in NousResearch hermes-agent 0.18.0. It exists in the _sess_nowait function of the s71.py file, where manipulating the session_id argument allows unauthorized access. The issue can be exploited remotely without requiring user interaction.

Impact Analysis

An attacker could bypass authentication and gain unauthorized access to sensitive functions or data managed by the hermes-agent component. This could lead to data theft, unauthorized actions, or further compromise of the system depending on the agent's role.

Compliance Impact

This vulnerability could lead to unauthorized access to personal or sensitive data, violating confidentiality requirements in GDPR and HIPAA. Organizations using this software may fail compliance audits and face legal penalties due to inadequate access controls.

Mitigation Strategies

Update or patch the NousResearch hermes-agent to the latest version. If no patch is available, consider disabling the affected component or restricting network access to it. Monitor for unauthorized access attempts or unusual session activity.

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