Auth bypass in Nousresearch Hermes-Agent
CVE-2026-85105
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.
EPSS: 0.004 (30.3th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 7.3 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L.
Affected products
- Nousresearch Hermes-agent — versions 0.18.0
Weakness classification (CWE)
References
- cna@vuldb.com (third-party-advisory)
- cna@vuldb.com (third-party-advisory)
- cna@vuldb.com (technical-description, vdb-entry)
- cna@vuldb.com (signature, permissions-required)
Frequently asked questions
- What is CVE-2026-85105?
- CVE-2026-85105 is a high-severity vulnerability in Nousresearch Hermes-Agent, classified under Improper Authorization. CVSS score: 7.3/10. Published 2026-09-03.
- How severe is CVE-2026-85105?
- High severity. CVSS v3 base score is 7.3 out of 10.