Vulnerability · Published Aug 4, 2026 · Assigned by VulDB
CVE-2026-18773NousResearch hermes-agent Quick run.py _check_slash_access authorization
Medium 6.3
In plain English
A medium-severity incorrect authorization in hermes-agent from NousResearch. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.3% (higher than 28% of all known vulnerabilities).
Official description
A vulnerability was detected in NousResearch hermes-agent up to 2026.6.5. Affected by this issue is the function _check_slash_access of the file gateway/run.py of the component Quick Command Handler. The manipulation results in incorrect authorization. The attack can be launched remotely. The exploit is now public and may be used. The vendor was contacted early about this disclosure but did not respond in any way.
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| NousResearch | hermes-agent | 2026.6.02026.6.12026.6.22026.6.32026.6.42026.6.5 |
Weakness: CWE-863, CWE-285 · Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L/E:P/RL:X/RC:R
References
- VDB-385783 | NousResearch hermes-agent Quick run.py _check_slash_access authorization vdb-entry, technical-description
- VDB-385783 | CTI Indicators (IOB, IOC, IOA) signature, permissions-required
- CVE-2026-18773 | CVE Analysis and Report third-party-advisory
- Submit #856874 | NousResearch hermes-agent 2026.6.5 Incorrect Authorization (CWE-863) third-party-advisory
- https://gist.github.com/YLChen-007/f0036aa1c410b70f5e41272947180645 exploit