CVE-2026-18773

NousResearch hermes-agent Quick run.py _check_slash_access authorization

State: Published
Severity: 5.3 Medium
Published: Aug 4, 2026
Updated: Aug 4, 2026
Reserved: Aug 4, 2026

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.

Scores

CVSS	Score	Vector	Source
4.0	5.3 Medium	CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P	VulDB
3.1	6.3 Medium	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	VulDB
3.0	6.3 Medium	CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L/E:P/RL:X/RC:R	VulDB
2.0	6.5 Medium	AV:N/AC:L/Au:S/C:P/I:P/A:P/E:POC/RL:ND/RC:UR	VulDB

Weaknesses

CWE-863 Incorrect Authorization
CWE-285 Improper Authorization

Affected Products

Product	Versions
hermes-agentNousResearch	2026.6.0Affected 2026.6.1Affected 2026.6.2Affected 2026.6.3Affected 2026.6.4Affected 2026.6.5Affected

References

VDB-385783 | NousResearch hermes-agent Quick run.py _check_slash_access authorizationvdb-entrytechnical-description
VDB-385783 | CTI Indicators (IOB, IOC, IOA)signaturepermissions-required
CVE-2026-18773 | CVE Analysis and Reportthird-party-advisory
Submit #856874 | NousResearch hermes-agent 2026.6.5 Incorrect Authorization (CWE-863)third-party-advisory
https://gist.github.com/YLChen-007/f0036aa1c410b70f5e41272947180645exploit

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