CVE-2026-18773
5.3
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
Summary
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 Software
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| NousResearch | hermes-agent | 2026.6.0 | affected |
| NousResearch | hermes-agent | 2026.6.1 | affected |
| NousResearch | hermes-agent | 2026.6.2 | affected |
| NousResearch | hermes-agent | 2026.6.3 | affected |
| NousResearch | hermes-agent | 2026.6.4 | affected |
| NousResearch | hermes-agent | 2026.6.5 | affected |
Weaknesses
- CWE-863: Incorrect Authorization
- CWE-285: Improper Authorization
ADP Enrichment
CISA ADP Vulnrichment
- SSVC:
- Exploitation: poc
- Automatable: no
- Technical Impact: partial
References
- https://vuldb.com/vuln/385783
- https://vuldb.com/vuln/385783/cti
- https://vuldb.com/cve/CVE-2026-18773
- https://vuldb.com/submit/856874
- https://gist.github.com/YLChen-007/f0036aa1c410b70f5e41272947180645
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