CVE-2026-18993: medium-severity vulnerability in NousResearch hermes-agent
NousResearch hermes-agent Memory Toolset model_tools.py access control
Published
E-mail alert when it lands in KEV, gets a public PoC or its score goes up.
33Vexday Risk Score
No sign of exploitation. It has a public proof of concept.
ssvc Attendcvss 5.3epss 0.4%
A vulnerability was detected in NousResearch hermes-agent up to 0.16.0. Affected by this issue is some unknown functionality of the file hermes-agent/model_tools.py of the component Memory Toolset. The manipulation results in improper access controls. The attack can be executed remotely. The exploit is now public and may be used.
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
Affected products
NousResearch · hermes-agentpublic PoCs found — 1
cve_referencegithub.com/NousResearch/hermes-agent/issues/48181unverified⚠ Public resources, to assess the exposure of systems you control or are authorized to test. Test only with authorization.
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References
https://github.com/NousResearch/hermes-agent/https://github.com/NousResearch/hermes-agent/issues/46171https://github.com/NousResearch/hermes-agent/issues/48181https://github.com/NousResearch/hermes-agent/pull/46185https://vuldb.com/cve/CVE-2026-18993https://vuldb.com/submit/862610https://vuldb.com/vuln/386377https://vuldb.com/vuln/386377/cti