{"id":"CVE-2026-18993","aliases":["EUVD-2026-53706","GHSA-4992-66px-gwh3"],"status":"published","title":"NousResearch hermes-agent Memory Toolset model_tools.py access control","description":"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.","severity":{"version":"4.0","score":5.3,"vector":"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","level":"medium","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-09","score":0.00374,"percentile":0.31654,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-266","CWE-284"],"published":"2026-08-06T03:45:10Z","modified":"2026-10-23T21:10:00Z","products":[{"vendor":"nousresearch","product":"hermes-agent"}],"references":[{"url":"https://vuldb.com/vuln/386377","tags":["vdb-entry"]},{"url":"https://vuldb.com/vuln/386377/cti","tags":["signature","permissions-required"]},{"url":"https://vuldb.com/cve/CVE-2026-18993","tags":["third-party-advisory"]},{"url":"https://vuldb.com/submit/862610","tags":["third-party-advisory"]},{"url":"https://github.com/NousResearch/hermes-agent/issues/46171","tags":["issue-tracking"]},{"url":"https://github.com/NousResearch/hermes-agent/pull/46185","tags":["issue-tracking","patch"]},{"url":"https://github.com/NousResearch/hermes-agent/issues/48181","tags":["exploit","issue-tracking"]},{"url":"https://github.com/NousResearch/hermes-agent/","tags":["product"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-18993"},{"url":"https://github.com/NousResearch/hermes-agent"},{"url":"https://github.com/advisories/GHSA-4992-66px-gwh3"}],"sources":{"cve":[{"id":"CVE-2026-18993","title":"NousResearch hermes-agent Memory Toolset model_tools.py access control","description":"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.","status":"published","published":"2026-08-06T03:45:10.418Z","modified":"2026-08-06T13:27:35.682Z","cvss":[{"version":"4.0","score":5.3,"vector":"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","level":"medium","assessor":"cna"},{"version":"3.1","score":6.3,"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","level":"medium","assessor":"cna"},{"version":"3.0","score":6.3,"vector":"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","level":"medium","assessor":"cna"},{"version":"2.0","score":6.5,"vector":"AV:N/AC:L/Au:S/C:P/I:P/A:P/E:POC/RL:ND/RC:C","assessor":"cna"}],"cwes":["CWE-284","CWE-266"],"updated_at":"2026-11-02T14:20:12.60856Z"}],"euvd":[{"id":"EUVD-2026-53706","description":"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.","status":"published","published":"2026-08-06T03:45:10Z","modified":"2026-08-06T13:27:35Z","cvss":[{"version":"4.0","score":5.3,"vector":"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","level":"medium"}],"updated_at":"2026-11-02T18:02:09.043832Z"}],"ghsa":[{"id":"GHSA-4992-66px-gwh3","title":"A vulnerability was detected in NousResearch hermes-agent up to 0.16.0. Affected by this issue is...","description":"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.","status":"published","published":"2026-08-06T06:30:32Z","modified":"2026-08-06T06:31:40Z","cvss":[{"version":"4.0","score":2.1,"vector":"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/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X","level":"low"},{"version":"3.1","score":6.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L","level":"medium"}],"cwes":["CWE-266"],"updated_at":"2026-11-02T15:10:08.59251Z"}],"nvd":[{"id":"CVE-2026-18993","description":"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.","status":"published","published":"2026-08-06T05:16:41.38Z","modified":"2026-10-23T21:10:00.157Z","cvss":[{"version":"4.0","score":2.1,"vector":"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/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X","level":"low","assessor":"secondary"},{"version":"3.1","score":6.3,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L","level":"medium","assessor":"secondary"},{"version":"2.0","score":6.5,"vector":"AV:N/AC:L/Au:S/C:P/I:P/A:P","level":"medium","assessor":"secondary"}],"cwes":["CWE-266","CWE-284"],"updated_at":"2026-11-02T14:12:35.031043Z"}]}}