Vulnerability-Lookup

CVE-2026-18976 (GCVE-0-2026-18976)

Vulnerability from cvelistv5 – Published: 2026-08-06 01:45 – Updated: 2026-08-06 01:45

Title

NousResearch hermes-agent disabled_toolsets agent_init.py get_tool_definitions privileges assignment

Summary

A vulnerability was determined in NousResearch hermes-agent up to 0.16.0. This impacts the function get_tool_definitions of the file agent/agent_init.py of the component disabled_toolsets Handler. This manipulation causes incorrect privilege assignment. The attack may be initiated remotely. The exploit has been publicly disclosed and may be utilized. The project was informed of the problem early through an issue report.

Severity

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

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

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

CWE

CWE-266 - Incorrect Privilege Assignment

Assigner

VulDB

References

7 references

URL	Tags
https://vuldb.com/vuln/386264	vdb-entrytechnical-description
https://vuldb.com/vuln/386264/cti	signaturepermissions-required
https://vuldb.com/cve/CVE-2026-18976	third-party-advisory
https://vuldb.com/submit/862541	third-party-advisory
https://github.com/NousResearch/hermes-agent/issu…	exploitissue-tracking
https://github.com/NousResearch/hermes-agent/pull/46185	issue-trackingpatch
https://github.com/NousResearch/hermes-agent/	product

Impacted products

1 product

Vendor	Product	Version
NousResearch	hermes-agent	Affected: 0.1 Affected: 0.2 Affected: 0.3 Affected: 0.4 Affected: 0.5 Affected: 0.6 Affected: 0.7 Affected: 0.8 Affected: 0.9 Affected: 0.10 Affected: 0.11 Affected: 0.12 Affected: 0.13 Affected: 0.14 Affected: 0.15 Affected: 0.16.0 cpe:2.3:a:nousresearch:hermes-agent::::::::

Credits

Erichen-apple (VulDB User) VulDB CNA Team

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "cna": {
      "affected": [
        {
          "cpes": [
            "cpe:2.3:a:nousresearch:hermes-agent:*:*:*:*:*:*:*:*"
          ],
          "modules": [
            "disabled_toolsets Handler"
          ],
          "product": "hermes-agent",
          "vendor": "NousResearch",
          "versions": [
            {
              "status": "affected",
              "version": "0.1"
            },
            {
              "status": "affected",
              "version": "0.2"
            },
            {
              "status": "affected",
              "version": "0.3"
            },
            {
              "status": "affected",
              "version": "0.4"
            },
            {
              "status": "affected",
              "version": "0.5"
            },
            {
              "status": "affected",
              "version": "0.6"
            },
            {
              "status": "affected",
              "version": "0.7"
            },
            {
              "status": "affected",
              "version": "0.8"
            },
            {
              "status": "affected",
              "version": "0.9"
            },
            {
              "status": "affected",
              "version": "0.10"
            },
            {
              "status": "affected",
              "version": "0.11"
            },
            {
              "status": "affected",
              "version": "0.12"
            },
            {
              "status": "affected",
              "version": "0.13"
            },
            {
              "status": "affected",
              "version": "0.14"
            },
            {
              "status": "affected",
              "version": "0.15"
            },
            {
              "status": "affected",
              "version": "0.16.0"
            }
          ]
        }
      ],
      "credits": [
        {
          "lang": "en",
          "type": "reporter",
          "value": "Erichen-apple (VulDB User)"
        },
        {
          "lang": "en",
          "type": "coordinator",
          "value": "VulDB CNA Team"
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "A vulnerability was determined in NousResearch hermes-agent up to 0.16.0. This impacts the function get_tool_definitions of the file agent/agent_init.py of the component disabled_toolsets Handler. This manipulation causes incorrect privilege assignment. The attack may be initiated remotely. The exploit has been publicly disclosed and may be utilized. The project was informed of the problem early through an issue report."
        }
      ],
      "metrics": [
        {
          "cvssV4_0": {
            "baseScore": 5.3,
            "baseSeverity": "MEDIUM",
            "vectorString": "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",
            "version": "4.0"
          }
        },
        {
          "cvssV3_1": {
            "baseScore": 6.3,
            "baseSeverity": "MEDIUM",
            "vectorString": "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",
            "version": "3.1"
          }
        },
        {
          "cvssV3_0": {
            "baseScore": 6.3,
            "baseSeverity": "MEDIUM",
            "vectorString": "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",
            "version": "3.0"
          }
        },
        {
          "cvssV2_0": {
            "baseScore": 6.5,
            "vectorString": "AV:N/AC:L/Au:S/C:P/I:P/A:P/E:POC/RL:ND/RC:C",
            "version": "2.0"
          }
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-266",
              "description": "Incorrect Privilege Assignment",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-08-06T01:45:12.863Z",
        "orgId": "1af790b2-7ee1-4545-860a-a788eba489b5",
        "shortName": "VulDB"
      },
      "references": [
        {
          "name": "VDB-386264 | NousResearch hermes-agent disabled_toolsets agent_init.py get_tool_definitions privileges assignment",
          "tags": [
            "vdb-entry",
            "technical-description"
          ],
          "url": "https://vuldb.com/vuln/386264"
        },
        {
          "name": "VDB-386264 | CTI Indicators (IOB, IOC, TTP, IOA)",
          "tags": [
            "signature",
            "permissions-required"
          ],
          "url": "https://vuldb.com/vuln/386264/cti"
        },
        {
          "name": "CVE-2026-18976 | CVE Analysis and Report",
          "tags": [
            "third-party-advisory"
          ],
          "url": "https://vuldb.com/cve/CVE-2026-18976"
        },
        {
          "name": "Submit #862541 | NousResearch Hermes Agent 0.16.0 Incorrect Privilege Assignment (CWE-266)",
          "tags": [
            "third-party-advisory"
          ],
          "url": "https://vuldb.com/submit/862541"
        },
        {
          "tags": [
            "exploit",
            "issue-tracking"
          ],
          "url": "https://github.com/NousResearch/hermes-agent/issues/46171"
        },
        {
          "tags": [
            "issue-tracking",
            "patch"
          ],
          "url": "https://github.com/NousResearch/hermes-agent/pull/46185"
        },
        {
          "tags": [
            "product"
          ],
          "url": "https://github.com/NousResearch/hermes-agent/"
        }
      ],
      "timeline": [
        {
          "lang": "en",
          "time": "2026-08-05T00:00:00.000Z",
          "value": "Advisory disclosed"
        },
        {
          "lang": "en",
          "time": "2026-08-05T02:00:00.000Z",
          "value": "VulDB entry created"
        },
        {
          "lang": "en",
          "time": "2026-08-05T18:22:48.000Z",
          "value": "VulDB entry last update"
        }
      ],
      "title": "NousResearch hermes-agent disabled_toolsets agent_init.py get_tool_definitions privileges assignment",
      "x_generator": [
        "VulDB PVTS v202608"
      ]
    }
  },
  "cveMetadata": {
    "assignerOrgId": "1af790b2-7ee1-4545-860a-a788eba489b5",
    "assignerShortName": "VulDB",
    "cveId": "CVE-2026-18976",
    "datePublished": "2026-08-06T01:45:12.863Z",
    "dateReserved": "2026-08-05T16:17:43.809Z",
    "dateUpdated": "2026-08-06T01:45:12.863Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2",
  "vulnerability-lookup:meta": {
    "nvd": "{\"cve\":{\"id\":\"CVE-2026-18976\",\"sourceIdentifier\":\"cna@vuldb.com\",\"published\":\"2026-08-06T02:16:41.430\",\"lastModified\":\"2026-08-06T02:16:41.430\",\"vulnStatus\":\"Received\",\"cveTags\":[],\"descriptions\":[{\"lang\":\"en\",\"value\":\"A vulnerability was determined in NousResearch hermes-agent up to 0.16.0. This impacts the function get_tool_definitions of the file agent/agent_init.py of the component disabled_toolsets Handler. This manipulation causes incorrect privilege assignment. The attack may be initiated remotely. The exploit has been publicly disclosed and may be utilized. The project was informed of the problem early through an issue report.\"}],\"affected\":[{\"source\":\"cna@vuldb.com\",\"affectedData\":[{\"vendor\":\"NousResearch\",\"product\":\"hermes-agent\",\"cpes\":[\"cpe:2.3:a:nousresearch:hermes-agent:*:*:*:*:*:*:*:*\"],\"modules\":[\"disabled_toolsets Handler\"],\"versions\":[{\"version\":\"0.1\",\"status\":\"affected\"},{\"version\":\"0.2\",\"status\":\"affected\"},{\"version\":\"0.3\",\"status\":\"affected\"},{\"version\":\"0.4\",\"status\":\"affected\"},{\"version\":\"0.5\",\"status\":\"affected\"},{\"version\":\"0.6\",\"status\":\"affected\"},{\"version\":\"0.7\",\"status\":\"affected\"},{\"version\":\"0.8\",\"status\":\"affected\"},{\"version\":\"0.9\",\"status\":\"affected\"},{\"version\":\"0.10\",\"status\":\"affected\"},{\"version\":\"0.11\",\"status\":\"affected\"},{\"version\":\"0.12\",\"status\":\"affected\"},{\"version\":\"0.13\",\"status\":\"affected\"},{\"version\":\"0.14\",\"status\":\"affected\"},{\"version\":\"0.15\",\"status\":\"affected\"},{\"version\":\"0.16.0\",\"status\":\"affected\"}]}]}],\"metrics\":{\"cvssMetricV40\":[{\"source\":\"cna@vuldb.com\",\"type\":\"Secondary\",\"cvssData\":{\"version\":\"4.0\",\"vectorString\":\"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\",\"baseScore\":2.1,\"baseSeverity\":\"LOW\",\"attackVector\":\"NETWORK\",\"attackComplexity\":\"LOW\",\"attackRequirements\":\"NONE\",\"privilegesRequired\":\"LOW\",\"userInteraction\":\"NONE\",\"vulnConfidentialityImpact\":\"LOW\",\"vulnIntegrityImpact\":\"LOW\",\"vulnAvailabilityImpact\":\"LOW\",\"subConfidentialityImpact\":\"NONE\",\"subIntegrityImpact\":\"NONE\",\"subAvailabilityImpact\":\"NONE\",\"exploitMaturity\":\"PROOF_OF_CONCEPT\",\"confidentialityRequirement\":\"NOT_DEFINED\",\"integrityRequirement\":\"NOT_DEFINED\",\"availabilityRequirement\":\"NOT_DEFINED\",\"modifiedAttackVector\":\"NOT_DEFINED\",\"modifiedAttackComplexity\":\"NOT_DEFINED\",\"modifiedAttackRequirements\":\"NOT_DEFINED\",\"modifiedPrivilegesRequired\":\"NOT_DEFINED\",\"modifiedUserInteraction\":\"NOT_DEFINED\",\"modifiedVulnConfidentialityImpact\":\"NOT_DEFINED\",\"modifiedVulnIntegrityImpact\":\"NOT_DEFINED\",\"modifiedVulnAvailabilityImpact\":\"NOT_DEFINED\",\"modifiedSubConfidentialityImpact\":\"NOT_DEFINED\",\"modifiedSubIntegrityImpact\":\"NOT_DEFINED\",\"modifiedSubAvailabilityImpact\":\"NOT_DEFINED\",\"Safety\":\"NOT_DEFINED\",\"Automatable\":\"NOT_DEFINED\",\"Recovery\":\"NOT_DEFINED\",\"valueDensity\":\"NOT_DEFINED\",\"vulnerabilityResponseEffort\":\"NOT_DEFINED\",\"providerUrgency\":\"NOT_DEFINED\"}}],\"cvssMetricV31\":[{\"source\":\"cna@vuldb.com\",\"type\":\"Primary\",\"cvssData\":{\"version\":\"3.1\",\"vectorString\":\"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L\",\"baseScore\":6.3,\"baseSeverity\":\"MEDIUM\",\"attackVector\":\"NETWORK\",\"attackComplexity\":\"LOW\",\"privilegesRequired\":\"LOW\",\"userInteraction\":\"NONE\",\"scope\":\"UNCHANGED\",\"confidentialityImpact\":\"LOW\",\"integrityImpact\":\"LOW\",\"availabilityImpact\":\"LOW\"},\"exploitabilityScore\":2.8,\"impactScore\":3.4}],\"cvssMetricV2\":[{\"source\":\"cna@vuldb.com\",\"type\":\"Secondary\",\"cvssData\":{\"version\":\"2.0\",\"vectorString\":\"AV:N/AC:L/Au:S/C:P/I:P/A:P\",\"baseScore\":6.5,\"accessVector\":\"NETWORK\",\"accessComplexity\":\"LOW\",\"authentication\":\"SINGLE\",\"confidentialityImpact\":\"PARTIAL\",\"integrityImpact\":\"PARTIAL\",\"availabilityImpact\":\"PARTIAL\"},\"baseSeverity\":\"MEDIUM\",\"exploitabilityScore\":8.0,\"impactScore\":6.4,\"acInsufInfo\":false,\"obtainAllPrivilege\":false,\"obtainUserPrivilege\":false,\"obtainOtherPrivilege\":false,\"userInteractionRequired\":false}]},\"weaknesses\":[{\"source\":\"cna@vuldb.com\",\"type\":\"Primary\",\"description\":[{\"lang\":\"en\",\"value\":\"CWE-266\"}]}],\"references\":[{\"url\":\"https://github.com/NousResearch/hermes-agent/\",\"source\":\"cna@vuldb.com\"},{\"url\":\"https://github.com/NousResearch/hermes-agent/issues/46171\",\"source\":\"cna@vuldb.com\"},{\"url\":\"https://github.com/NousResearch/hermes-agent/pull/46185\",\"source\":\"cna@vuldb.com\"},{\"url\":\"https://vuldb.com/cve/CVE-2026-18976\",\"source\":\"cna@vuldb.com\"},{\"url\":\"https://vuldb.com/submit/862541\",\"source\":\"cna@vuldb.com\"},{\"url\":\"https://vuldb.com/vuln/386264\",\"source\":\"cna@vuldb.com\"},{\"url\":\"https://vuldb.com/vuln/386264/cti\",\"source\":\"cna@vuldb.com\"}]}}"
  }
}

GHSA-6RR9-MPP7-J4MP

Vulnerability from github – Published: 2026-08-06 03:31 – Updated: 2026-08-06 03:31

Details

Severity

6.3 (Medium)


                  
                    CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L

2.1 (Low)


                  
                    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

Show details on source website

JSON

To clipboard

{
  "affected": [],
  "aliases": [
    "CVE-2026-18976"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-266"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-08-06T02:16:41Z",
    "severity": "LOW"
  },
  "details": "A vulnerability was determined in NousResearch hermes-agent up to 0.16.0. This impacts the function get_tool_definitions of the file agent/agent_init.py of the component disabled_toolsets Handler. This manipulation causes incorrect privilege assignment. The attack may be initiated remotely. The exploit has been publicly disclosed and may be utilized. The project was informed of the problem early through an issue report.",
  "id": "GHSA-6rr9-mpp7-j4mp",
  "modified": "2026-08-06T03:31:13Z",
  "published": "2026-08-06T03:31:13Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-18976"
    },
    {
      "type": "WEB",
      "url": "https://github.com/NousResearch/hermes-agent/issues/46171"
    },
    {
      "type": "WEB",
      "url": "https://github.com/NousResearch/hermes-agent/pull/46185"
    },
    {
      "type": "WEB",
      "url": "https://github.com/NousResearch/hermes-agent"
    },
    {
      "type": "WEB",
      "url": "https://vuldb.com/cve/CVE-2026-18976"
    },
    {
      "type": "WEB",
      "url": "https://vuldb.com/submit/862541"
    },
    {
      "type": "WEB",
      "url": "https://vuldb.com/vuln/386264"
    },
    {
      "type": "WEB",
      "url": "https://vuldb.com/vuln/386264/cti"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L",
      "type": "CVSS_V3"
    },
    {
      "score": "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",
      "type": "CVSS_V4"
    }
  ]
}

Sightings

Author	Source	Type	Date	Other

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

Detection rules are retrieved from Rulezet.

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.

Action not permitted

CVE-2026-18976 (GCVE-0-2026-18976)

GHSA-6RR9-MPP7-J4MP

Tags

Sightings

Nomenclature