CVE-2026-14626 (GCVE-0-2026-14626)

Vulnerability from cvelistv5 – Published: 2026-07-04 12:00 – Updated: 2026-07-07 02:29
VLAI
Title
NousResearch hermes-agent HTTP API run_agent.py AIAgent.run_conversation denial of service
Summary
A weakness has been identified in NousResearch hermes-agent up to 2026.4.30. The impacted element is the function AIAgent.run_conversation of the file run_agent.py of the component HTTP API. This manipulation of the argument todos causes denial of service. The attack can be initiated remotely. The exploit has been made available to the public and could be used for attacks. The vendor was contacted early about this disclosure but did not respond in any way.
SSVC
Exploitation: poc Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-07-07 02:29 UTC
CWE
Assigner
VulDB CNA under the mitre root
CNA scorecard B 82/100 over 3918 records in the last 180 days details
References
URL Tags
https://vuldb.com/vuln/376142 vdb-entrytechnical-description
https://vuldb.com/vuln/376142/cti signaturepermissions-required
https://vuldb.com/cve/CVE-2026-14626 third-party-advisory
https://vuldb.com/submit/845596 third-party-advisory
https://gist.github.com/YLChen-007/b91a85f9448bea… exploit
Impacted products
Vendor Product Version CPE status
NousResearch hermes-agent Affected: 2026.4.0
Affected: 2026.4.1
Affected: 2026.4.2
Affected: 2026.4.3
Affected: 2026.4.4
Affected: 2026.4.5
Affected: 2026.4.6
Affected: 2026.4.7
Affected: 2026.4.8
Affected: 2026.4.9
Affected: 2026.4.10
Affected: 2026.4.11
Affected: 2026.4.12
Affected: 2026.4.13
Affected: 2026.4.14
Affected: 2026.4.15
Affected: 2026.4.16
Affected: 2026.4.17
Affected: 2026.4.18
Affected: 2026.4.19
Affected: 2026.4.20
Affected: 2026.4.21
Affected: 2026.4.22
Affected: 2026.4.23
Affected: 2026.4.24
Affected: 2026.4.25
Affected: 2026.4.26
Affected: 2026.4.27
Affected: 2026.4.28
Affected: 2026.4.29
Affected: 2026.4.30
    cpe:2.3:a:nousresearch:hermes-agent:*:*:*:*:*:*:*:*
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Show details on NVD website

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                  "status": "affected",
                  "version": "2026.4.17"
                },
                {
                  "status": "affected",
                  "version": "2026.4.18"
                },
                {
                  "status": "affected",
                  "version": "2026.4.19"
                },
                {
                  "status": "affected",
                  "version": "2026.4.20"
                },
                {
                  "status": "affected",
                  "version": "2026.4.21"
                },
                {
                  "status": "affected",
                  "version": "2026.4.22"
                },
                {
                  "status": "affected",
                  "version": "2026.4.23"
                },
                {
                  "status": "affected",
                  "version": "2026.4.24"
                },
                {
                  "status": "affected",
                  "version": "2026.4.25"
                },
                {
                  "status": "affected",
                  "version": "2026.4.26"
                },
                {
                  "status": "affected",
                  "version": "2026.4.27"
                },
                {
                  "status": "affected",
                  "version": "2026.4.28"
                },
                {
                  "status": "affected",
                  "version": "2026.4.29"
                },
                {
                  "status": "affected",
                  "version": "2026.4.30"
                }
              ]
            }
          ],
          "credits": [
            {
              "lang": "en",
              "type": "reporter",
              "value": "Eric-a (VulDB User)"
            },
            {
              "lang": "en",
              "type": "coordinator",
              "value": "VulDB CNA Team"
            }
          ],
          "descriptions": [
            {
              "lang": "en",
              "value": "A weakness has been identified in NousResearch hermes-agent up to 2026.4.30. The impacted element is the function AIAgent.run_conversation of the file run_agent.py of the component HTTP API. This manipulation of the argument todos causes denial of service. The attack can be initiated remotely. The exploit has been made available to the public and could be used for attacks. The vendor was contacted early about this disclosure but did not respond in any way."
            }
          ],
          "metrics": [
            {
              "cvssV4_0": {
                "baseScore": 5.3,
                "baseSeverity": "MEDIUM",
                "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:P",
                "version": "4.0"
              }
            },
            {
              "cvssV3_1": {
                "baseScore": 4.3,
                "baseSeverity": "MEDIUM",
                "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L/E:P/RL:X/RC:R",
                "version": "3.1"
              }
            },
            {
              "cvssV3_0": {
                "baseScore": 4.3,
                "baseSeverity": "MEDIUM",
                "vectorString": "CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L/E:P/RL:X/RC:R",
                "version": "3.0"
              }
            },
            {
              "cvssV2_0": {
                "baseScore": 4,
                "vectorString": "AV:N/AC:L/Au:S/C:N/I:N/A:P/E:POC/RL:ND/RC:UR",
                "version": "2.0"
              }
            }
          ],
          "problemTypes": [
            {
              "descriptions": [
                {
                  "cweId": "CWE-404",
                  "description": "Denial of Service",
                  "lang": "en",
                  "type": "CWE"
                }
              ]
            }
          ],
          "providerMetadata": {
            "dateUpdated": "2026-07-04T12:00:07.960Z",
            "orgId": "1af790b2-7ee1-4545-860a-a788eba489b5",
            "shortName": "VulDB"
          },
          "references": [
            {
              "name": "VDB-376142 | NousResearch hermes-agent HTTP API run_agent.py AIAgent.run_conversation denial of service",
              "tags": [
                "vdb-entry",
                "technical-description"
              ],
              "url": "https://vuldb.com/vuln/376142"
            },
            {
              "name": "VDB-376142 | CTI Indicators (IOB, IOC, TTP, IOA)",
              "tags": [
                "signature",
                "permissions-required"
              ],
              "url": "https://vuldb.com/vuln/376142/cti"
            },
            {
              "name": "CVE-2026-14626 | CVE Analysis and Report",
              "tags": [
                "third-party-advisory"
              ],
              "url": "https://vuldb.com/cve/CVE-2026-14626"
            },
            {
              "name": "Submit #845596 | NousResearch Hermes Agent \u003c= v2026.4.30 Insufficient Verification of Data Authenticity (CWE-345)",
              "tags": [
                "third-party-advisory"
              ],
              "url": "https://vuldb.com/submit/845596"
            },
            {
              "tags": [
                "exploit"
              ],
              "url": "https://gist.github.com/YLChen-007/b91a85f9448beadebe25d37a3f4fd760"
            }
          ],
          "timeline": [
            {
              "lang": "en",
              "time": "2026-07-03T00:00:00.000Z",
              "value": "Advisory disclosed"
            },
            {
              "lang": "en",
              "time": "2026-07-03T02:00:00.000Z",
              "value": "VulDB entry created"
            },
            {
              "lang": "en",
              "time": "2026-07-03T19:13:02.000Z",
              "value": "VulDB entry last update"
            }
          ],
          "title": "NousResearch hermes-agent HTTP API run_agent.py AIAgent.run_conversation denial of service"
        }
      },
      "cveMetadata": {
        "assignerOrgId": "1af790b2-7ee1-4545-860a-a788eba489b5",
        "assignerShortName": "VulDB",
        "cveId": "CVE-2026-14626",
        "datePublished": "2026-07-04T12:00:07.960Z",
        "dateReserved": "2026-07-03T17:07:48.069Z",
        "dateUpdated": "2026-07-07T02:29:27.952Z",
        "state": "PUBLISHED"
      },
      "dataType": "CVE_RECORD",
      "dataVersion": "5.2"
    }
  }
}



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