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CVE-2026-5807

Full vulnerability record from the local CVENow database.

Description

Vault is vulnerable to a denial-of-service condition where an unauthenticated attacker can repeatedly initiate or cancel root token generation or rekey operations, occupying the single in-progress operation slot. This prevents legitimate operators from completing these workflows. This vulnerability, CVE-2026-5807, is fixed in Vault Community Edition 2.0.0 and Vault Enterprise 2.0.0.

Severity
HIGH
CVSS score
7.5 (v3.1)
Vulnerability status
Modified
Source identifier
Published
2026-04-17 05:16:19.303000
Last modified
2026-10-26 22:10:00.163000
View original CVE JSON
{
  "id": "CVE-2026-5807",
  "sourceIdentifier": "[email protected]",
  "published": "2026-04-17T05:16:19.303",
  "lastModified": "2026-10-26T22:10:00.163",
  "vulnStatus": "Modified",
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "Vault is vulnerable to a denial-of-service condition where an unauthenticated attacker can repeatedly initiate or cancel root token generation or rekey operations, occupying the single in-progress operation slot. This prevents legitimate operators from completing these workflows. This vulnerability, CVE-2026-5807, is fixed in Vault Community Edition 2.0.0 and Vault Enterprise 2.0.0."
    },
    {
      "lang": "es",
      "value": "Vault es vulnerable a una condición de denegación de servicio donde un atacante no autenticado puede iniciar o cancelar repetidamente operaciones de generación de tokens raíz o de recifrado, ocupando la única ranura de operación en curso. Esto impide que los operadores legítimos completen estos flujos de trabajo. Esta vulnerabilidad, CVE-2026-5807, está corregida en Vault Community Edition 2.0.0 y Vault Enterprise 2.0.0."
    }
  ],
  "affected": [
    {
      "source": "[email protected]",
      "affectedData": [
        {
          "vendor": "HashiCorp",
          "product": "Vault",
          "defaultStatus": "unaffected",
          "platforms": [
            "64 bit",
            "32 bit",
            "x86",
            "ARM",
            "MacOS",
            "Windows",
            "Linux"
          ],
          "repo": "https://github.com/hashicorp/vault",
          "versions": [
            {
              "version": "0",
              "lessThan": "2.0.0",
              "versionType": "semver",
              "status": "affected"
            }
          ]
        },
        {
          "vendor": "HashiCorp",
          "product": "Vault Enterprise",
          "defaultStatus": "unaffected",
          "platforms": [
            "64 bit",
            "32 bit",
            "x86",
            "ARM",
            "MacOS",
            "Windows",
            "Linux"
          ],
          "repo": "https://github.com/hashicorp/vault",
          "versions": [
            {
              "version": "0",
              "lessThan": "2.0.0.",
              "versionType": "semver",
              "status": "affected"
            }
          ]
        }
      ]
    },
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          "product": "Red Hat Openshift Data Foundation 4",
          "defaultStatus": "unaffected",
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          "packageName": "cephcsi-rhel8",
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          "packageName": "mcg-cli-rhel9",
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          "packageName": "mcg-rhel8-operator",
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          "packageName": "ocs4/cephcsi-rhel8",
          "cpes": [
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        },
        {
          "vendor": "Red Hat",
          "product": "Red Hat Openshift Data Foundation 4",
          "defaultStatus": "unaffected",
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          "packageName": "odf4/cephcsi-rhel8",
          "cpes": [
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        },
        {
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        },
        {
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          "defaultStatus": "affected",
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          "packageName": "odf4/mcg-rhel8-operator",
          "cpes": [
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        },
        {
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    }
  ],
  "metrics": {
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        "source": "[email protected]",
        "type": "Secondary",
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          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
          "baseScore": 7.5,
          "baseSeverity": "HIGH",
          "attackVector": "NETWORK",
          "attackComplexity": "LOW",
          "privilegesRequired": "NONE",
          "userInteraction": "NONE",
          "scope": "UNCHANGED",
          "confidentialityImpact": "NONE",
          "integrityImpact": "NONE",
          "availabilityImpact": "HIGH"
        },
        "exploitabilityScore": 3.9,
        "impactScore": 3.6
      },
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          "userInteraction": "NONE",
          "scope": "UNCHANGED",
          "confidentialityImpact": "NONE",
          "integrityImpact": "NONE",
          "availabilityImpact": "HIGH"
        },
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      }
    ],
    "ssvcV203": [
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            {
              "exploitation": "none"
            },
            {
              "automatable": "yes"
            },
            {
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            }
          ],
          "role": "CISA Coordinator",
          "version": "2.0.3"
        }
      }
    ]
  },
  "weaknesses": [
    {
      "source": "[email protected]",
      "type": "Secondary",
      "description": [
        {
          "lang": "en",
          "value": "CWE-770"
        }
      ]
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  ],
  "configurations": [
    {
      "nodes": [
        {
          "operator": "OR",
          "negate": false,
          "cpeMatch": [
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              "vulnerable": true,
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  "references": [
    {
      "url": "https://discuss.hashicorp.com/t/hcsec-2026-08-vault-vulnerable-to-denial-of-service-via-unauthenticated-root-token-generation-rekey-operations/77345",
      "source": "[email protected]",
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        "Vendor Advisory"
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}