fkie_cve-2025-6203
Vulnerability from fkie_nvd
Published
2025-08-28 20:15
Modified
2025-12-18 17:55
Severity ?
7.5 (High) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Summary
A malicious user may submit a specially-crafted complex payload that otherwise meets the default request size limit which results in excessive memory and CPU consumption of Vault. This may lead to a timeout in Vault’s auditing subroutine, potentially resulting in the Vault server to become unresponsive. This vulnerability, CVE-2025-6203, is fixed in Vault Community Edition 1.20.3 and Vault Enterprise 1.20.3, 1.19.9, 1.18.14, and 1.16.25.
References
security@hashicorp.comhttps://discuss.hashicorp.com/t/hcsec-2025-24-vault-denial-of-service-though-complex-json-payloads/76393Vendor Advisory
Impacted products
Vendor Product Version
hashicorp vault *
hashicorp vault *
hashicorp vault *
hashicorp vault *
hashicorp vault *


To clipboard 

{
  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:hashicorp:vault:*:*:*:*:enterprise:*:*:*",
              "matchCriteriaId": "C75B707B-CECA-4F3F-B7A5-3A63627E23E0",
              "versionEndExcluding": "1.16.27",
              "versionStartIncluding": "1.15.0",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:a:hashicorp:vault:*:*:*:*:-:*:*:*",
              "matchCriteriaId": "FFB5EFCB-595D-405C-AEE5-D3A674079A42",
              "versionEndExcluding": "1.21.0",
              "versionStartIncluding": "1.15.0",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:a:hashicorp:vault:*:*:*:*:enterprise:*:*:*",
              "matchCriteriaId": "BB39834B-EF79-4C8B-B344-D81B15652821",
              "versionEndExcluding": "1.18.15",
              "versionStartIncluding": "1.18.0",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:a:hashicorp:vault:*:*:*:*:enterprise:*:*:*",
              "matchCriteriaId": "167CFBBB-E0DF-42AB-84AA-4BF19C3873DB",
              "versionEndExcluding": "1.19.11",
              "versionStartIncluding": "1.19.0",
              "vulnerable": true
            },
            {
              "criteria": "cpe:2.3:a:hashicorp:vault:*:*:*:*:enterprise:*:*:*",
              "matchCriteriaId": "466A7DC1-B9A3-4413-AA3E-AFAF34350E52",
              "versionEndExcluding": "1.20.5",
              "versionStartIncluding": "1.20.0",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ]
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "A malicious user may submit a specially-crafted complex payload that otherwise meets the default request size limit which results in excessive memory and CPU consumption of Vault. This may lead to a timeout in Vault\u2019s auditing subroutine, potentially resulting in the Vault server to become unresponsive. This vulnerability, CVE-2025-6203, is fixed in Vault Community Edition 1.20.3 and Vault Enterprise 1.20.3, 1.19.9, 1.18.14, and 1.16.25."
    }
  ],
  "id": "CVE-2025-6203",
  "lastModified": "2025-12-18T17:55:00.780",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "HIGH",
          "baseScore": 7.5,
          "baseSeverity": "HIGH",
          "confidentialityImpact": "NONE",
          "integrityImpact": "NONE",
          "privilegesRequired": "NONE",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
          "version": "3.1"
        },
        "exploitabilityScore": 3.9,
        "impactScore": 3.6,
        "source": "security@hashicorp.com",
        "type": "Secondary"
      }
    ]
  },
  "published": "2025-08-28T20:15:43.817",
  "references": [
    {
      "source": "security@hashicorp.com",
      "tags": [
        "Vendor Advisory"
      ],
      "url": "https://discuss.hashicorp.com/t/hcsec-2025-24-vault-denial-of-service-though-complex-json-payloads/76393"
    }
  ],
  "sourceIdentifier": "security@hashicorp.com",
  "vulnStatus": "Analyzed",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-770"
        }
      ],
      "source": "security@hashicorp.com",
      "type": "Secondary"
    }
  ]
}


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