FKIE_CVE-2026-27314

Vulnerability from fkie_nvd - Published: 2026-04-07 17:16 - Updated: 2026-04-15 15:48
Severity ?
8.8 (High) - CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Summary
Privilege escalation in Apache Cassandra 5.0 on an mTLS environment using MutualTlsAuthenticator allows a user with only CREATE permission to associate their own certificate identity with an arbitrary role, including a superuser role, and authenticate as that role via ADD IDENTITY. Users are recommended to upgrade to version 5.0.7+, which fixes this issue.
References
security@apache.orghttps://lists.apache.org/thread/zrng82ddy4rpsmfyk582v6hqxcqrbz7fMailing List, Vendor Advisory
af854a3a-2127-422b-91ae-364da2661108http://www.openwall.com/lists/oss-security/2026/04/07/7Mailing List, Third Party Advisory
Impacted products
Vendor Product Version
apache cassandra *
To clipboard 

{
  "configurations": [
    {
      "nodes": [
        {
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:apache:cassandra:*:*:*:*:*:*:*:*",
              "matchCriteriaId": "31249BDD-7A3E-4B31-A274-4C7237920C6C",
              "versionEndExcluding": "5.0.7",
              "versionStartIncluding": "5.0.0",
              "vulnerable": true
            }
          ],
          "negate": false,
          "operator": "OR"
        }
      ]
    }
  ],
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "Privilege escalation\u00a0in Apache Cassandra 5.0 on an mTLS environment using MutualTlsAuthenticator\u00a0allows a user with only CREATE permission\u00a0to associate their own certificate identity with an arbitrary role,\nincluding a superuser role, and authenticate as that role\u00a0via ADD IDENTITY.\n\nUsers are recommended to upgrade to version 5.0.7+, which fixes this issue."
    }
  ],
  "id": "CVE-2026-27314",
  "lastModified": "2026-04-15T15:48:53.273",
  "metrics": {
    "cvssMetricV31": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "HIGH",
          "baseScore": 8.8,
          "baseSeverity": "HIGH",
          "confidentialityImpact": "HIGH",
          "integrityImpact": "HIGH",
          "privilegesRequired": "LOW",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
          "version": "3.1"
        },
        "exploitabilityScore": 2.8,
        "impactScore": 5.9,
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "type": "Secondary"
      }
    ]
  },
  "published": "2026-04-07T17:16:27.693",
  "references": [
    {
      "source": "security@apache.org",
      "tags": [
        "Mailing List",
        "Vendor Advisory"
      ],
      "url": "https://lists.apache.org/thread/zrng82ddy4rpsmfyk582v6hqxcqrbz7f"
    },
    {
      "source": "af854a3a-2127-422b-91ae-364da2661108",
      "tags": [
        "Mailing List",
        "Third Party Advisory"
      ],
      "url": "http://www.openwall.com/lists/oss-security/2026/04/07/7"
    }
  ],
  "sourceIdentifier": "security@apache.org",
  "vulnStatus": "Analyzed",
  "weaknesses": [
    {
      "description": [
        {
          "lang": "en",
          "value": "CWE-267"
        }
      ],
      "source": "security@apache.org",
      "type": "Secondary"
    }
  ]
}


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