CVE-2026-13455

{
  "id": "CVE-2026-13455",
  "sourceIdentifier": "f86ef6dc-4d3a-42ad-8f28-e6d5547a5007",
  "published": "2026-06-30T16:16:44.547",
  "lastModified": "2026-10-25T21:10:00.770",
  "vulnStatus": "Analyzed",
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "PostgreSQL Anonymizer contains a vulnerability that allows unprivileged masked users to repeatedly call the anon.hash() function and collects (seed, hash_output) pairs to perform an offline brute-force attack and deduce the salt. The problem is resolved in PostgreSQL Anonymizer 3.1.2 and later versions"
    },
    {
      "lang": "es",
      "value": "PostgreSQL Anonymizer contiene una vulnerabilidad que permite a usuarios enmascarados sin privilegios llamar repetidamente a la función anon.hash() y recopilar pares (semilla, salida_hash) para realizar un ataque de fuerza bruta fuera de línea y deducir la sal. El problema se resuelve en PostgreSQL Anonymizer 3.1.2 y versiones posteriores."
    }
  ],
  "affected": [
    {
      "source": "f86ef6dc-4d3a-42ad-8f28-e6d5547a5007",
      "affectedData": [
        {
          "vendor": "DALIBO",
          "product": "PostgreSQL Anonymizer",
          "defaultStatus": "unaffected",
          "versions": [
            {
              "version": "1",
              "lessThan": "3.1.2",
              "versionType": "semver",
              "status": "affected"
            }
          ]
        }
      ]
    }
  ],
  "metrics": {
    "cvssMetricV31": [
      {
        "source": "f86ef6dc-4d3a-42ad-8f28-e6d5547a5007",
        "type": "Secondary",
        "cvssData": {
          "version": "3.1",
          "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N",
          "baseScore": 4.3,
          "baseSeverity": "MEDIUM",
          "attackVector": "NETWORK",
          "attackComplexity": "LOW",
          "privilegesRequired": "LOW",
          "userInteraction": "NONE",
          "scope": "UNCHANGED",
          "confidentialityImpact": "LOW",
          "integrityImpact": "NONE",
          "availabilityImpact": "NONE"
        },
        "exploitabilityScore": 2.8,
        "impactScore": 1.4
      }
    ],
    "ssvcV203": [
      {
        "source": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
        "ssvcData": {
          "timestamp": "2026-06-30T15:57:10.838763Z",
          "id": "CVE-2026-13455",
          "options": [
            {
              "exploitation": "none"
            },
            {
              "automatable": "no"
            },
            {
              "technicalImpact": "partial"
            }
          ],
          "role": "CISA Coordinator",
          "version": "2.0.3"
        }
      }
    ]
  },
  "weaknesses": [
    {
      "source": "f86ef6dc-4d3a-42ad-8f28-e6d5547a5007",
      "type": "Secondary",
      "description": [
        {
          "lang": "en",
          "value": "CWE-328"
        }
      ]
    }
  ],
  "configurations": [
    {
      "nodes": [
        {
          "operator": "OR",
          "negate": false,
          "cpeMatch": [
            {
              "vulnerable": true,
              "criteria": "cpe:2.3:a:dalibo:postgresql_anonymizer:*:*:*:*:*:postgresql:*:*",
              "versionEndIncluding": "3.1.2",
              "matchCriteriaId": "2CBA3A66-8F34-4EA5-9C5F-FEDDE5689BD0"
            }
          ]
        }
      ]
    }
  ],
  "references": [
    {
      "url": "https://gitlab.com/dalibo/postgresql_anonymizer/-/issues/649",
      "source": "f86ef6dc-4d3a-42ad-8f28-e6d5547a5007",
      "tags": [
        "Vendor Advisory"
      ]
    }
  ]
}