{
  "affected": [
    {
      "ranges": [
        {
          "database_specific": {
            "cpe": "cpe:2.3:a:dalibo:postgresql_anonymizer:*:*:*:*:*:postgresql:*:*",
            "extracted_events": [
              {
                "introduced": "1"
              },
              {
                "fixed": "3.1.2"
              },
              {
                "introduced": "0"
              },
              {
                "last_affected": "3.1.2"
              }
            ],
            "source": [
              "AFFECTED_FIELD",
              "CPE_RANGE"
            ]
          },
          "events": [
            {
              "introduced": "c79d5b610629a197f1eb4c868168c8cba9db4868"
            },
            {
              "fixed": "5e3e4556e53a5535f47de3f7f99571023933a0c1"
            }
          ],
          "repo": "https://gitlab.com/dalibo/postgresql_anonymizer",
          "type": "GIT"
        }
      ]
    }
  ],
  "database_specific": {
    "cna_assigner": "PostgreSQL",
    "cwe_ids": [
      "CWE-328"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/13xxx/CVE-2026-13455.json"
  },
  "details": "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",
  "id": "CVE-2026-13455",
  "modified": "2026-07-08T05:38:10.865134460Z",
  "published": "2026-06-30T15:19:57.657Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/13xxx/CVE-2026-13455.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-13455"
    },
    {
      "type": "REPORT",
      "url": "https://gitlab.com/dalibo/postgresql_anonymizer/-/issues/649"
    }
  ],
  "schema_version": "1.7.5",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N",
      "type": "CVSS_V3"
    }
  ],
  "summary": "PostgreSQL Anonymizer: Unrestricted function can leak the secret salt"
}