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CVE-2026-15742 PostgreSQL fuzzystrmatch writes effectively-arbitrary addresses, via integer wraparound

🗓️ 13 Aug 2026 13:00:11Reported by PostgreSQLType 
cvelist
 cvelist
🔗 www.cve.org👁 50 Views

Integer wraparound in PostgreSQL fuzzystrmatch allows arbitrary address writes and code execution via levenshtein() functions.

Related
Affected
Refs
[
  {
    "defaultStatus": "unaffected",
    "product": "PostgreSQL",
    "vendor": "n/a",
    "versions": [
      {
        "lessThan": "18.6",
        "status": "affected",
        "version": "18",
        "versionType": "rpm"
      },
      {
        "lessThan": "17.11",
        "status": "affected",
        "version": "17",
        "versionType": "rpm"
      },
      {
        "lessThan": "16.15",
        "status": "affected",
        "version": "16",
        "versionType": "rpm"
      },
      {
        "lessThan": "15.19",
        "status": "affected",
        "version": "15",
        "versionType": "rpm"
      },
      {
        "lessThan": "14.24",
        "status": "affected",
        "version": "0",
        "versionType": "rpm"
      }
    ]
  }
]

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