{
  "cveId": "CVE-2026-6665",
  "url": "https://patchblox.com/security/cve/CVE-2026-6665",
  "summary": "CVE-2026-6665 is fixed in pgbouncer on 1 platform, first by DEBIAN-CVE-2026-6665, released May 27, 2026. It is not reported as exploited. Patch Radar priority: High.",
  "title": "PgBouncer buffer overflow in SCRAM",
  "description": "The SCRAM code in PgBouncer before 1.25.2 did not check the return value of strlcat() correctly when building the contents of the SCRAM client-final-message. A malicious backend that sends a SCRAM server-final-message with a long nonce can trigger a stack overflow.",
  "published": "2026-05-09T01:16:09Z",
  "severity": "Important",
  "cvss": 9.8,
  "cvssVector": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
  "cwe": "Stack-based Buffer Overflow",
  "epss": 0.00372,
  "epssPercentile": 0.31322,
  "priority": "High",
  "priorityTier": 3,
  "exploited": false,
  "vendorExploited": false,
  "disclosed": false,
  "vendorAdvisory": "https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-6665",
  "fixes": [
    {
      "platform": "linux",
      "product": "pgbouncer",
      "release": "Debian 13.5 (trixie)",
      "fixedVersion": "1.24.1-1\u002Bdeb13u2",
      "fix": "DEBIAN-CVE-2026-6665",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2026-6665",
      "released": "2026-05-27T17:38:13Z"
    },
    {
      "platform": "linux",
      "product": "pgbouncer",
      "release": "Debian 14",
      "fixedVersion": "1.25.2-1",
      "fix": "DEBIAN-CVE-2026-6665",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2026-6665",
      "released": "2026-05-27T17:38:13Z"
    }
  ],
  "noFixYet": [],
  "dataAsOf": "2026-11-08T00:53:09Z",
  "attribution": {
    "text": "Data: Patchblox Patch Radar",
    "url": "https://patchblox.com/security/patch-radar",
    "terms": "https://patchblox.com/security/patch-radar/use-the-data"
  }
}