{
  "cveId": "CVE-2026-52681",
  "url": "https://patchblox.com/security/cve/CVE-2026-52681",
  "summary": "CVE-2026-52681 is fixed in 3 products on 1 platform, first by SUSE-SU-2026:23595-1, released September 1, 2026. It is not reported as exploited. Patch Radar priority: Routine.",
  "title": "dovecot: Sieve CPU resource usage is tracked in the compiled script, so an attacker that has valid credentials can reset the a...",
  "description": "Sieve CPU resource usage is tracked in the compiled script, so an attacker that has valid credentials can reset the accounting by repeatedly changing the active script. Compiled script files are also not removed when a script is deleted or renamed. The configured Sieve CPU limit can be bypassed, allowing sustained CPU consumption, and the leftover files increase disk consumption. Both can cause degradation of service for mail delivery. Monitor system for abnormal CPU usage and disk consumption. Update to non-vulnerable version. No publicly available exploits are known.",
  "published": "2026-08-28T12:16:30Z",
  "severity": "low",
  "cvss": 3.1,
  "cvssVector": "CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:L",
  "epss": 0.00296,
  "epssPercentile": 0.22398,
  "priority": "Routine",
  "priorityTier": 4,
  "exploited": false,
  "vendorExploited": false,
  "disclosed": false,
  "fixes": [
    {
      "platform": "linux",
      "product": "dovecot",
      "release": "Debian 12.15 (bookworm)",
      "fixedVersion": "1:2.3.19.1\u002Bdfsg1-2.1\u002Bdeb12u7",
      "fix": "DEBIAN-CVE-2026-52681",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2026-52681",
      "released": "2026-09-10T12:12:19Z"
    },
    {
      "platform": "linux",
      "product": "dovecot",
      "release": "Debian 13.5 (trixie)",
      "fixedVersion": "1:2.4.1\u002Bdfsg1-6\u002Bdeb13u7",
      "fix": "DEBIAN-CVE-2026-52681",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2026-52681",
      "released": "2026-09-10T12:12:19Z"
    },
    {
      "platform": "linux",
      "product": "dovecot",
      "release": "Debian 14",
      "fixedVersion": "1:2.4.5\u002Bdfsg1-1",
      "fix": "DEBIAN-CVE-2026-52681",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2026-52681",
      "released": "2026-09-10T12:12:19Z"
    },
    {
      "platform": "linux",
      "product": "dovecot23",
      "release": "sles 15.6",
      "fixedVersion": "2.3.21.1-150200.76.1",
      "fix": "SUSE-SU-2026:4139-1",
      "url": "https://patchblox.com/security/fix/linux/suse-su-2026-4139-1",
      "released": "2026-09-14T07:22:32Z"
    },
    {
      "platform": "linux",
      "product": "dovecot23",
      "release": "sles 15.7",
      "fixedVersion": "2.3.21.1-150200.76.1",
      "fix": "SUSE-SU-2026:4139-1",
      "url": "https://patchblox.com/security/fix/linux/suse-su-2026-4139-1",
      "released": "2026-09-14T07:22:32Z"
    },
    {
      "platform": "linux",
      "product": "dovecot24",
      "release": "opensuse-leap 16.0",
      "fixedVersion": "2.4.4-160000.2.1",
      "fix": "OPENSUSE-SU-2026:21720-1",
      "url": "https://patchblox.com/security/fix/linux/opensuse-su-2026-21720-1",
      "released": "2026-09-01T14:18:02Z"
    },
    {
      "platform": "linux",
      "product": "dovecot24",
      "release": "sles 16.0",
      "fixedVersion": "2.4.4-160000.2.1",
      "fix": "SUSE-SU-2026:23595-1",
      "url": "https://patchblox.com/security/fix/linux/suse-su-2026-23595-1",
      "released": "2026-09-01T14:12:16Z"
    }
  ],
  "noFixYet": [],
  "dataAsOf": "2026-11-08T06:59:42Z",
  "attribution": {
    "text": "Data: Patchblox Patch Radar",
    "url": "https://patchblox.com/security/patch-radar",
    "terms": "https://patchblox.com/security/patch-radar/use-the-data"
  }
}