{
  "cveId": "CVE-2026-18938",
  "url": "https://patchblox.com/security/cve/CVE-2026-18938",
  "summary": "CVE-2026-18938 is fixed in 3 products on 1 platform, first by DEBIAN-CVE-2026-18938, released August 22, 2026. It is not reported as exploited. Patch Radar priority: Routine.",
  "title": "p11-kit: A flaw was found in p11-kit",
  "description": "A flaw was found in p11-kit. A local attacker, or one with equivalent access to a reachable RPC channel, could exploit an integer overflow vulnerability. By sending specially crafted messages, the attacker can cause the system to miscalculate memory allocation for nested attributes. This leads to a memory corruption issue, specifically a heap out-of-bounds write, which can crash the p11-kit RPC parsing process, resulting in a Denial of Service (DoS). This vulnerability is only exploitable on 32 bit systems.",
  "published": "2026-08-07T02:16:00Z",
  "severity": "medium",
  "cvss": 6.2,
  "cvssVector": "CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
  "epss": 0.00107,
  "epssPercentile": 0.01139,
  "priority": "Routine",
  "priorityTier": 4,
  "exploited": false,
  "vendorExploited": false,
  "disclosed": false,
  "fixes": [
    {
      "platform": "linux",
      "product": "libp11-kit0",
      "release": "Ubuntu 18.04.6 LTS (bionic)",
      "fixedVersion": "0.23.9-2ubuntu0.1\u002Besm1",
      "fix": "libp11-kit0 0.23.9-2ubuntu0.1\u002Besm1",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-bionic-libp11-kit0-0.23.9-2ubuntu0.1-esm1",
      "released": "2026-09-03T01:35:39Z"
    },
    {
      "platform": "linux",
      "product": "libp11-kit0",
      "release": "Ubuntu 20.04 LTS (focal)",
      "fixedVersion": "0.23.20-1ubuntu0.1\u002Besm1",
      "fix": "libp11-kit0 0.23.20-1ubuntu0.1\u002Besm1",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-focal-libp11-kit0-0.23.20-1ubuntu0.1-esm1",
      "released": "2026-09-03T01:35:42Z"
    },
    {
      "platform": "linux",
      "product": "libp11-kit0",
      "release": "Ubuntu 22.04.1 LTS (jammy)",
      "fixedVersion": "0.24.0-6ubuntu0.1",
      "fix": "libp11-kit0 0.24.0-6ubuntu0.1",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-jammy-libp11-kit0-0.24.0-6ubuntu0.1",
      "released": "2026-09-03T01:35:44Z"
    },
    {
      "platform": "linux",
      "product": "libp11-kit0",
      "release": "Ubuntu 24.04.5 LTS (noble)",
      "fixedVersion": "0.25.3-4ubuntu2.2",
      "fix": "libp11-kit0 0.25.3-4ubuntu2.2",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-noble-libp11-kit0-0.25.3-4ubuntu2.2",
      "released": "2026-09-03T01:35:47Z"
    },
    {
      "platform": "linux",
      "product": "p11-kit",
      "release": "Debian 14",
      "fixedVersion": "0.26.5-1",
      "fix": "DEBIAN-CVE-2026-18938",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2026-18938",
      "released": "2026-08-22T23:48:30Z"
    },
    {
      "platform": "linux",
      "product": "p11-kit",
      "release": "Ubuntu 18.04.6 LTS (bionic)",
      "fixedVersion": "0.23.9-2ubuntu0.1\u002Besm1",
      "fix": "p11-kit 0.23.9-2ubuntu0.1\u002Besm1",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-bionic-p11-kit-0.23.9-2ubuntu0.1-esm1",
      "released": "2026-09-03T01:35:39Z"
    },
    {
      "platform": "linux",
      "product": "p11-kit",
      "release": "Ubuntu 20.04 LTS (focal)",
      "fixedVersion": "0.23.20-1ubuntu0.1\u002Besm1",
      "fix": "p11-kit 0.23.20-1ubuntu0.1\u002Besm1",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-focal-p11-kit-0.23.20-1ubuntu0.1-esm1",
      "released": "2026-09-03T01:35:42Z"
    },
    {
      "platform": "linux",
      "product": "p11-kit",
      "release": "Ubuntu 22.04.1 LTS (jammy)",
      "fixedVersion": "0.24.0-6ubuntu0.1",
      "fix": "p11-kit 0.24.0-6ubuntu0.1",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-jammy-p11-kit-0.24.0-6ubuntu0.1",
      "released": "2026-09-03T01:35:44Z"
    },
    {
      "platform": "linux",
      "product": "p11-kit",
      "release": "Ubuntu 24.04.5 LTS (noble)",
      "fixedVersion": "0.25.3-4ubuntu2.2",
      "fix": "p11-kit 0.25.3-4ubuntu2.2",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-noble-p11-kit-0.25.3-4ubuntu2.2",
      "released": "2026-09-03T01:35:47Z"
    },
    {
      "platform": "linux",
      "product": "p11-kit",
      "release": "opensuse-leap 16.0",
      "fixedVersion": "0.25.5-160000.3.1",
      "fix": "OPENSUSE-SU-2026:22105-1",
      "url": "https://patchblox.com/security/fix/linux/opensuse-su-2026-22105-1",
      "released": "2026-11-07T00:47:19Z"
    },
    {
      "platform": "linux",
      "product": "p11-kit",
      "release": "sles 16.0",
      "fixedVersion": "0.25.5-160000.3.1",
      "fix": "SUSE-SU-2026:24255-1",
      "url": "https://patchblox.com/security/fix/linux/suse-su-2026-24255-1",
      "released": "2026-11-07T00:44:01Z"
    },
    {
      "platform": "linux",
      "product": "p11-kit-modules",
      "release": "Ubuntu 18.04.6 LTS (bionic)",
      "fixedVersion": "0.23.9-2ubuntu0.1\u002Besm1",
      "fix": "p11-kit-modules 0.23.9-2ubuntu0.1\u002Besm1",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-bionic-p11-kit-modules-0.23.9-2ubuntu0.1-esm1",
      "released": "2026-09-03T01:35:39Z"
    },
    {
      "platform": "linux",
      "product": "p11-kit-modules",
      "release": "Ubuntu 20.04 LTS (focal)",
      "fixedVersion": "0.23.20-1ubuntu0.1\u002Besm1",
      "fix": "p11-kit-modules 0.23.20-1ubuntu0.1\u002Besm1",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-focal-p11-kit-modules-0.23.20-1ubuntu0.1-esm1",
      "released": "2026-09-03T01:35:42Z"
    },
    {
      "platform": "linux",
      "product": "p11-kit-modules",
      "release": "Ubuntu 22.04.1 LTS (jammy)",
      "fixedVersion": "0.24.0-6ubuntu0.1",
      "fix": "p11-kit-modules 0.24.0-6ubuntu0.1",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-jammy-p11-kit-modules-0.24.0-6ubuntu0.1",
      "released": "2026-09-03T01:35:44Z"
    },
    {
      "platform": "linux",
      "product": "p11-kit-modules",
      "release": "Ubuntu 24.04.5 LTS (noble)",
      "fixedVersion": "0.25.3-4ubuntu2.2",
      "fix": "p11-kit-modules 0.25.3-4ubuntu2.2",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-noble-p11-kit-modules-0.25.3-4ubuntu2.2",
      "released": "2026-09-03T01:35:47Z"
    }
  ],
  "noFixYet": [],
  "dataAsOf": "2026-11-08T19:12:23Z",
  "attribution": {
    "text": "Data: Patchblox Patch Radar",
    "url": "https://patchblox.com/security/patch-radar",
    "terms": "https://patchblox.com/security/patch-radar/use-the-data"
  }
}