{
  "cveId": "CVE-2026-20031",
  "url": "https://patchblox.com/security/cve/CVE-2026-20031",
  "summary": "CVE-2026-20031 is fixed in 51 products on 1 platform, first by clamav 1.4.4\u002Bdfsg-0ubuntu0.22.04.1, released March 4, 2026. It is not reported as exploited. Patch Radar priority: Routine.",
  "title": "clamav: This update for clamav fixes the following issues:\n\nUpdate to clamav 1.5.2:\n\nSecurity issue:\n\n- CVE-2026-20031: impro...",
  "description": "This update for clamav fixes the following issues:\n\nUpdate to clamav 1.5.2:\n\nSecurity issue:\n\n- CVE-2026-20031: improper error handling in the HTML CSS module when splitting UTF-8 strings can lead to denial of\n  service conditions via a crafted HTML file (bsc#1259207).\n\nNon security issue:\n\n- Support transactional updates (jsc#PED-14819).\n\nChangelog:\n\n * Fixed a possible infinite loop when scanning some JPEG files by\n upgrading affected ClamAV dependency, a Rust image library.\n * The CVD verification process will now ignore certificate files\n in the CVD certs directory when the user lacks read permissions.\n * Freshclam: Fix CLD verification bug with PrivateMirror option.\n * Upgraded the Rust bytes dependency to a newer version to\n resolve RUSTSEC-2026-0007 advisory.\n * Fixed a possible crash caused by invalid pointer alignment on\n some platforms.\n * Minimal required Rust version is now 1.87.",
  "published": "2026-03-04T10:16:00Z",
  "severity": "medium",
  "cvss": 5.3,
  "cvssVector": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L",
  "epss": 0.0047,
  "epssPercentile": 0.40899,
  "priority": "Routine",
  "priorityTier": 4,
  "exploited": false,
  "vendorExploited": false,
  "disclosed": false,
  "fixes": [
    {
      "platform": "linux",
      "product": "clamav",
      "release": "Debian 12.15 (bookworm)",
      "fixedVersion": "1.4.6\u002Bdfsg-0\u002Bdeb12u1",
      "fix": "DEBIAN-CVE-2026-20031",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2026-20031",
      "released": "2026-03-04T18:16:16Z"
    },
    {
      "platform": "linux",
      "product": "clamav",
      "release": "Debian 14",
      "fixedVersion": "1.4.4\u002Bdfsg-1",
      "fix": "DEBIAN-CVE-2026-20031",
      "url": "https://patchblox.com/security/fix/linux/debian-cve-2026-20031",
      "released": "2026-03-04T18:16:16Z"
    },
    {
      "platform": "linux",
      "product": "clamav",
      "release": "Fedora 43",
      "fixedVersion": "1.4.6-1.fc43",
      "fix": "FEDORA-2026-A9BEEC8485",
      "url": "https://patchblox.com/security/fix/linux/fedora-2026-a9beec8485",
      "released": "2026-08-10T15:57:38Z"
    },
    {
      "platform": "linux",
      "product": "clamav",
      "release": "Ubuntu 22.04.1 LTS (jammy)",
      "fixedVersion": "1.4.4\u002Bdfsg-0ubuntu0.22.04.1",
      "fix": "clamav 1.4.4\u002Bdfsg-0ubuntu0.22.04.1",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-jammy-clamav-1.4.4-dfsg-0ubuntu0.22.04.1",
      "released": "2026-03-04T10:16:00Z"
    },
    {
      "platform": "linux",
      "product": "clamav",
      "release": "Ubuntu 24.04.5 LTS (noble)",
      "fixedVersion": "1.4.4\u002Bdfsg-0ubuntu0.24.04.1",
      "fix": "clamav 1.4.4\u002Bdfsg-0ubuntu0.24.04.1",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-noble-clamav-1.4.4-dfsg-0ubuntu0.24.04.1",
      "released": "2026-03-04T10:16:00Z"
    },
    {
      "platform": "linux",
      "product": "clamav",
      "release": "Ubuntu 25.10 (questing)",
      "fixedVersion": "1.4.4\u002Bdfsg-0ubuntu0.25.10.1",
      "fix": "clamav 1.4.4\u002Bdfsg-0ubuntu0.25.10.1",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-questing-clamav-1.4.4-dfsg-0ubuntu0.25.10.1",
      "released": "2026-03-04T10:16:00Z"
    },
    {
      "platform": "linux",
      "product": "clamav",
      "release": "Ubuntu 26.04.1 LTS (resolute)",
      "fixedVersion": "1.4.4\u002Bdfsg-0ubuntu0.26.04.1",
      "fix": "clamav 1.4.4\u002Bdfsg-0ubuntu0.26.04.1",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-resolute-clamav-1.4.4-dfsg-0ubuntu0.26.04.1",
      "released": "2026-03-04T10:16:00Z"
    },
    {
      "platform": "linux",
      "product": "clamav",
      "release": "opensuse-leap 15.6",
      "fixedVersion": "1.5.2-150600.18.25.1",
      "fix": "SUSE-SU-2026:1325-1",
      "url": "https://patchblox.com/security/fix/linux/suse-su-2026-1325-1",
      "released": "2026-04-14T13:15:45Z"
    },
    {
      "platform": "linux",
      "product": "clamav",
      "release": "opensuse-leap 16.0",
      "fixedVersion": "1.5.2-160000.1.1",
      "fix": "OPENSUSE-SU-2026:20479-1",
      "url": "https://patchblox.com/security/fix/linux/opensuse-su-2026-20479-1",
      "released": "2026-04-20T14:56:29Z"
    },
    {
      "platform": "linux",
      "product": "clamav",
      "release": "sles 15.6",
      "fixedVersion": "1.5.2-150600.18.25.1",
      "fix": "SUSE-SU-2026:1325-1",
      "url": "https://patchblox.com/security/fix/linux/suse-su-2026-1325-1",
      "released": "2026-04-14T13:15:45Z"
    },
    {
      "platform": "linux",
      "product": "clamav",
      "release": "sles 15.7",
      "fixedVersion": "1.5.2-150600.18.25.1",
      "fix": "SUSE-SU-2026:1325-1",
      "url": "https://patchblox.com/security/fix/linux/suse-su-2026-1325-1",
      "released": "2026-04-14T13:15:45Z"
    },
    {
      "platform": "linux",
      "product": "clamav-base",
      "release": "Ubuntu 22.04.1 LTS (jammy)",
      "fixedVersion": "1.4.4\u002Bdfsg-0ubuntu0.22.04.1",
      "fix": "clamav-base 1.4.4\u002Bdfsg-0ubuntu0.22.04.1",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-jammy-clamav-base-1.4.4-dfsg-0ubuntu0.22.04.1",
      "released": "2026-03-04T10:16:00Z"
    },
    {
      "platform": "linux",
      "product": "clamav-base",
      "release": "Ubuntu 24.04.5 LTS (noble)",
      "fixedVersion": "1.4.4\u002Bdfsg-0ubuntu0.24.04.1",
      "fix": "clamav-base 1.4.4\u002Bdfsg-0ubuntu0.24.04.1",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-noble-clamav-base-1.4.4-dfsg-0ubuntu0.24.04.1",
      "released": "2026-03-04T10:16:00Z"
    },
    {
      "platform": "linux",
      "product": "clamav-base",
      "release": "Ubuntu 25.10 (questing)",
      "fixedVersion": "1.4.4\u002Bdfsg-0ubuntu0.25.10.1",
      "fix": "clamav-base 1.4.4\u002Bdfsg-0ubuntu0.25.10.1",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-questing-clamav-base-1.4.4-dfsg-0ubuntu0.25.10.1",
      "released": "2026-03-04T10:16:00Z"
    },
    {
      "platform": "linux",
      "product": "clamav-base",
      "release": "Ubuntu 26.04.1 LTS (resolute)",
      "fixedVersion": "1.4.4\u002Bdfsg-0ubuntu0.26.04.1",
      "fix": "clamav-base 1.4.4\u002Bdfsg-0ubuntu0.26.04.1",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-resolute-clamav-base-1.4.4-dfsg-0ubuntu0.26.04.1",
      "released": "2026-03-04T10:16:00Z"
    },
    {
      "platform": "linux",
      "product": "clamav-daemon",
      "release": "Ubuntu 22.04.1 LTS (jammy)",
      "fixedVersion": "1.4.4\u002Bdfsg-0ubuntu0.22.04.1",
      "fix": "clamav-daemon 1.4.4\u002Bdfsg-0ubuntu0.22.04.1",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-jammy-clamav-daemon-1.4.4-dfsg-0ubuntu0.22.04.1",
      "released": "2026-03-04T10:16:00Z"
    },
    {
      "platform": "linux",
      "product": "clamav-daemon",
      "release": "Ubuntu 24.04.5 LTS (noble)",
      "fixedVersion": "1.4.4\u002Bdfsg-0ubuntu0.24.04.1",
      "fix": "clamav-daemon 1.4.4\u002Bdfsg-0ubuntu0.24.04.1",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-noble-clamav-daemon-1.4.4-dfsg-0ubuntu0.24.04.1",
      "released": "2026-03-04T10:16:00Z"
    },
    {
      "platform": "linux",
      "product": "clamav-daemon",
      "release": "Ubuntu 25.10 (questing)",
      "fixedVersion": "1.4.4\u002Bdfsg-0ubuntu0.25.10.1",
      "fix": "clamav-daemon 1.4.4\u002Bdfsg-0ubuntu0.25.10.1",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-questing-clamav-daemon-1.4.4-dfsg-0ubuntu0.25.10.1",
      "released": "2026-03-04T10:16:00Z"
    },
    {
      "platform": "linux",
      "product": "clamav-daemon",
      "release": "Ubuntu 26.04.1 LTS (resolute)",
      "fixedVersion": "1.4.4\u002Bdfsg-0ubuntu0.26.04.1",
      "fix": "clamav-daemon 1.4.4\u002Bdfsg-0ubuntu0.26.04.1",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-resolute-clamav-daemon-1.4.4-dfsg-0ubuntu0.26.04.1",
      "released": "2026-03-04T10:16:00Z"
    },
    {
      "platform": "linux",
      "product": "clamav-data",
      "release": "Fedora 43",
      "fixedVersion": "1.4.6-1.fc43",
      "fix": "FEDORA-2026-A9BEEC8485",
      "url": "https://patchblox.com/security/fix/linux/fedora-2026-a9beec8485",
      "released": "2026-08-10T15:57:38Z"
    },
    {
      "platform": "linux",
      "product": "clamav-debuginfo",
      "release": "Fedora 43",
      "fixedVersion": "1.4.6-1.fc43",
      "fix": "FEDORA-2026-A9BEEC8485",
      "url": "https://patchblox.com/security/fix/linux/fedora-2026-a9beec8485",
      "released": "2026-08-10T15:57:38Z"
    },
    {
      "platform": "linux",
      "product": "clamav-debugsource",
      "release": "Fedora 43",
      "fixedVersion": "1.4.6-1.fc43",
      "fix": "FEDORA-2026-A9BEEC8485",
      "url": "https://patchblox.com/security/fix/linux/fedora-2026-a9beec8485",
      "released": "2026-08-10T15:57:38Z"
    },
    {
      "platform": "linux",
      "product": "clamav-devel",
      "release": "Fedora 43",
      "fixedVersion": "1.4.6-1.fc43",
      "fix": "FEDORA-2026-A9BEEC8485",
      "url": "https://patchblox.com/security/fix/linux/fedora-2026-a9beec8485",
      "released": "2026-08-10T15:57:38Z"
    },
    {
      "platform": "linux",
      "product": "clamav-doc",
      "release": "Fedora 43",
      "fixedVersion": "1.4.6-1.fc43",
      "fix": "FEDORA-2026-A9BEEC8485",
      "url": "https://patchblox.com/security/fix/linux/fedora-2026-a9beec8485",
      "released": "2026-08-10T15:57:38Z"
    },
    {
      "platform": "linux",
      "product": "clamav-docs",
      "release": "Ubuntu 22.04.1 LTS (jammy)",
      "fixedVersion": "1.4.4\u002Bdfsg-0ubuntu0.22.04.1",
      "fix": "clamav-docs 1.4.4\u002Bdfsg-0ubuntu0.22.04.1",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-jammy-clamav-docs-1.4.4-dfsg-0ubuntu0.22.04.1",
      "released": "2026-03-04T10:16:00Z"
    },
    {
      "platform": "linux",
      "product": "clamav-docs",
      "release": "Ubuntu 24.04.5 LTS (noble)",
      "fixedVersion": "1.4.4\u002Bdfsg-0ubuntu0.24.04.1",
      "fix": "clamav-docs 1.4.4\u002Bdfsg-0ubuntu0.24.04.1",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-noble-clamav-docs-1.4.4-dfsg-0ubuntu0.24.04.1",
      "released": "2026-03-04T10:16:00Z"
    },
    {
      "platform": "linux",
      "product": "clamav-docs",
      "release": "Ubuntu 25.10 (questing)",
      "fixedVersion": "1.4.4\u002Bdfsg-0ubuntu0.25.10.1",
      "fix": "clamav-docs 1.4.4\u002Bdfsg-0ubuntu0.25.10.1",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-questing-clamav-docs-1.4.4-dfsg-0ubuntu0.25.10.1",
      "released": "2026-03-04T10:16:00Z"
    },
    {
      "platform": "linux",
      "product": "clamav-docs",
      "release": "Ubuntu 26.04.1 LTS (resolute)",
      "fixedVersion": "1.4.4\u002Bdfsg-0ubuntu0.26.04.1",
      "fix": "clamav-docs 1.4.4\u002Bdfsg-0ubuntu0.26.04.1",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-resolute-clamav-docs-1.4.4-dfsg-0ubuntu0.26.04.1",
      "released": "2026-03-04T10:16:00Z"
    },
    {
      "platform": "linux",
      "product": "clamav-filesystem",
      "release": "Fedora 43",
      "fixedVersion": "1.4.6-1.fc43",
      "fix": "FEDORA-2026-A9BEEC8485",
      "url": "https://patchblox.com/security/fix/linux/fedora-2026-a9beec8485",
      "released": "2026-08-10T15:57:38Z"
    },
    {
      "platform": "linux",
      "product": "clamav-freshclam",
      "release": "Fedora 43",
      "fixedVersion": "1.4.6-1.fc43",
      "fix": "FEDORA-2026-A9BEEC8485",
      "url": "https://patchblox.com/security/fix/linux/fedora-2026-a9beec8485",
      "released": "2026-08-10T15:57:38Z"
    },
    {
      "platform": "linux",
      "product": "clamav-freshclam",
      "release": "Ubuntu 22.04.1 LTS (jammy)",
      "fixedVersion": "1.4.4\u002Bdfsg-0ubuntu0.22.04.1",
      "fix": "clamav-freshclam 1.4.4\u002Bdfsg-0ubuntu0.22.04.1",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-jammy-clamav-freshclam-1.4.4-dfsg-0ubuntu0.22.04.1",
      "released": "2026-03-04T10:16:00Z"
    },
    {
      "platform": "linux",
      "product": "clamav-freshclam",
      "release": "Ubuntu 24.04.5 LTS (noble)",
      "fixedVersion": "1.4.4\u002Bdfsg-0ubuntu0.24.04.1",
      "fix": "clamav-freshclam 1.4.4\u002Bdfsg-0ubuntu0.24.04.1",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-noble-clamav-freshclam-1.4.4-dfsg-0ubuntu0.24.04.1",
      "released": "2026-03-04T10:16:00Z"
    },
    {
      "platform": "linux",
      "product": "clamav-freshclam",
      "release": "Ubuntu 25.10 (questing)",
      "fixedVersion": "1.4.4\u002Bdfsg-0ubuntu0.25.10.1",
      "fix": "clamav-freshclam 1.4.4\u002Bdfsg-0ubuntu0.25.10.1",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-questing-clamav-freshclam-1.4.4-dfsg-0ubuntu0.25.10.1",
      "released": "2026-03-04T10:16:00Z"
    },
    {
      "platform": "linux",
      "product": "clamav-freshclam",
      "release": "Ubuntu 26.04.1 LTS (resolute)",
      "fixedVersion": "1.4.4\u002Bdfsg-0ubuntu0.26.04.1",
      "fix": "clamav-freshclam 1.4.4\u002Bdfsg-0ubuntu0.26.04.1",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-resolute-clamav-freshclam-1.4.4-dfsg-0ubuntu0.26.04.1",
      "released": "2026-03-04T10:16:00Z"
    },
    {
      "platform": "linux",
      "product": "clamav-freshclam-debuginfo",
      "release": "Fedora 43",
      "fixedVersion": "1.4.6-1.fc43",
      "fix": "FEDORA-2026-A9BEEC8485",
      "url": "https://patchblox.com/security/fix/linux/fedora-2026-a9beec8485",
      "released": "2026-08-10T15:57:38Z"
    },
    {
      "platform": "linux",
      "product": "clamav-lib",
      "release": "Fedora 43",
      "fixedVersion": "1.4.6-1.fc43",
      "fix": "FEDORA-2026-A9BEEC8485",
      "url": "https://patchblox.com/security/fix/linux/fedora-2026-a9beec8485",
      "released": "2026-08-10T15:57:38Z"
    },
    {
      "platform": "linux",
      "product": "clamav-lib-debuginfo",
      "release": "Fedora 43",
      "fixedVersion": "1.4.6-1.fc43",
      "fix": "FEDORA-2026-A9BEEC8485",
      "url": "https://patchblox.com/security/fix/linux/fedora-2026-a9beec8485",
      "released": "2026-08-10T15:57:38Z"
    },
    {
      "platform": "linux",
      "product": "clamav-milter",
      "release": "Fedora 43",
      "fixedVersion": "1.4.6-1.fc43",
      "fix": "FEDORA-2026-A9BEEC8485",
      "url": "https://patchblox.com/security/fix/linux/fedora-2026-a9beec8485",
      "released": "2026-08-10T15:57:38Z"
    },
    {
      "platform": "linux",
      "product": "clamav-milter",
      "release": "Ubuntu 22.04.1 LTS (jammy)",
      "fixedVersion": "1.4.4\u002Bdfsg-0ubuntu0.22.04.1",
      "fix": "clamav-milter 1.4.4\u002Bdfsg-0ubuntu0.22.04.1",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-jammy-clamav-milter-1.4.4-dfsg-0ubuntu0.22.04.1",
      "released": "2026-03-04T10:16:00Z"
    },
    {
      "platform": "linux",
      "product": "clamav-milter",
      "release": "Ubuntu 24.04.5 LTS (noble)",
      "fixedVersion": "1.4.4\u002Bdfsg-0ubuntu0.24.04.1",
      "fix": "clamav-milter 1.4.4\u002Bdfsg-0ubuntu0.24.04.1",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-noble-clamav-milter-1.4.4-dfsg-0ubuntu0.24.04.1",
      "released": "2026-03-04T10:16:00Z"
    },
    {
      "platform": "linux",
      "product": "clamav-milter",
      "release": "Ubuntu 25.10 (questing)",
      "fixedVersion": "1.4.4\u002Bdfsg-0ubuntu0.25.10.1",
      "fix": "clamav-milter 1.4.4\u002Bdfsg-0ubuntu0.25.10.1",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-questing-clamav-milter-1.4.4-dfsg-0ubuntu0.25.10.1",
      "released": "2026-03-04T10:16:00Z"
    },
    {
      "platform": "linux",
      "product": "clamav-milter",
      "release": "Ubuntu 26.04.1 LTS (resolute)",
      "fixedVersion": "1.4.4\u002Bdfsg-0ubuntu0.26.04.1",
      "fix": "clamav-milter 1.4.4\u002Bdfsg-0ubuntu0.26.04.1",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-resolute-clamav-milter-1.4.4-dfsg-0ubuntu0.26.04.1",
      "released": "2026-03-04T10:16:00Z"
    },
    {
      "platform": "linux",
      "product": "clamav-milter-debuginfo",
      "release": "Fedora 43",
      "fixedVersion": "1.4.6-1.fc43",
      "fix": "FEDORA-2026-A9BEEC8485",
      "url": "https://patchblox.com/security/fix/linux/fedora-2026-a9beec8485",
      "released": "2026-08-10T15:57:38Z"
    },
    {
      "platform": "linux",
      "product": "clamav-testfiles",
      "release": "Ubuntu 22.04.1 LTS (jammy)",
      "fixedVersion": "1.4.4\u002Bdfsg-0ubuntu0.22.04.1",
      "fix": "clamav-testfiles 1.4.4\u002Bdfsg-0ubuntu0.22.04.1",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-jammy-clamav-testfiles-1.4.4-dfsg-0ubuntu0.22.04.1",
      "released": "2026-03-04T10:16:00Z"
    },
    {
      "platform": "linux",
      "product": "clamav-testfiles",
      "release": "Ubuntu 24.04.5 LTS (noble)",
      "fixedVersion": "1.4.4\u002Bdfsg-0ubuntu0.24.04.1",
      "fix": "clamav-testfiles 1.4.4\u002Bdfsg-0ubuntu0.24.04.1",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-noble-clamav-testfiles-1.4.4-dfsg-0ubuntu0.24.04.1",
      "released": "2026-03-04T10:16:00Z"
    },
    {
      "platform": "linux",
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