{
  "cveId": "CVE-2026-73066",
  "url": "https://patchblox.com/security/cve/CVE-2026-73066",
  "summary": "CVE-2026-73066 is fixed in 6 products on 1 platform, first by RHSA-2026:71566, released August 11, 2026. It is not reported as exploited. Patch Radar priority: High.",
  "title": "tesseract: A commercial quality OCR engine originally developed at HP between 1985 and 1995",
  "description": "A commercial quality OCR engine originally developed at HP between 1985 and 1995. In 1995, this engine was among the top 3 evaluated by UNLV. It was open-sourced by HP and UNLV in 2005.\n\nSecurity Fix(es):\n\n* tesseract: Tesseract: Heap out-of-bounds write via crafted .traineddata (CVE-2026-73066)\n\nFor more details about the security issue(s), including the impact, a CVSS score, acknowledgments, and other related information, refer to the CVE page(s) listed in the References section.",
  "published": "2026-08-11T08:17:00Z",
  "severity": "Important",
  "cvss": 7.1,
  "cvssVector": "CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:H/A:H",
  "epss": 0.00126,
  "epssPercentile": 0.02341,
  "priority": "High",
  "priorityTier": 3,
  "exploited": false,
  "vendorExploited": false,
  "disclosed": false,
  "fixes": [
    {
      "platform": "linux",
      "product": "libtesseract4",
      "release": "Ubuntu 18.04.6 LTS (bionic)",
      "fixedVersion": "4.00~git2288-10f4998a-2ubuntu0.1~esm1",
      "fix": "libtesseract4 4.00~git2288-10f4998a-2ubuntu0.1~esm1",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-bionic-libtesseract4-4.00-git2288-10f4998a-2ubuntu0.1-esm1",
      "released": "2026-10-07T22:10:40Z"
    },
    {
      "platform": "linux",
      "product": "libtesseract4",
      "release": "Ubuntu 20.04 LTS (focal)",
      "fixedVersion": "4.1.1-2ubuntu0.1~esm1",
      "fix": "libtesseract4 4.1.1-2ubuntu0.1~esm1",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-focal-libtesseract4-4.1.1-2ubuntu0.1-esm1",
      "released": "2026-10-07T22:10:46Z"
    },
    {
      "platform": "linux",
      "product": "libtesseract4",
      "release": "Ubuntu 22.04.1 LTS (jammy)",
      "fixedVersion": "4.1.1-2.1ubuntu0.1~esm1",
      "fix": "libtesseract4 4.1.1-2.1ubuntu0.1~esm1",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-jammy-libtesseract4-4.1.1-2.1ubuntu0.1-esm1",
      "released": "2026-10-07T22:10:48Z"
    },
    {
      "platform": "linux",
      "product": "libtesseract5",
      "release": "Ubuntu 24.04.5 LTS (noble)",
      "fixedVersion": "5.3.4-1ubuntu0.1~esm1",
      "fix": "libtesseract5 5.3.4-1ubuntu0.1~esm1",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-noble-libtesseract5-5.3.4-1ubuntu0.1-esm1",
      "released": "2026-10-07T22:10:51Z"
    },
    {
      "platform": "linux",
      "product": "libtesseract5",
      "release": "Ubuntu 26.04.1 LTS (resolute)",
      "fixedVersion": "5.5.0-1ubuntu0.1~esm1",
      "fix": "libtesseract5 5.5.0-1ubuntu0.1~esm1",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-resolute-libtesseract5-5.5.0-1ubuntu0.1-esm1",
      "released": "2026-09-10T11:18:00Z"
    },
    {
      "platform": "linux",
      "product": "tesseract",
      "release": "RHEL 10",
      "fixedVersion": "5.3.4-6.el10_0.1",
      "fix": "RHSA-2026:71566",
      "url": "https://patchblox.com/security/fix/linux/rhsa-2026-71566",
      "released": "2026-08-11T14:49:16Z"
    },
    {
      "platform": "linux",
      "product": "tesseract",
      "release": "RHEL 8",
      "fixedVersion": "0:4.1.1-3.el8_10",
      "fix": "RHSA-2026:67832",
      "url": "https://patchblox.com/security/fix/linux/rhsa-2026-67832",
      "released": "2026-09-19T18:31:30Z"
    },
    {
      "platform": "linux",
      "product": "tesseract",
      "release": "RHEL 9",
      "fixedVersion": "0:4.1.1-8.el9_8",
      "fix": "RHSA-2026:67831",
      "url": "https://patchblox.com/security/fix/linux/rhsa-2026-67831",
      "released": "2026-09-19T18:32:55Z"
    },
    {
      "platform": "linux",
      "product": "tesseract",
      "release": "almalinux 8",
      "fixedVersion": "4.1.1-3.el8_10",
      "fix": "ALSA-2026:67832",
      "url": "https://patchblox.com/security/fix/linux/alsa-2026-67832",
      "released": "2026-09-16T00:00:00Z"
    },
    {
      "platform": "linux",
      "product": "tesseract",
      "release": "almalinux 9",
      "fixedVersion": "4.1.1-8.el9_8",
      "fix": "ALSA-2026:67831",
      "url": "https://patchblox.com/security/fix/linux/alsa-2026-67831",
      "released": "2026-09-16T00:00:00Z"
    },
    {
      "platform": "linux",
      "product": "tesseract",
      "release": "ol 10",
      "fixedVersion": "0:5.3.4-7.el10_2",
      "fix": "ELSA-2026-67830",
      "url": "https://patchblox.com/security/fix/linux/elsa-2026-67830",
      "released": "2026-09-16T00:00:00Z"
    },
    {
      "platform": "linux",
      "product": "tesseract",
      "release": "ol 8",
      "fixedVersion": "0:4.1.1-3.el8_10",
      "fix": "ELSA-2026-67832",
      "url": "https://patchblox.com/security/fix/linux/elsa-2026-67832",
      "released": "2026-09-16T00:00:00Z"
    },
    {
      "platform": "linux",
      "product": "tesseract",
      "release": "ol 9",
      "fixedVersion": "0:4.1.1-8.el9_8",
      "fix": "ELSA-2026-67831",
      "url": "https://patchblox.com/security/fix/linux/elsa-2026-67831",
      "released": "2026-09-16T00:00:00Z"
    },
    {
      "platform": "linux",
      "product": "tesseract",
      "release": "rocky 10",
      "fixedVersion": "0:5.3.4-7.el10_2",
      "fix": "RLSA-2026:67830",
      "url": "https://patchblox.com/security/fix/linux/rlsa-2026-67830",
      "released": "2026-09-17T12:09:45Z"
    },
    {
      "platform": "linux",
      "product": "tesseract",
      "release": "rocky 8",
      "fixedVersion": "0:4.1.1-3.el8_10",
      "fix": "RLSA-2026:67832",
      "url": "https://patchblox.com/security/fix/linux/rlsa-2026-67832",
      "released": "2026-09-17T12:01:36Z"
    },
    {
      "platform": "linux",
      "product": "tesseract",
      "release": "rocky 9",
      "fixedVersion": "0:4.1.1-8.el9_8",
      "fix": "RLSA-2026:67831",
      "url": "https://patchblox.com/security/fix/linux/rlsa-2026-67831",
      "released": "2026-09-17T06:06:39Z"
    },
    {
      "platform": "linux",
      "product": "tesseract-devel",
      "release": "RHEL 8",
      "fixedVersion": "0:4.1.1-3.el8_10",
      "fix": "RHSA-2026:67832",
      "url": "https://patchblox.com/security/fix/linux/rhsa-2026-67832",
      "released": "2026-09-19T18:31:30Z"
    },
    {
      "platform": "linux",
      "product": "tesseract-devel",
      "release": "RHEL 9",
      "fixedVersion": "0:4.1.1-8.el9_8",
      "fix": "RHSA-2026:67831",
      "url": "https://patchblox.com/security/fix/linux/rhsa-2026-67831",
      "released": "2026-09-19T18:32:55Z"
    },
    {
      "platform": "linux",
      "product": "tesseract-devel",
      "release": "almalinux 8",
      "fixedVersion": "4.1.1-3.el8_10",
      "fix": "ALSA-2026:67832",
      "url": "https://patchblox.com/security/fix/linux/alsa-2026-67832",
      "released": "2026-09-16T00:00:00Z"
    },
    {
      "platform": "linux",
      "product": "tesseract-devel",
      "release": "almalinux 9",
      "fixedVersion": "4.1.1-8.el9_8",
      "fix": "ALSA-2026:67831",
      "url": "https://patchblox.com/security/fix/linux/alsa-2026-67831",
      "released": "2026-09-16T00:00:00Z"
    },
    {
      "platform": "linux",
      "product": "tesseract-devel",
      "release": "ol 10",
      "fixedVersion": "0:5.3.4-7.el10_2",
      "fix": "ELSA-2026-67830",
      "url": "https://patchblox.com/security/fix/linux/elsa-2026-67830",
      "released": "2026-09-16T00:00:00Z"
    },
    {
      "platform": "linux",
      "product": "tesseract-devel",
      "release": "ol 8",
      "fixedVersion": "0:4.1.1-3.el8_10",
      "fix": "ELSA-2026-67832",
      "url": "https://patchblox.com/security/fix/linux/elsa-2026-67832",
      "released": "2026-09-16T00:00:00Z"
    },
    {
      "platform": "linux",
      "product": "tesseract-devel",
      "release": "ol 9",
      "fixedVersion": "0:4.1.1-8.el9_8",
      "fix": "ELSA-2026-67831",
      "url": "https://patchblox.com/security/fix/linux/elsa-2026-67831",
      "released": "2026-09-16T00:00:00Z"
    },
    {
      "platform": "linux",
      "product": "tesseract-ocr",
      "release": "Ubuntu 18.04.6 LTS (bionic)",
      "fixedVersion": "4.00~git2288-10f4998a-2ubuntu0.1~esm1",
      "fix": "tesseract-ocr 4.00~git2288-10f4998a-2ubuntu0.1~esm1",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-bionic-tesseract-ocr-4.00-git2288-10f4998a-2ubuntu0.1-esm1",
      "released": "2026-10-07T22:10:40Z"
    },
    {
      "platform": "linux",
      "product": "tesseract-ocr",
      "release": "Ubuntu 20.04 LTS (focal)",
      "fixedVersion": "4.1.1-2ubuntu0.1~esm1",
      "fix": "tesseract-ocr 4.1.1-2ubuntu0.1~esm1",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-focal-tesseract-ocr-4.1.1-2ubuntu0.1-esm1",
      "released": "2026-10-07T22:10:46Z"
    },
    {
      "platform": "linux",
      "product": "tesseract-ocr",
      "release": "Ubuntu 22.04.1 LTS (jammy)",
      "fixedVersion": "4.1.1-2.1ubuntu0.1~esm1",
      "fix": "tesseract-ocr 4.1.1-2.1ubuntu0.1~esm1",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-jammy-tesseract-ocr-4.1.1-2.1ubuntu0.1-esm1",
      "released": "2026-10-07T22:10:48Z"
    },
    {
      "platform": "linux",
      "product": "tesseract-ocr",
      "release": "Ubuntu 24.04.5 LTS (noble)",
      "fixedVersion": "5.3.4-1ubuntu0.1~esm1",
      "fix": "tesseract-ocr 5.3.4-1ubuntu0.1~esm1",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-noble-tesseract-ocr-5.3.4-1ubuntu0.1-esm1",
      "released": "2026-10-07T22:10:51Z"
    },
    {
      "platform": "linux",
      "product": "tesseract-ocr",
      "release": "Ubuntu 26.04.1 LTS (resolute)",
      "fixedVersion": "5.5.0-1ubuntu0.1~esm1",
      "fix": "tesseract-ocr 5.5.0-1ubuntu0.1~esm1",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-resolute-tesseract-ocr-5.5.0-1ubuntu0.1-esm1",
      "released": "2026-09-10T11:18:00Z"
    },
    {
      "platform": "linux",
      "product": "tesseract-ocr-all",
      "release": "Ubuntu 18.04.6 LTS (bionic)",
      "fixedVersion": "4.00~git2288-10f4998a-2ubuntu0.1~esm1",
      "fix": "tesseract-ocr-all 4.00~git2288-10f4998a-2ubuntu0.1~esm1",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-bionic-tesseract-ocr-all-4.00-git2288-10f4998a-2ubuntu0.1-esm1",
      "released": "2026-10-07T22:10:40Z"
    },
    {
      "platform": "linux",
      "product": "tesseract-ocr-all",
      "release": "Ubuntu 20.04 LTS (focal)",
      "fixedVersion": "4.1.1-2ubuntu0.1~esm1",
      "fix": "tesseract-ocr-all 4.1.1-2ubuntu0.1~esm1",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-focal-tesseract-ocr-all-4.1.1-2ubuntu0.1-esm1",
      "released": "2026-10-07T22:10:46Z"
    },
    {
      "platform": "linux",
      "product": "tesseract-ocr-all",
      "release": "Ubuntu 22.04.1 LTS (jammy)",
      "fixedVersion": "4.1.1-2.1ubuntu0.1~esm1",
      "fix": "tesseract-ocr-all 4.1.1-2.1ubuntu0.1~esm1",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-jammy-tesseract-ocr-all-4.1.1-2.1ubuntu0.1-esm1",
      "released": "2026-10-07T22:10:48Z"
    },
    {
      "platform": "linux",
      "product": "tesseract-ocr-all",
      "release": "Ubuntu 24.04.5 LTS (noble)",
      "fixedVersion": "5.3.4-1ubuntu0.1~esm1",
      "fix": "tesseract-ocr-all 5.3.4-1ubuntu0.1~esm1",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-noble-tesseract-ocr-all-5.3.4-1ubuntu0.1-esm1",
      "released": "2026-10-07T22:10:51Z"
    },
    {
      "platform": "linux",
      "product": "tesseract-ocr-all",
      "release": "Ubuntu 26.04.1 LTS (resolute)",
      "fixedVersion": "5.5.0-1ubuntu0.1~esm1",
      "fix": "tesseract-ocr-all 5.5.0-1ubuntu0.1~esm1",
      "url": "https://patchblox.com/security/fix/linux/ubuntu-resolute-tesseract-ocr-all-5.5.0-1ubuntu0.1-esm1",
      "released": "2026-09-10T11:18:00Z"
    }
  ],
  "noFixYet": [],
  "dataAsOf": "2026-11-08T13:06:02Z",
  "attribution": {
    "text": "Data: Patchblox Patch Radar",
    "url": "https://patchblox.com/security/patch-radar",
    "terms": "https://patchblox.com/security/patch-radar/use-the-data"
  }
}