PYSEC-2026-720

Vulnerability from pysec - Published: 2026-07-02 14:13 - Updated: 2026-07-06 07:37
VLAI
Details

An issue was discovered in OpenCV before 3.4.7 and 4.x before 4.1.1 (OpenCV-Python before 3.4.7.28 and 4.x before 4.1.1.26). There is an out of bounds read in the function cv::predictOrdered in modules/objdetect/src/cascadedetect.hpp, which leads to denial of service.

Severity
8.2 (High)
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:H
Impacted products
Name purl
opencv-contrib-python-headless pkg:pypi/opencv-contrib-python-headless
Aliases
To clipboard 

{
  "affected": [
    {
      "package": {
        "ecosystem": "PyPI",
        "name": "opencv-contrib-python-headless",
        "purl": "pkg:pypi/opencv-contrib-python-headless"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "3.4.7.28"
            },
            {
              "introduced": "4.0.0.21"
            },
            {
              "fixed": "4.1.1.26"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "3.4.0.14",
        "3.4.1.15",
        "3.4.2.17",
        "3.4.3.18",
        "3.4.4.19",
        "3.4.5.20",
        "3.4.6.27",
        "4.0.0.21",
        "4.0.1.23",
        "4.0.1.24",
        "4.1.0.25"
      ]
    }
  ],
  "aliases": [
    "CVE-2019-14491",
    "GHSA-fm39-cw8h-3p63"
  ],
  "details": "An issue was discovered in OpenCV before 3.4.7 and 4.x before 4.1.1 (OpenCV-Python before 3.4.7.28 and 4.x before 4.1.1.26). There is an out of bounds read in the function cv::predictOrdered\u003ccv::HaarEvaluator\u003e in modules/objdetect/src/cascadedetect.hpp, which leads to denial of service.",
  "id": "PYSEC-2026-720",
  "modified": "2026-07-06T07:37:00.556884Z",
  "published": "2026-07-02T14:13:12.650176Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2019-14491"
    },
    {
      "type": "WEB",
      "url": "https://github.com/opencv/opencv/issues/15125"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/opencv/opencv-python"
    },
    {
      "type": "WEB",
      "url": "https://github.com/opencv/opencv/compare/33b765d...4a7ca5a"
    },
    {
      "type": "WEB",
      "url": "https://github.com/opencv/opencv/compare/371bba8...ddbd10c"
    },
    {
      "type": "WEB",
      "url": "https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/HPFLN6QAX6SUA4XR4NMKKXX26H3TYCVQ"
    },
    {
      "type": "PACKAGE",
      "url": "https://pypi.org/project/opencv-contrib-python-headless"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/advisories/GHSA-fm39-cw8h-3p63"
    }
  ],
  "severity": [
    {
      "score": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:H",
      "type": "CVSS_V3"
    }
  ],
  "summary": "Out-of-bounds Read in OpenCV"
}


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