PYSEC-2026-2825

    Dashboard / Vulnerabilities / PYSEC-2026-2825

    PYSEC-2026-2825

    Published: 9 Jul 2026Last Modified: 13 Jul 2026

    Summary: Integer Overflow or Wraparound in OpenCV.

    Details: In opencv/modules/imgcodecs/src/utils.cpp, functions FillUniColor and FillUniGray do not check the input length, which can lead to integer overflow. If the image is from remote, may lead to remote code execution or denial of service. This affects Opencv 3.3 (corresponding with OpenCV-Python 3.3.0.9) and earlier.

    References: https://nvd.nist.gov/vuln/detail/CVE-2017-1000450, https://github.com/opencv/opencv/issues/9723, https://github.com/opencv/opencv/pull/9726/commits/c58152d94ba878b2d7d76bcac59146312199b9eb, https://github.com/blendin/pocs/blob/master/opencv/0.OOB_Write_FillUniColor, https://github.com/opencv/opencv-python, https://lists.debian.org/debian-lts-announce/2018/01/msg00008.html, https://lists.debian.org/debian-lts-announce/2018/07/msg00030.html, https://lists.debian.org/debian-lts-announce/2021/10/msg00028.html, https://pypi.org/project/opencv-python, https://github.com/advisories/GHSA-m43c-649m-pm48

    Affected packages

    Package

    Name: opencv-python

    Purl: pkg:pypi/opencv-python

    Affected ranges

    Type: ECOSYSTEM

    Events:

    Introduced- 0
    Fixed -3.3.1.11

    Affected versions

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High
    PYSEC-2026-2825 | CVE-DB