HIGH8.8
PYSEC-2026-2809
Out-of-bounds Write in OpenCV
Quick fix
PYSEC-2026-2809 — opencv-python: upgrade to the fixed version with the command below.
pip install --upgrade 'opencv-python>=3.3.1.11'Details
OpenCV (Open Source Computer Vision Library) through 3.3 (corresponding to OpenCV-Python and OpenCV-Contrib-Python 3.3.0.9) has an invalid write in the cv::RLByteStream::getBytes function in modules/imgcodecs/src/bitstrm.cpp when reading an image file by using cv::imread, as demonstrated by the 2-opencv-heapoverflow-fseek test case.
Are you affected?
Enter the version of the package you're using.
Affected packages
PyPI/opencv-python
Introduced in:
0Fixed in: 3.3.1.11Fix
pip install --upgrade 'opencv-python>=3.3.1.11'References
- https://nvd.nist.gov/vuln/detail/CVE-2017-12603[ADVISORY]
- https://github.com/opencv/opencv/issues/9309[WEB]
- https://github.com/opencv/opencv/pull/9376[WEB]
- https://github.com/opencv/opencv-python[PACKAGE]
- https://github.com/xiaoqx/pocs/blob/master/opencv.md[WEB]
- https://lists.debian.org/debian-lts-announce/2018/07/msg00030.html[WEB]
- https://lists.debian.org/debian-lts-announce/2021/10/msg00028.html[WEB]
- https://security.gentoo.org/glsa/201712-02[WEB]
- https://pypi.org/project/opencv-python[PACKAGE]
- https://github.com/advisories/GHSA-6v6p-p97v-g2p7[ADVISORY]