MEDIUM5.3

PYSEC-2026-726

Out-of-bounds Read in OpenCV

Quick fix

PYSEC-2026-726 — opencv-contrib-python-headless: upgrade to the fixed version with the command below.

pip install --upgrade 'opencv-contrib-python-headless>=4.1.2.30'

Details

OpenCV 4.1.1 has an out-of-bounds read in hal_baseline::v_load in core/hal/intrin_sse.hpp when called from computeSSDMeanNorm in modules/video/src/dis_flow.cpp.

Are you affected?

Enter the version of the package you're using.

Affected packages

PyPI/opencv-contrib-python-headless

Introduced in: 0Fixed in: 4.1.2.30

Fixpip install --upgrade 'opencv-contrib-python-headless>=4.1.2.30'

References

https://nvd.nist.gov/vuln/detail/CVE-2019-16249[ADVISORY]
https://github.com/opencv/opencv/issues/15481[WEB]
https://github.com/opencv/opencv/pull/15531[WEB]
https://bugzilla.redhat.com/show_bug.cgi?id=1752702[WEB]
https://github.com/opencv/opencv-python[PACKAGE]
https://github.com/opencv/opencv-python/releases/tag/30[WEB]
https://pypi.org/project/opencv-contrib-python-headless[PACKAGE]
https://github.com/advisories/GHSA-x3rm-644h-67m8[ADVISORY]