OpenCV (Open Source Computer Vision Library) through 3.3 (corresponding to OpenCV-Python 3.3.0.9) has a denial of service (memory consumption) issue, as demonstrated by the 10-opencv-dos-memory-exhaust test case.
"https://github.com/pypa/advisory-database/blob/main/vulns/opencv-contrib-python/PYSEC-2026-713.yaml"