PYSEC-2026-705

vendorUSosv

Out-of-bounds Write in OpenCV.

view advisory published 2026-07-02Licence: CC-BY-4.0

In OpenCV 3.3.1 (corresponding with OpenCV-Python 3.3.1.11), a heap-based buffer overflow happens in cv::Jpeg2KDecoder::readComponent8u in modules/imgcodecs/src/grfmt_jpeg2000.cpp when parsing a crafted image file.

01

describes (1)

Related CVEs.

IDseverity exploitable
CVE-2018-5268USmedium5.5—
In OpenCV 3.3.1, a heap-based buffer overflow happens in cv::Jpeg2KDecoder::readComponent8u in modules/imgcodecs/src/grfmt_jpeg2000.cpp when parsing a crafted image file.
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