PYSEC-2026-705 Out-of-bounds Write in OpenCV.

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/grfmtjpeg2000.cpp when parsing a crafted image file...

PYSEC-2026-724 Out-of-bounds Write in OpenCV

An exploitable heap buffer overflow vulnerability exists in the data structure persistence functionality of OpenCV 4.1.0 corresponds with OpenCV-Python 4.1.0.25. A specially crafted XML file can cause a buffer overflow, resulting in multiple heap corruptions and potential code execution. An...

PYSEC-2026-726 Out-of-bounds Read in OpenCV

OpenCV 4.1.1 has an out-of-bounds read in halbaseline::vload in core/hal/intrinsse.hpp when called from computeSSDMeanNorm in modules/video/src/disflow.cpp...

PYSEC-2026-725 Out-of-bounds Write in OpenCV

An exploitable heap buffer overflow vulnerability exists in the data structure persistence functionality of OpenCV, version 4.1.0 corresponds with OpenCV-Python version 4.1.2.30. A specially crafted JSON file can cause a buffer overflow, resulting in multiple heap corruptions and potentially code...

PYSEC-2026-719 Out-of-bounds Write in OpenCV

In opencv calls that use libpng, there is a possible out of bounds write due to a missing bounds check. This could lead to local escalation of privilege with no additional execution privileges required. User interaction is not required for exploitation. Product: AndroidVersions: Android-10Android...

PYSEC-2026-718 NULL Pointer Dereference in OpenCV.

An issue was discovered in OpenCV before 4.1.1 OpenCV-Python before 4.1.1.26. There is a NULL pointer dereference in the function cv::XMLParser::parse at modules/core/src/persistence.cpp...

PYSEC-2026-700 Out-of-bounds Write in OpenCV

OpenCV Open Source Computer Vision Library 3.3 corresponding to OpenCV-Python 3.3.0.9 has an out-of-bounds write error in the function FillColorRow1 in utils.cpp when reading an image file by using cv::imread. NOTE: this vulnerability exists because of an incomplete fix for CVE-2017-12597...

PYSEC-2026-711 Improper Restriction of Operations within the Bounds of a Memory Buffer in OpenCV

OpenCV 3.3.1 corresponding with opencv-python and opencv-contrib-python 3.3.1.11 has a Buffer Overflow in the cv::PxMDecoder::readData function in grfmtpxm.cpp, because an incorrect size value is used...

PYSEC-2026-722 Divide By Zero in OpenCV.

An issue was discovered in OpenCV 4.1.0 OpenCV-Python 4.1.0.25. There is a divide-by-zero error in cv::HOGDescriptor::getDescriptorSize in modules/objdetect/src/hog.cpp...

PYSEC-2026-721 Out-of-bounds Read and Out-of-bounds Write in OpenCV

An issue was discovered in OpenCV before 3.4.7 and 4.x before 4.1.1 OpenCV-Python before 3.4.7.28 and 4.x before 4.1.1.26. There is an out of bounds read/write in the function HaarEvaluator::OptFeature::calc in modules/objdetect/src/cascadedetect.hpp, which leads to denial of service...

PYSEC-2026-702 Out-of-bounds Read in OpenCV

In OpenCV 3.3.1 corresponding with OpenCV-Python 3.3.1.11, a heap-based buffer over-read exists in the function cv::HdrDecoder::checkSignature in modules/imgcodecs/src/grfmthdr.cpp...

PYSEC-2026-712 Integer Overflow or Wraparound in OpenCV.

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....

PYSEC-2026-703 Reachable Assertion in OpenCV.

In OpenCV 3.3.1 corresponds with OpenCV-Python 3.3.1.11, an assertion failure happens in cv::RBaseStream::setPos in modules/imgcodecs/src/bitstrm.cpp because of an incorrect integer cast...

PYSEC-2026-716 Improper Restriction of Operations within the Bounds of a Memory Buffer in OpenCV

OpenCV Open Source Computer Vision Library through 3.3 corresponding to OpenCV-Python 3.3.0.9 has a buffer overflow in the cv::BmpDecoder::readData function in modules/imgcodecs/src/grfmtbmp.cpp when reading an image file by using cv::imread, as demonstrated by the 4-buf-overflow-readData-memcpy...

PYSEC-2026-709 Denial of Service in OpenCV

OpenCV Open Source Computer Vision Library through 3.3 corresponding to OpenCV-Python 3.3.0.9 has a denial of service CPU consumption issue, as demonstrated by the 11-opencv-dos-cpu-exhaust test case...

PYSEC-2026-701 Out-of-bounds Write in OpenCV

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...

PYSEC-2026-699 Improper Restriction of Operations within the Bounds of a Memory Buffer in OpenCV

In modules/imgcodecs/src/grfmtpxm.cpp, the length of buffer AutoBuffer src is small than expected, which will cause copy buffer overflow later. If the image is from remote, may lead to remote code execution or denial of service. This affects OpenCV 3.3 corresponding to OpenCV-Python 3.3.0.9 and...

PYSEC-2026-717 Integer Overflow or Wraparound in OpenCV

In opencv/modules/imgcodecs/src/grfmtpxm.cpp, function PxMDecoder::readData has an integer overflow when calculate srcpitch. If the image is from remote, may lead to remote code execution or denial of service. This affects OpenCV 3.3 corresponding to OpenCV-Python 3.3.0.9 and earlier...

PYSEC-2026-713 Denial of Service in OpenCV

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...

PYSEC-2026-714 Out-of-bounds Write in OpenCV

OpenCV Open Source Computer Vision Library through 3.3 corresponding to OpenCV-Python and OpenCV-Contrib-Python 3.3.0.9 has an out-of-bounds write error in the FillColorRow8 function in utils.cpp when reading an image file by using cv::imread...