{"id":"GHSA-9g8h-pjm4-q92p","summary":"Out-of-bounds Write in OpenCV.","details":"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.","aliases":["CVE-2018-5268","PYSEC-2026-2814","PYSEC-2026-705"],"modified":"2026-08-24T00:34:18.208038572Z","published":"2021-10-12T22:23:41Z","database_specific":{"github_reviewed_at":"2021-10-07T19:55:52Z","nvd_published_at":"2018-01-08T05:29:00Z","cwe_ids":["CWE-787"],"severity":"MODERATE","github_reviewed":true},"references":[{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2018-5268"},{"type":"WEB","url":"https://github.com/opencv/opencv/issues/10541"},{"type":"WEB","url":"https://github.com/opencv/opencv/pull/10566/commits/435a3e337bd9d4e11af61cf8b8afca067bf1a8aa"},{"type":"PACKAGE","url":"https://github.com/opencv/opencv-python"},{"type":"WEB","url":"https://lists.debian.org/debian-lts-announce/2018/04/msg00019.html"},{"type":"WEB","url":"https://lists.debian.org/debian-lts-announce/2018/07/msg00030.html"},{"type":"WEB","url":"https://lists.debian.org/debian-lts-announce/2021/10/msg00028.html"},{"type":"WEB","url":"http://www.securityfocus.com/bid/106945"}],"affected":[{"package":{"name":"opencv-python","ecosystem":"PyPI","purl":"pkg:pypi/opencv-python"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"3.4.1.15"}]}],"versions":["3.4.0.14"],"database_specific":{"last_known_affected_version_range":"\u003c= 3.3.1.11","source":"https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2021/10/GHSA-9g8h-pjm4-q92p/GHSA-9g8h-pjm4-q92p.json"}},{"package":{"name":"opencv-contrib-python","ecosystem":"PyPI","purl":"pkg:pypi/opencv-contrib-python"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"3.4.1.15"}]}],"database_specific":{"source":"https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2021/10/GHSA-9g8h-pjm4-q92p/GHSA-9g8h-pjm4-q92p.json","last_known_affected_version_range":"\u003c= 3.3.1.11"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V3","score":"CVSS:3.0/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H"}]}