{"id":"GHSA-5p2g-fcmc-qvqq","summary":"image-size: JXL and HEIF parsers allow denial of service through infinite loops","details":"image-size through 2.0.2 contains a denial of service vulnerability that allows remote attackers to permanently block the Node.js event loop by supplying a specially crafted image buffer with a zero-valued size field in a recognized box-type. Attackers can trigger an infinite loop in the JXL or HEIF image parsers by providing a crafted image containing a box with a size of zero, causing the offset to never advance and permanently hanging the application.","aliases":["CVE-2025-71329"],"modified":"2026-09-24T18:45:10.915244487Z","published":"2026-06-10T15:31:30Z","database_specific":{"github_reviewed":true,"github_reviewed_at":"2026-08-07T20:54:40Z","nvd_published_at":"2026-06-10T14:16:30Z","cwe_ids":["CWE-835"],"severity":"HIGH"},"references":[{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2025-71329"},{"type":"WEB","url":"https://codeberg.org/image-size/image-size/commit/e6e83a5578961de81f6d5834d90fb7430d8f29a5"},{"type":"PACKAGE","url":"https://github.com/image-size/image-size"},{"type":"WEB","url":"https://joshua.hu/image-size-infinite-loop-dos-vulnerabilities"},{"type":"WEB","url":"https://web.archive.org/web/20260224152152/https://github.com/image-size/image-size/pull/439"},{"type":"WEB","url":"https://www.vulncheck.com/advisories/image-size-denial-of-service-via-infinite-loop-in-jxl-heif-parser"}],"affected":[{"package":{"name":"image-size","ecosystem":"npm","purl":"pkg:npm/image-size"},"ranges":[{"type":"SEMVER","events":[{"introduced":"1.2.0"},{"fixed":"2.0.3"}]}],"database_specific":{"last_known_affected_version_range":"\u003c= 2.0.2","source":"https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/06/GHSA-5p2g-fcmc-qvqq/GHSA-5p2g-fcmc-qvqq.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"},{"type":"CVSS_V4","score":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N"}]}