{"affected":[{"defaultStatus":"unaffected","ecosystem":"npm","packageName":"image-size","product":"image-size","source":"CNA: VulnCheck","vendor":"image-size","versions":[{"lessThanOrEqual":"1.2.1","status":"affected","version":"1.1.0","versionType":"semver"},{"lessThanOrEqual":"2.0.2","status":"affected","version":"2.0.0","versionType":"semver"}]}],"cveId":"CVE-2025-71329","cwes":["CWE-835"],"description":"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.","epss":{"date":"2026-11-08","percentile":0.37508,"score":0.0043},"exploits":[{"kind":"exploit","source":"CNA: VulnCheck","url":"https://joshua.hu/image-size-infinite-loop-dos-vulnerabilities"}],"kev":null,"metrics":[{"score":8.7,"severity":"high","source":"CNA: VulnCheck","vector":"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","version":"4.0"},{"score":7.5,"severity":"high","source":"CNA: VulnCheck","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","version":"3.1"}],"modifiedAt":1794146426865,"publishedAt":1781096670380,"references":[{"source":"CNA: VulnCheck","tags":["technical-description","exploit"],"url":"https://joshua.hu/image-size-infinite-loop-dos-vulnerabilities"},{"source":"CNA: VulnCheck","tags":["issue-tracking","patch"],"url":"https://web.archive.org/web/20260224152152/https://github.com/image-size/image-size/pull/439"},{"source":"CNA: VulnCheck","tags":["third-party-advisory"],"url":"https://www.vulncheck.com/advisories/image-size-denial-of-service-via-infinite-loop-in-jxl-heif-parser"}],"remediation":[{"kind":"fix","source":"CNA: VulnCheck","text":"The reporting source identifies this reference as a patch. Check the advisory for affected versions and supported release branches.","url":"https://web.archive.org/web/20260224152152/https://github.com/image-size/image-size/pull/439"}],"revision":"57814058a0643d83896aa6d84e7675de30d6933ae6f2d7b7e31486ce8c13ccb1","sources":[{"modifiedAt":1794146426865,"name":"CNA: VulnCheck","retrievedAt":1794146981505,"url":"https://www.cve.org/CVERecord?id=CVE-2025-71329"},{"modifiedAt":null,"name":"FIRST EPSS","retrievedAt":1794150587795,"url":"https://api.first.org/data/v1/epss?cve=CVE-2025-71329"}],"ssvc":{"assessedAt":1781102756403,"automatable":"yes","exploitation":"poc","source":"ADP: CISA-ADP","technicalImpact":"partial"},"status":"published","title":"image-size 2.0.2 Denial of Service via Infinite Loop in JXL/HEIF Parser","updatedAt":1794150587795}