{"id":"CVE-2025-71329","title":"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-…","summary":"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-…","severity":"high","cvss":7.5,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","cwe":["CWE-835"],"vendor":"image-size","product":"image-size","affected":["image-size >= 1.1.0, <= 1.2.1","image-size >= 2.0.0, <= 2.0.2"],"patched":["image-size 2.0.3"],"published":"2026-06-10","updated":"2026-10-12","sourceUpdated":"2026-10-12T22:10:00.247","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2025-71329","references":[{"url":"https://joshua.hu/image-size-infinite-loop-dos-vulnerabilities","label":"disclosure@vulncheck.com"},{"url":"https://web.archive.org/web/20260224152152/https://github.com/image-size/image-size/pull/439","label":"disclosure@vulncheck.com"},{"url":"https://www.vulncheck.com/advisories/image-size-denial-of-service-via-infinite-loop-in-jxl-heif-parser","label":"disclosure@vulncheck.com"},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2025-71329"},{"url":"https://codeberg.org/image-size/image-size/commit/e6e83a5578961de81f6d5834d90fb7430d8f29a5"},{"url":"https://github.com/advisories/GHSA-5p2g-fcmc-qvqq"}],"tags":["nvd","exploit-available","ghsa","npm"],"epss":0.0043,"epssPercentile":0.37095,"exploits":{"github":1,"githubRepos":["https://github.com/lcf2212dev/image-size-next"],"checkedAt":"2026-10-27T16:51:41.092Z"},"exploitAvailable":true,"aliases":["GHSA-5p2g-fcmc-qvqq"],"ecosystem":"npm","ingestedAt":"2026-09-24T18:49:36.713Z","slug":"CVE-2025-71329","body":"## Overview\n\nimage-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.\n\n## Affected\n\n- `image-size >= 1.1.0, <= 1.2.1`\n- `image-size >= 2.0.0, <= 2.0.2`\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.\n\n## Package advisory (CVE-2025-71329)\n\nAffected packages:\n\n- `image-size >= 1.2.0, <= 2.0.2`\n\nPatched in:\n\n- `image-size 2.0.3`\n\nSource: https://github.com/advisories/GHSA-5p2g-fcmc-qvqq","depth":"midnight","depthScore":53,"depthScoreParts":{"impact":41.3,"likelihood":0.1,"exploitation":12,"ransomware":0},"changes":[]}