GHSA-5P2G-FCMC-QVQQ

Vulnerability from github – Published: 2026-06-10 15:31 – Updated: 2026-09-24 18:28
VLAI
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.

Severity
7.5 (High)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
8.7 (High)
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
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{
  "affected": [
    {
      "database_specific": {
        "last_known_affected_version_range": "\u003c= 2.0.2"
      },
      "package": {
        "ecosystem": "npm",
        "name": "image-size"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "1.2.0"
            },
            {
              "fixed": "2.0.3"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2025-71329"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-835"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2026-08-07T20:54:40Z",
    "nvd_published_at": "2026-06-10T14:16:30Z",
    "severity": "HIGH"
  },
  "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.",
  "id": "GHSA-5p2g-fcmc-qvqq",
  "modified": "2026-09-24T18:28:03Z",
  "published": "2026-06-10T15:31:30Z",
  "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"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    },
    {
      "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",
      "type": "CVSS_V4"
    }
  ],
  "summary": "image-size: JXL and HEIF parsers allow denial of service through infinite loops"
}



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