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CVE-2025-71330 is an infinite-loop denial-of-service vulnerability in the ICNS parser of the image-size npm package through version 2.0.2. A crafted ICNS buffer with valid ICNS magic bytes and an entry length of zero causes the parser to repeatedly evaluate its parsing loop without advancing its offset. The resulting non-terminating loop blocks the Node.js event loop.
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No valid public exploits. Mallory filtered out 1 candidate as fakes, detection scripts, or README-only repos.
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A denial-of-service vulnerability in the ICNS parser of npm image-size through version 2.0.2. A crafted ICNS buffer with valid magic bytes and a zero-valued entry-length field causes the parser's offset not to advance, resulting in an infinite loop that permanently blocks the Node.js event loop.
A denial-of-service vulnerability in image-size through 2.0.2 where a malformed ICNS image buffer with a zero-valued entry length can trigger an infinite loop in the ICNS parser and permanently block the Node.js event loop.
Query your assets running an affected version, and investigate the blast radius.
Every observed campaign linking this CVE to a named adversary.
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Cross-references every affected SKU, including bundled OEM variants.
Community discussion across Reddit, Mastodon, and other social sources.