CyberRota Analysis
AI-GeneratedThe vulnerability affects the probe-image-size library, specifically in its synchronous and streaming SVG parsing methods, which can lead to denial of service by blocking the Node.js event loop due to excessive CPU usage when processing attacker-controlled input. This issue can be exploited through crafted SVG data, making it critical for developers and organizations using this library to prioritize upgrading to version 7.4.0 or later to mitigate the risk of service disruption. Users of applications relying on this library should assess their exposure and implement the necessary updates promptly.
Public Exploit Signal
A public exploit, PoC, GitHub repository or Metasploit reference was detected for this CVE.
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Original NVD Description
probe-image-size gets image dimensions without downloading the entire file. Prior to 7.4.0, lib/parse_sync/svg.js and lib/parse_stream/svg.js use the searching regular expression /<[-_.:a-zA-Z0-9][^>]*>/, which repeatedly scans to the end of input when attacker-controlled data contains many less-than characters without a closing greater-than character. The synchronous parser converts and scans the full supplied buffer without an input cap, while the streaming parser reparses the complete accumulated SVG prefix for every received chunk. The probe.sync(), probe(stream), and probe(url) entry points can therefore block the Node.js event loop at full CPU, and attacker-controlled chunking can amplify the streaming cost. This issue is fixed in version 7.4.0.