CVE Catalog

CVE-2026-104861

HighCVSS 7.5
Published: Updated: Translated: NVD NIST

Exploitation Probability (EPSS)

Low risk
0.43%

35th percentile - higher than 35% of all known CVEs

Summary

probe-image-size before 7.4.0 contains a ReDoS vulnerability in the SVG parsers (lib/parse_sync/svg.js and lib/parse_stream/svg.js). The searching regular expression /<[-_.:a-zA-Z0-9][^>]*>/ 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 block the Node.js event loop at full CPU. Fixed in version 7.4.0.

Risk Assessment

The vulnerability can lead to denial of service (DoS) by blocking the Node.js event loop, potentially affecting the availability of applications using this library.

Recommendation

Upgrade probe-image-size to version 7.4.0 or later. Additionally, limit the size of processed input data and apply timeouts.

Related vulnerabilities

Original NVD description (English source)

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.

Vulnerability data from NVD (NIST) · CISA KEV · EPSS