CVE-2026-88366
High
Description
NanoSVG commit 239e102ec contains an incorrect numeric conversion vulnerability in nsvg__pathArcTo() when parsing SVG arc commands. A specially crafted SVG document containing extreme arc radius values can cause intermediate arc calculations to produce a NaN delta angle. The function subsequently converts this NaN value to int without validating that it is finite and representable, resulting in undefined behavior and process termination, leading to denial of service.
SeverityHigh
CVSS7.5
Exploit probability—
ProductNanoSVG
PublishedSep 24, 2026
First seenSep 24, 2026
Weakness typeCWE-681CWE-681
How to fix
Sources list no fixed version or patch link for this vulnerability.
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| NanoSVG | No range specified | — |
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