Bug 2540386 (CVE-2026-88367)

Summary: CVE-2026-88367 nanosvg: nanosvg: Denial of Service via crafted SVG document with large stroke width
Product: [Other] Security Response Reporter: OSIDB Bzimport <bzimport>
Component: vulnerabilityAssignee: Product Security <prodsec-ir-bot>
Status: NEW --- QA Contact:
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Priority: medium    
Version: unspecifiedKeywords: Security
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Hardware: All   
OS: Linux   
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A flaw was found in NanoSVG. By providing a specially crafted SVG document with an excessively large stroke width, an attacker can trigger an improper numeric conversion during stroke rasterization. This issue causes an unexpected process termination, leading to a Denial of Service (DoS).
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oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
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Bug Depends On: 2540655, 2540656, 2540657, 2540658, 2540660, 2540661, 2540659    
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Description OSIDB Bzimport 2026-09-24 16:37:11 UTC 
NanoSVG 239e102ec contains an incorrect numeric conversion vulnerability in nsvg__curveDivs() during SVG stroke rasterization. A specially crafted SVG document containing an extremely large stroke-width can cause floating-point rounding to produce a zero subdivision angle. The subsequent arc division yields infinity, which is converted to int without range validation, resulting in undefined behavior and process termination, leading to denial of service.