CVE-2026-45729: ThorVG: Null pointer dereference in SVG loader causes crash via 6-byte malformed input

Severity: medium (CVSS 4.3 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.2% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2026-06-01 · updated 2026-07-22
Weakness: CWE-476

Description

Thor Vector Graphics (ThorVG) is a production-ready vector graphics engine. Prior to version 1.0.5, a null pointer dereference in SvgLoader::run() allows any caller that passes untrusted SVG data to Picture::load() to crash the process with a 6-byte payload. This issue has been patched in version 1.0.5.

Affected products

thorvg: before 1.0.5

References

https://github.com/thorvg/thorvg/commit/159f44fd5e3d2eea1b3a70689a894e657e2bb079
https://github.com/thorvg/thorvg/pull/4387
https://github.com/thorvg/thorvg/releases/tag/v1.0.5
https://github.com/thorvg/thorvg/security/advisories/GHSA-f863-8ghq-7h64
https://github.com/thorvg/thorvg/security/advisories/GHSA-f863-8ghq-7h64

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