# CVE-2026-45729: ThorVG null pointer dereference in SvgLoader Source: https://junglewise.ai/threats/cve-2026-45729-thorvg-null-pointer-dereference-in-svgloader Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats Published: 2026-06-01. Updated: 2026-06-01 License: CC BY 4.0 with a link back CVE-2026-45729 · Severity: medium · CVSS 4.3 · Published 2026-06-01 ThorVG is a vector graphics engine used by platforms like Samsung Tizen OS and the Godot Engine to render images. A vulnerability in how it handles SVG files allows an attacker to crash any application using the library by providing a specially crafted, 6-byte malformed image file. This results in a denial-of-service (DoS) where the application stops functioning, though it does not appear to lead to data theft or unauthorized access. Technologies: [ThorVG](https://junglewise.ai/threats/technologies/thorvg). Vendors: [ThorVG](https://junglewise.ai/threats/vendors/thorvg). ## Quick answers **Is CVE-2026-45729 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-45729 being exploited in the wild. **How severe is CVE-2026-45729?** Medium severity, with a CVSS score of 4.3, published 1 June 2026. **Which products and versions are affected?** ThorVG < 1.0.5. **Is there a fix for CVE-2026-45729?** A patch was published on 2026-05-12: Fix committed to main branch Junglewise finds every place you run it, drafts the upgrade and applies it once you approve. **How is CVE-2026-45729 attacked?** It is attacked over the network, in a software library. **Am I affected by CVE-2026-45729?** Check whether you run ThorVG at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you. ## Technical details A NULL pointer dereference exists in the `SvgLoader::run()` function within `src/loaders/svg/tvgSvgLoader.cpp`. The vulnerability occurs because the engine fails to validate the return value of `svgSceneBuild()` when processing malformed SVG data. If `svgSceneBuild()` returns a null pointer due to parsing failure, the subsequent call to `root->ref()` triggers a segmentation fault. An attacker can exploit this by passing a minimal 6-byte malformed SVG string (e.g., `