Vulnerability · Published Jun 1, 2026 · Assigned by GitHub_M

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

Medium 4.3

In plain English

A medium-severity null pointer dereference in thorvg from thorvg. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.2% (higher than 15% of all known vulnerabilities). Ready-made attack tooling exists: public proof-of-concept code. Fixed versions are available - upgrade the affected package.

Severity (CVSS 3.1)4.3Medium

Exploit odds (30 days)0.2%top 85.4% of all CVEs

Exploited in the wildNo reportsCISA SSVC: poc

Attack tooling1Public PoC

Official 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 packages & fixed versions

Ecosystem	Package	Fixed in	Advisory
Debian:14	thorvg	1.0.6+dfsg-1	DEBIAN-CVE-2026-45729
Ubuntu:26.10	thorvg	no fix listed	UBUNTU-CVE-2026-45729

Affected products (as reported)

Vendor	Product	Versions
thorvg	thorvg	< 1.0.5

Weakness: CWE-476 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L

References

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