CVE-2026-45729

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

4.3 MediumPublic exploitFix available

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.

Attack profile

How easy it is to exploit

Attack vector: Network
Complexity: Low
Privileges needed: None
User interaction: Required

What an attacker can affect

Confidentiality: None
Integrity: None
Availability: Low

Exploit likelihood

0.24%Up 0.2 points since Jun 2, 2026

What each source reports

CVE List Score used 4.3

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

Record: CVE-2026-45729
CVSS 3.1: 4.3 MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L
Weakness: CWE-476
Updated: 2026-11-02

EUVDEUVD-2026-33722 4.3

Record: EUVD-2026-33722
CVSS 3.1: 4.3 MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L
Updated: 2026-11-02

NVD 4.3

Record: CVE-2026-45729
CVSS 3.1: 4.3 MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L
Weakness: CWE-476
Updated: 2026-11-02

OSV 4.3

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

Record: CVE-2026-45729
CVSS 3.1: 4.3 MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L
Weakness: CWE-476
Updated: 2026-11-02

OSVDEBIAN-CVE-2026-45729 4.3

Record: DEBIAN-CVE-2026-45729
CVSS 3.1: 4.3 MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L
Updated: 2026-11-02

OSVUBUNTU-CVE-2026-45729 4.3

Record: UBUNTU-CVE-2026-45729
CVSS 3.1: 4.3 MediumCVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L
Updated: 2026-11-02

Affected products

thorvg

Affected packages

Affected packages
Package	Affected	Fixed
`thorvg` Debian:14	before 1.0.6+dfsg-1, plus listed versions 1.0.2+dfsg-11.0.3+dfsg-11.0.3+dfsg-21.0.3+dfsg-31.0.3+dfsg2-11.0.3+dfsg2-21.0.3+dfsg2-31.0.3+dfsg2-4	1.0.6+dfsg-1
`thorvg` Ubuntu:26.10	All versions, plus listed versions 1.0.3+dfsg2-41.0.6+dfsg-1	None known

Public exploits

Links only. Every CVE stores no exploit code.

Public exploits
Source	Link	Date
PoC in GitHub	yeahhbean/CVE-2026-45729	2026-07-22

History

History
Recorded	Changed	Sources
Nov 2, 2026	first indexed	CVE List, EUVD, NVD, OSV, PoC in GitHub

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2026-45729 is a medium vulnerability (CVSS 4.3) in Thorvg, published June 1, 2026. Public exploit code exists. EPSS puts the chance of exploitation in the next 30 days at 0.24%, the 14th percentile. Fixed in thorvg 1.0.6+dfsg-1.