ThorVG: Null pointer dereference in SVG loader causes crash via 6-byte malformed input
Priority MEDIUM 53CWE-476Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- Required
- Attack complexity
- Low
- Impact type
- Denial of service
- Confidentiality · integrity · availability
- None · None · Low
- Fix status
- Fixed
Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-476.
Summary
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.
Why it matters now
Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.00235 14th percentileScored 2026-11-07
Fix Fixed thorvg (thorvg): 1.0.5
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- Poc
- Automatable
- No
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
Remediation
- Fix · CNA thorvg (thorvg) Fixed in 1.0.5
Vendor assessments
Timeline
- 2026-10-02 Threatist record created from CVE-2026-45729
References
More thorvg vulnerabilities
- TI-2026-81578 Out-of-bounds read in ThorVG SFNT/TTF font loader CVSS 3.1MEDIUM 4.3
Sources
- CVE-2026-45729 · CVE Program
- CVE-2026-45729 · NVD
- FIRST EPSS
- CVE-2026-45729 · Red Hat security data · CC BY 4.0
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