What’s Vulnerable › Vulnerabilities
CVE-2026-96396
- Severity: medium (CVSS 4.9 v3.1)
- Exploited in the wild: not listed in CISA KEV
- EPSS: 0.1% probability of exploitation in the next 30 days
- Public exploit or detection template: none known
- Published: 2026-10-09 · updated 2026-10-09
- Weakness: CWE-122
Description
The Affinity by Canva application for macOS before 3.3.1 (October 2026 release) did not safely calculate the size of an image buffer when generating QuickLook thumbnails and previews of Affinity document files, leading to an integer overflow and a heap-based buffer overflow. A threat actor could craft an Affinity document that, when displayed or previewed by a user in Finder, could corrupt heap memory and cause the thumbnail or preview extension to crash.
Affected products
- Canva Affinity: before 3.3.1 — fixed in 3.3.1
How to fix
Upgrade to a fixed version: Canva Affinity 3.3.1. Check the vendor advisory for mitigations.
References
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