CVE-2026-96394 Information disclosure in affinity
Crafted Affinity documents can disclose heap memory or crash the macOS QuickLook preview extension when viewed in Finder.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Local or same network only
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-96394?
CVE-2026-96394 is a low-severity vulnerability in canva affinity, published on 9 Oct 2026. It can only be exploited from the same machine or local network, with no action from the victim.
Official description
The Affinity by Canva application for macOS before 3.3.1 (October 2026 release) did not validate image dimensions against the size of the pixel data when generating QuickLook thumbnails and previews of Affinity document files, leading to an out-of-bounds heap read. A threat actor could craft an Affinity document that, when displayed or previewed by a user in Finder, could disclose the contents of adjacent heap memory in the rendered thumbnail or preview image, or cause the thumbnail or preview extension to crash.
Weakness: CWE-126
Which versions are affected by CVE-2026-96394?
How do I fix CVE-2026-96394?
No fix has been published for CVE-2026-96394 yet. Limit exposure of the affected software until one is available.
Is CVE-2026-96394 being exploited?
There is no known exploitation of CVE-2026-96394 in the wild and no public exploit code.
Sources
Also known as GHSA-5hh5-7xcc-m4cx.