Not a U.S. government website. NDD is an independent vulnerability database by Volerion and is not affiliated with or endorsed by NIST or NVD.
VOLERION
Volerion Security Research

NOT DEFERRED DATABASE

VULNERABILITIES

CVE-2026-96396 Details

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.

Metrics

CVSS 3.x Severity and Vector Strings:

CNA: CanvaCVSS-B:4.9 MEDIUMVector:CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:L

References to Advisories, Solutions, and Tools

By selecting these links, you will be leaving this site. These are references gathered from the official CVE record and are not endorsed by Volerion.

URLSource(s)Tag(s)
https://trust.canva.com?tcuUid=1998378a-9134-47e9-b761-7a49d5fd6bfb Canva

Weakness Enumeration

CWE-IDCWE NameSource
CWE-122Heap-based Buffer OverflowCanva

Affected Products

No affected product data is available for this CVE.

Change History

2 change records found show changes

QUICK INFO

CVE Dictionary Entry:
CVE-2026-96396
NVD Published Date:
Oct 9, 2026
NVD Last Modified:
Oct 9, 2026
Source:
Canva
CVE-2026-96396 Details - Not Deferred