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.
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Affected Vendors & Products
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Fixes
Solution
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Workaround
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References
History
Fri, 09 Oct 2026 12:45:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| 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. | |
| First Time appeared |
Canva
Canva affinity |
|
| Weaknesses | CWE-126 | |
| CPEs | cpe:2.3:a:canva:affinity:*:*:*:*:*:macos:*:* | |
| Vendors & Products |
Canva
Canva affinity |
|
| References |
| |
| Metrics |
cvssV3_1
|
Projects
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MITRE
Status: PUBLISHED
Assigner: Canva
Published:
Updated: 2026-10-09T12:38:38.210Z
Reserved: 2026-09-23T01:53:44.051Z
Link: CVE-2026-96394
Vulnrichment
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NVD
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Redhat
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OpenCVE Enrichment
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Weaknesses