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.
Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).
| Vendor | Product | Default status | Versions | ||||||
|---|---|---|---|---|---|---|---|---|---|
| canva | affinity | unaffected |
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Advisories
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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 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. | |
| First Time appeared |
Canva
Canva affinity |
|
| Weaknesses | CWE-122 | |
| 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: 2026-10-09T12:43:03.959Z
Reserved: 2026-09-23T01:54:28.750Z
Link: CVE-2026-96396
Vulnrichment
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NVD
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Redhat
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OpenCVE Enrichment
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Weaknesses