What is CVE-2026-96394?

CVE-2026-96394 is a low-severity vulnerability in Canva Affinity, classified under Buffer Over-read. CVSS score: 2.9/10. Published 2026-10-09.

How severe is CVE-2026-96394?

Low severity. CVSS v3 base score is 2.9 out of 10.

Vulnerability in Canva Affinity

CVE-2026-96394

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.

Published 2026-10-09 · last modified 2026-10-09.

CVSS v3 metric

CVSS v3 base score 2.9 (Low). Vector: CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:N.

EPSS exploit prediction

No EPSS score from FIRST.org yet. New CVEs usually get one within a few days; no score means no signal yet, not low risk. How EPSS works.

Affected products

Canva Affinity

Weakness classification (CWE)

CWE-126 — Buffer Over-read

References

61adb53e-e4b3-47f7-8a93-4717c9e77dc6

Frequently asked questions

What is CVE-2026-96394?: CVE-2026-96394 is a low-severity vulnerability in Canva Affinity, classified under Buffer Over-read. CVSS score: 2.9/10. Published 2026-10-09.
How severe is CVE-2026-96394?: Low severity. CVSS v3 base score is 2.9 out of 10.