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Vulnerability record · CVE-2026-81546 · published 17 September 2026

CVE-2026-81546: Stack-based buffer overflow vulnerability

The Affinity by Canva application before 3.3.0 (September 2026 release) did not perform adequate bounds checking when parsing Affinity document files leading to a stack-based buffer overflow. A threat actor could craft a Affinity document that when opened by a user in Affinity could result in arbitrary code execution.

7.7 CVSS 3.1 High EPSS 0.15% · top 96.7% CWE-121 · Stack-based buffer overflow Deferred
7.7CVSS 3.1 base score
0.15%EPSS exploitation probability, 30 days
NoNot in CISA KEV
0Affected product versions listed by NVD
1References
18 Sep 2026Last modified by NVD

Description

The Affinity by Canva application before 3.3.0 (September 2026 release) did not perform adequate bounds checking when parsing Affinity document files leading to a stack-based buffer overflow. A threat actor could craft a Affinity document that when opened by a user in Affinity could result in arbitrary code execution.

CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:C/C:H/I:H/A:H

References

LinkTags
https://trust.canva.com?tcuUid=43596908-8a36-4a18-b2e7-5c99b67ab38a

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Source: NIST National Vulnerability Database (record CVE-2026-81546), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.