CVE-2026-81546 — HIGH (7.7)

Vulnerability 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 Score

7.7

HIGH

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

Attack Vector

LOCAL

Attack Complexity

HIGH

Privileges Required

NONE

User Interaction

REQUIRED

Scope

CHANGED

Confidentiality

HIGH

Integrity

HIGH

Availability

HIGH

Related Weaknesses (CWE)

CWE-121

References

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

FAQ

What is CVE-2026-81546?

CVE-2026-81546 is a vulnerability with a CVSS score of 7.7 (HIGH). 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...

How severe is CVE-2026-81546?

CVE-2026-81546 has been rated HIGH with a CVSS base score of 7.7/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2026-81546?

Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.