Vulnerability · Published Sep 17, 2026 · Assigned by Canva
CVE-2026-81546
High 7.7
In plain English
A high-severity stack buffer overflow in Affinity from Canva. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.1% (higher than 4% of all known vulnerabilities).
Severity (CVSS 3.1)7.7High
Exploit odds (30 days)0.1%top 96.0% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official 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.
Affected products (as reported)
Weakness: CWE-121 · Vector: CVSS:3.1/AV:L/AC:H/PR:N/UI:R/S:C/C:H/I:H/A:H