Canva Affinity up to 3.3.0 heap-based overflow

Summaryinfo

A vulnerability classified as problematic was found in Canva Affinity up to 3.3.0. This issue affects some unknown processing. Executing a manipulation can lead to heap-based overflow. This vulnerability is registered as CVE-2026-101094. The attack needs to be launched locally. No exploit is available. Upgrading the affected component is advised.

Detailsinfo

A vulnerability was found in Canva Affinity up to 3.3.0. It has been declared as problematic. This vulnerability affects an unknown function. The manipulation with an unknown input leads to a heap-based overflow vulnerability. The CWE definition for the vulnerability is CWE-122. A heap overflow condition is a buffer overflow, where the buffer that can be overwritten is allocated in the heap portion of memory, generally meaning that the buffer was allocated using a routine such as malloc(). As an impact it is known to affect confidentiality, integrity, and availability. CVE summarizes:

The Affinity by Canva application before 3.3.1 (October 2026 release) did not correctly handle incomplete UTF-8 character sequences when parsing text in Affinity document files, leading to a heap buffer over-read. A threat actor could craft an Affinity document that, when opened by a user in Affinity, could disclose the contents of adjacent heap memory in the document's text or result in an application crash.

The advisory is available at trust.canva.com. This vulnerability was named CVE-2026-101094 since 09/28/2026. The exploitation appears to be easy. Local access is required to approach this attack. Successful exploitation requires user interaction by the victim. The technical details are unknown and an exploit is not available.

Upgrading to version 3.3.1 eliminates this vulnerability.

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Productinfo

Vendor

• Canva

Name

• Affinity

Version

• 3.0
• 3.1
• 3.2
• 3.3.0

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CPE 2.2info

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