CVE-2026-96395
Affinity for macOS Heap-based Out-of-Bounds Read
Description
The Affinity by Canva app for macOS before 3.3.1 (October 2026 release) did not perform adequate bounds checking 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, including memory addresses, in the rendered thumbnail or preview image.
INFO
Published Date :
Oct. 9, 2026, 1:17 p.m.
Last Modified :
Oct. 9, 2026, 1:17 p.m.
Remotely Exploit :
No
Source :
61adb53e-e4b3-47f7-8a93-4717c9e77dc6
CVSS Scores
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS 3.1 | LOW | 61adb53e-e4b3-47f7-8a93-4717c9e77dc6 | ||||
| CVSS 3.1 | LOW | MITRE-CVE |
Solution
- Update Affinity by Canva for macOS to 3.3.1 or newer.
- Apply vendor patches when available.
- Avoid previewing untrusted files.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2026-96395.
| URL | Resource |
|---|---|
| https://trust.canva.com?tcuUid=1998378a-9134-47e9-b761-7a49d5fd6bfb |
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2026-96395 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2026-96395
weaknesses.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2026-96395 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2026-96395 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
New CVE Received by 61adb53e-e4b3-47f7-8a93-4717c9e77dc6
Oct. 09, 2026
Action Type Old Value New Value Added Description The Affinity by Canva app for macOS before 3.3.1 (October 2026 release) did not perform adequate bounds checking 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, including memory addresses, in the rendered thumbnail or preview image. Added CVSS V3.1 AV:L/AC:H/PR:N/UI:R/S:U/C:L/I:N/A:L Added CWE CWE-125 Added Affected New affected value received. <a href="https://github.com/CVEProject/cvelistV5/blob/main/cves/2026/96xxx/CVE-2026-96395.json">CVE-2026-96395</a> Added Reference https://trust.canva.com?tcuUid=1998378a-9134-47e9-b761-7a49d5fd6bfb