CVE-2026-101094: CWE-126 Buffer Over-read in canva affinity
Description
Affinity by Canva versions before 3.3.1 contain a heap buffer over-read vulnerability due to improper handling of incomplete UTF-8 sequences in document text parsing. This flaw can cause information disclosure of adjacent heap memory or application crashes when opening crafted documents. The vulnerability has a low CVSS score of 3.6 and requires local attack vector with high attack complexity and user interaction.
CVSS v3.1
Score 3.6low
Affected software
canva
affinity
Run on your own infrastructure? Check whether these packages are installed with threat-finder — our free open-source scanner.
Weaknesses
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
CVE-2026-101094 is a heap buffer over-read vulnerability in Affinity by Canva prior to version 3.3.1. The application does not correctly handle incomplete UTF-8 character sequences when parsing text in Affinity document files. An attacker can craft a malicious document that, when opened, may cause the application to read beyond the intended buffer, potentially disclosing adjacent heap memory contents or causing a crash. The vulnerability has a CVSS 3.1 base score of 3.6, indicating low severity, with an attack vector requiring local access, high complexity, no privileges, and user interaction.
Potential Impact
The vulnerability allows a local attacker to cause information disclosure of adjacent heap memory or an application crash by opening a specially crafted Affinity document. The impact on confidentiality is limited (partial disclosure), integrity is not affected, and availability impact is low due to possible crashes.
Mitigation Recommendations
A fix is available in Affinity by Canva version 3.3.1 released in October 2026. Users should upgrade to version 3.3.1 or later to remediate this vulnerability. No other mitigation guidance is provided.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- Canva
- Date Reserved
- 2026-09-28T01:31:06.889Z
- Cvss Version
- 3.1
- State
- PUBLISHED
Threat ID: 6ac8e2bf2cdf04f6565578eb
Added to database: 10/09/2026, 12:49:03 UTC
Last enriched: 10/09/2026, 13:03:36 UTC
Last updated: 10/09/2026, 13:28:09 UTC
Views: 5
Community Reviews
0 reviewsCrowdsource mitigation strategies, share intel context, and vote on the most helpful responses. Sign in to add your voice and help keep defenders ahead.
Want to contribute mitigation steps or threat intel context? Sign in or create an account to join the community discussion.
Actions
Updates to AI analysis require Pro Console access. Upgrade inside Console → Billing.
External Links
Need more coverage?
Upgrade to Pro Console for AI refresh and higher limits.
For incident response and remediation, OffSeq services can help resolve threats faster.
Latest Threats
Check if your credentials are on the dark web
Instant breach scanning across billions of leaked records. Free tier available.