TI-2026-56261 Aliases CVE-2026-81546 GHSA-fq87-2rvp-5478

Stack-based buffer overflow in Canva Affinity

LOW 35CWE-121Published 2026-09-17 · Updated 2026-09-17

Key facts

Attack vector: Local
Privileges required: None
User interaction: Required
Attack complexity: High
Impact type: Code execution
Confidentiality · integrity · availability: High · High · High
Fix status: Fixed

Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-121 and the CVSS impact.

Summary

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.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV

EPSS 0.00147 3rd percentileScored 2026-11-07

Fix Fixed Affinity (Canva): 3.3.0

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation: None
Automatable: No
Technical impact: Total

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

Vendor	Product	Affected versions	Fixed in	Status	Source
Canva	Affinity	before 3.3.0	3.3.0	Patch available	CNA

Affinity VendorCanva Affected before 3.3.0 Fixed in 3.3.0 Patch available CNA

CPE names Threatist (inferred) · 1

Inferred from how NVD named this product before; not given by a source.

CPE	Versions	Role	Vendor
cpe:2.3:a:canva:affinity::::::::	—	—	Canva

cpe:2.3:a:canva:affinity:*:*:*:*:*:*:*:* Versions — — ·Canva

Remediation

Fix · CNA Affinity (Canva) Fixed in 3.3.0

Timeline

2026-10-02 Threatist record created from CVE-2026-81546
2026-10-03 Alias added: GHSA-fq87-2rvp-5478

References

Other 1

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

TI-2026-82266 Ortto WordPress plugin missing authentication on config updates CVSS 3.1HIGH 8.6
TI-2026-58447 Improper verification of communication channel in Canva CVSS 3.1CRITICAL 9.6
TI-2026-58453 The Canva Android App before 2.376.0 did not restrict the headers returned to an external… CVSS 3.1HIGH 8.8
TI-2025-40808 Type confusion in Canva Affinity CVSS 3.1HIGH 7.8
TI-2025-39740 Out-of-bounds write in Canva Affinity CVSS 3.1HIGH 7.8
TI-2026-61753 The Canva Mobile App for HarmonyOS before v1.15.1 did not restrict the headers returned… CVSS 3.1HIGH 7.1

See all 35 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences