CVE-2026-92839 Cross-site scripting in Canva
An attacker can execute arbitrary same-origin content in Canva Desktop via double decoding in the deeplink handler, potentially leading to session hijacking.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- None listed
What is CVE-2026-92839?
CVE-2026-92839 is a medium-severity cross-site scripting vulnerability in Canva, published on 17 Sep 2026. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.
Official description
Canva Desktop before v1.125.0 performed double decoding in the deeplink handler. A threat actor could cause the application to load arbitrary same-origin content under the user’s session.
Weakness: CWE-174
Which versions are affected by CVE-2026-92839?
How do I fix CVE-2026-92839?
No fix has been published for CVE-2026-92839 yet. Limit exposure of the affected software until one is available.
Escape output for the context it lands in and set a strict Content Security Policy. Upgrading the affected component is the real fix. More about Cross-site scripting.
Is CVE-2026-92839 being exploited?
There is no known exploitation of CVE-2026-92839 in the wild and no public exploit code.
Sources
Also known as GHSA-h8gp-q3m8-2gvr.