CVE-2026-90860 Information disclosure in Canva
Attackers controlling a privileged WebView can access user session headers, leading to potential account takeover in the Canva HarmonyOS app.
- 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-2026-90860?
CVE-2026-90860 is a high-severity vulnerability in Canva, published on 21 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
The Canva Mobile App for HarmonyOS before v1.15.1 did not restrict the headers returned to an external origin running in a privileged WebView. A threat actor with control of the WebView could access a user’s session.
Weakness: CWE-212
Which versions are affected by CVE-2026-90860?
How do I fix CVE-2026-90860?
No fix has been published for CVE-2026-90860 yet. Limit exposure of the affected software until one is available.
Is CVE-2026-90860 being exploited?
There is no known exploitation of CVE-2026-90860 in the wild and no public exploit code.
Sources
Also known as GHSA-mxw2-g58m-hfwm.