CVE-2026-46714 Misskey: Denial of Service via Uncontrolled Recursion in Theme Compilation
An attacker can cause the Misskey web client to crash or slow down by applying a malformed theme, requiring an upgrade to fix.
- 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-2026-46714?
CVE-2026-46714 is a medium-severity denial of service vulnerability in misskey-dev misskey, published on 3 Aug 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
Misskey is an open source, federated social media platform. IVersions 8.63.0 and later, but prior to 2026.5.4, contain a vulnerability that can cause the Misskey web client to slow down or crash when it applies a malformed theme. This issue has been fixed in version 2026.5.4.
Weakness: CWE-674
Which versions are affected by CVE-2026-46714?
How do I fix CVE-2026-46714?
No fix has been published for CVE-2026-46714 yet. Limit exposure of the affected software until one is available.
Upgrade, then put limits on request size, rate and nesting depth so one client cannot exhaust the service. More about Denial of service.
Is CVE-2026-46714 being exploited?
There is no known exploitation of CVE-2026-46714 in the wild and no public exploit code.
Sources
Also known as GHSA-wmhf-m93m-rgmj.