Medium severity · published Aug 3, 2026
CVE-2026-46714
Misskey: Denial of Service via Uncontrolled Recursion in Theme Compilation
5.1
CVSS
0.4%
EPSS
No
On KEV
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.
Exploitation
Is it being used?
Exploit prediction (EPSS)0.4% · higher than 38% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
MI
misskey · misskey-dev
>= 8.63.0, < 2026.5.4 · source: vendor
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-46714
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-46714
github.com
https://github.com/misskey-dev/misskey/releases/tag/2026.5.4
github.com
https://github.com/misskey-dev/misskey/security/advisories/GHSA-wmhf-m93m-rgmj
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