CVE-2026-104816
Misskey is an open source, federated social media platform
- Risk score
- 66/100
- CVSS
- 8.5 v4.0
- Exploit chance (30 days)
- 0.6%
- Published
- 13 Oct 2026
Open in the live forecast Today's forecast
What to know
- What it is
- Misskey is an open source, federated social media platform. From 12.0.0 until 2026.7.0, the RSS components display feed item links from configured feeds without verifying their URL schemes. Missing URL scheme verification allows an attacker who controls feed content to provide an unsafe-scheme link that causes script …
- Affected
- See advisory
- Fix
- Upgrade the product to 2026.7.0 or later.
- Exploitation
- No known exploitation
Why it is Amber
- CVSS 8.5 high
- Remotely exploitable without logging in
References
Original description
Misskey is an open source, federated social media platform. From 12.0.0 until 2026.7.0, the RSS components display feed item links from configured feeds without verifying their URL schemes. Missing URL scheme verification allows an attacker who controls feed content to provide an unsafe-scheme link that causes script execution when a user clicks it in an RSS widget. This issue is fixed in version 2026.7.0.
Last activity 13 Oct 2026. Patch Forecast updates every hour.