CyberRota Analysis
AI-GeneratedMisskey, an open-source federated social media platform, is vulnerable to a Server-Side Request Forgery (SSRF) in its URL preview functionality, allowing remote attackers to make unauthorized HTTP requests to internal services. Although sensitive internal data is not believed to be exposed due to post-request IP validation, the potential for network exploitation remains a concern. Organizations using versions prior to 2026.6.0 should prioritize upgrading to mitigate this vulnerability.
Public Exploit Signal
A public exploit, PoC, GitHub repository or Metasploit reference was detected for this CVE.
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Original NVD Description
Misskey is an open source, federated social media platform. Prior to 2026.6.0, Misskey contains a Server-Side Request Forgery (SSRF) vulnerability in URL preview functionality in UrlPreviewService. Due to missing network restrictions before establishing outbound connections, a remote attacker can cause the Misskey server to initiate HTTP requests to loopback, private, or link-local services. Because IP address validation takes place after the request has been sent and the process is subsequently rejected, no sensitive internal data is believed to be transmitted back or exposed to the attacker. This issue is fixed in version 2026.6.0.