Link following in Misskey - #VU150210
Published: September 16, 2026
Vulnerability identifier: #VU150210
CSH Severity: Low
CVSS v4: 6.7 [CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:A/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N]
CVE-ID: N/A
CWE-ID: CWE-59
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a remote user to compromise the target system.
The vulnerability exists due to insufficient validation in custom emoji ZIP import. A remote administrator can obtain the contents of files on the server host.
Affected software
Misskey
Remediation
Install updates from vendor's website.
Misskey - update to 2026.9.0