USN-8315-1: MediaWiki vulnerabilities
It was discovered that MediaWiki incorrectly handled group membership
visibility in the OATHAuth extension. An authenticated attacker could
use this issue to determine if other users had two-factor authentication
enabled. (CVE-2026-34087)
It was discovered that MediaWiki incorrectly handled suppressed log entry
titles in the RecentChanges list. An unauthenticated attacker could use
this issue to view titles of deleted or suppressed pages that should be hidden.
(CVE-2026-34088)
It was discovered that MediaWiki incorrectly handled resource loading timing
information. An attacker could use this issue to determine if certain pages
existed on a wiki. (CVE-2026-34092)