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CVE-2026-48991 XianYuLauncher: Legacy Microsoft account OAuth sign-in flow lacks PKCE and state validation

🗓️ 17 Jun 2026 21:32:41Reported by GoogleType 
osv
 osv
🔗 osv.dev👁 1 Views

Legacy Microsoft account authorization flow in XianYuLauncher before 1.5.5 lacked PKCE and state validation, exposing data; fixed in 1.5.5.

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08 Jul 2026 08:14Current
5.9Medium risk
Vulners AI Score5.9
CVSS 3.15.5
EPSS0.00127
1