CVEvulnerability

CVE-2026-48991

5.5 MEDIUM Published 2026-06-17 Modified 2026-06-22 Official page ↗
Status
Deferred
Published
2026-06-17
Last modified
2026-06-22
Assigner
[email protected]
CVSS 3.1 ([email protected])
5.5 MEDIUM — CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:N/A:N
Weaknesses
CWE-287

Description

XianYuLauncher is a Minecraft Java Edition launcher. In versions prior to 1.5.5, sensitive authentication artifacts could be exposed during a user-initiated login under certain local attack conditions. Affected versions relied on a fixed localhost redirect URI without PKCE or state validation. Exploitation is most likely to occur when an attacker is able to observe, intercept, or otherwise interfere with the local authentication flow on the same device. This issue has been fixed in version 1.5.5.

Related

Weakness · CWE (1)

  • CWE-287 Improper Authentication weakness

References