cvedb.io
CVE-2026-48991
MEDIUM · CVSS 5.5
EPSS exploitation probability: 0%
Published 2026-06-17T22:16:23.507 · Last modified 2026-06-22T18:27:30.807

Summary

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.

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References

This product uses data from the NVD API but is not endorsed or certified by the NVD. Informational only; not professional security advice.