cvedb.io
CVE-2026-28428
MEDIUM · CVSS 5.3
EPSS exploitation probability: 0%
Published 2026-03-06T05:16:31.607 · Last modified 2026-06-17T10:28:36.320

Summary

Talishar is a fan-made Flesh and Blood project. Prior to commit a9c218e, an authentication bypass vulnerability in Talishar's game endpoint validation logic allows any unauthenticated attacker to perform authenticated game actions — including sending chat messages and submitting game inputs — by supplying an empty authKey parameter (authKey=). The server-side validation uses a loose comparison that accepts an empty string as a valid credential, while correctly rejecting non-empty but incorrect keys. This asymmetry means the authentication mechanism can be completely bypassed without knowing any valid token. This issue has been patched in commit a9c218e.

Affected products

talishar — talishar

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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.