CVE-2026-28428
- Source
- https://cve.org/CVERecord?id=CVE-2026-28428
- Import Source
- https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-28428.json
- JSON Data
- https://api.osv.dev/v1/vulns/CVE-2026-28428
- Aliases
-
- GHSA-2659-p579-wv83
- Published
- 2026-03-06T04:59:52Z
- Modified
- 2026-04-10T05:42:20Z
- Severity
-
- 5.3 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N CVSS Calculator
- Summary
- Talishar: Authentication Bypass via Empty authKey Parameter Allows Unauthenticated Game Actions
- Details
-
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.
- Database specific
{ "cna_assigner": "GitHub_M", "cwe_ids": [ "CWE-287" ], "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/28xxx/CVE-2026-28428.json" }- References