CVE-2026-84321

MEDIUM Status: Received

CVSS Scores

CVSS v3.x Base Score
5.4
MEDIUM

Description

Nginx UI is a web user interface for the Nginx web server. Prior to 2.4.1, GenerateShortToken creates standalone short-token records without a long Token value, but DeleteUserTokens invalidates cached entries only when the long Token field is nonempty. A revoked short token can therefore remain in the short_token cache and authenticate again if the associated account is re-enabled before the cache entry expires because GetTokenUserByShortToken reads the surviving entry, restoring access to HTTP or WebSocket routes that accept short-token authentication. This issue is fixed in version 2.4.1.

Published
October 12, 2026 9:17 PM
Last Modified
October 12, 2026 9:17 PM
Source
[email protected]

Weaknesses (CWE)

CWE-613

References

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