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CVE-2026-84321

Nginx UI: Standalone short tokens survive administrative revocation in cache and authenticate again after account re-enable PUBLISHED

Description (CNA)

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.

Affected (CNA)

Vendor / productVersions
0xJacky / nginx-uiaffected < 2.4.1

CWE

CWE-613

References

ADP enrichment

CISA-ADP

No English description supplied.

No references supplied.