Nginx UI is a web user interface for the Nginx web server. Prior to version 2.3.4, a user who was disabled by an administrator can use previously issued API tokens for up to the token lifetime. In practice, disabling a compromised account does not actually terminate that user’s access, so an attacker who already stole a JWT can continue reading and modifying protected resources after the account is marked disabled. Since tokens can be used to create new accounts, it is possible the disabled user to maintain the privilege. Version 2.3.4 patches the issue.

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Mon, 20 Apr 2026 21:00:00 +0000

Type Values Removed Values Added
Description Nginx UI is a web user interface for the Nginx web server. Prior to version 2.3.4, a user who was disabled by an administrator can use previously issued API tokens for up to the token lifetime. In practice, disabling a compromised account does not actually terminate that user’s access, so an attacker who already stole a JWT can continue reading and modifying protected resources after the account is marked disabled. Since tokens can be used to create new accounts, it is possible the disabled user to maintain the privilege. Version 2.3.4 patches the issue.
Title Nginx-UI: Disabled users retain full API access through previously issued bearer tokens
Weaknesses CWE-284
CWE-863
References
Metrics cvssV4_0

{'score': 8.6, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N'}


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cve-icon MITRE

Status: PUBLISHED

Assigner: GitHub_M

Published:

Updated: 2026-04-20T20:12:07.905Z

Reserved: 2026-03-17T17:22:14.669Z

Link: CVE-2026-33031

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Received

Published: 2026-04-20T21:16:32.783

Modified: 2026-04-20T21:16:32.783

Link: CVE-2026-33031

cve-icon Redhat

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cve-icon OpenCVE Enrichment

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Weaknesses