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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.

PUBLISHED Reserved 2026-03-17 | Published 2026-04-20 | Updated 2026-04-21 | Assigner GitHub_M




HIGH: 8.6CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N

Problem types

CWE-284: Improper Access Control

CWE-863: Incorrect Authorization

Product status

< 2.3.4
affected

References

github.com/...inx-ui/security/advisories/GHSA-x234-x5vq-cc2v

cve.org (CVE-2026-33031)

nvd.nist.gov (CVE-2026-33031)

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