CVE-2026-45559 Roxy-WI: LDAP injection in /user/ldap/<username> (admin-only)

Medium 4.9 Published Updated

An admin can inject LDAP filters via the username parameter to enumerate or harvest user attributes outside the intended record.

Exploited in the wild
Not known
Login needed
An administrator
Attackable
Over the internet
Victim action needed
Not needed
Fix
None listed

What is CVE-2026-45559?

CVE-2026-45559 is a medium-severity vulnerability in roxy-wi, published on 10 Jun 2026. An attacker needs administrator access to exploit it, with no action from the victim.

Official description

Roxy-WI is a web interface for managing Haproxy, Nginx, Apache and Keepalived servers. In versions 8.2.6.4 and prior, get_ldap_email (app/modules/roxywi/user.py:120-157) builds the LDAP search filter via f-string concatenation. The username URL path parameter is taken verbatim — no checkAjaxInput, no LDAP escape — and inserted, a username like *)(mail=*)(cn=* injects additional clauses, allowing the admin to enumerate or harvest attributes outside the intended record. At time of publication, there are no publicly available patches.

Weakness: CWE-90

Which versions are affected by CVE-2026-45559?

How do I fix CVE-2026-45559?

No fix has been published for CVE-2026-45559 yet. Limit exposure of the affected software until one is available.

Is CVE-2026-45559 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-45559 exists.

Sources

Also known as GHSA-2257-7mhp-grqp.

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