Roxy-WI up to 8.2.8.2 LDAP Authentication Username improper authentication

Summaryinfo

A vulnerability classified as critical was found in Roxy-WI up to 8.2.8.2. Affected by this vulnerability is an unknown functionality of the component LDAP Authentication. Such manipulation of the argument Username leads to improper authentication. This vulnerability is listed as CVE-2026-33432. The attack may be performed from remote. There is no available exploit.

Detailsinfo

A vulnerability was found in Roxy-WI up to 8.2.8.2 and classified as critical. Affected by this issue is an unknown function of the component LDAP Authentication. The manipulation of the argument username with an unknown input leads to a improper authentication vulnerability. Using CWE to declare the problem leads to CWE-287. When an actor claims to have a given identity, the product does not prove or insufficiently proves that the claim is correct. Impacted is confidentiality, integrity, and availability. CVE summarizes:

Roxy-WI is a web interface for managing Haproxy, Nginx, Apache and Keepalived servers. In versions up to and including 8.2.8.2, when LDAP authentication is enabled, Roxy-WI constructs an LDAP search filter by directly concatenating the user-supplied login username into the filter string without escaping LDAP special characters. An unauthenticated attacker can inject LDAP filter metacharacters into the username field to manipulate the search query, cause the directory to return an unintended user entry, and bypass authentication entirely — gaining access to the application without knowing any valid password. As of time of publication, no known patches are available.

The advisory is available at github.com. This vulnerability is handled as CVE-2026-33432 since 03/19/2026. The exploitation is known to be easy. The attack may be launched remotely. No form of authentication is required for exploitation. Technical details are known, but there is no available exploit. The structure of the vulnerability defines a possible price range of USD $0-$5k at the moment (estimation calculated on 04/21/2026).

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

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Productinfo

Name

• Roxy-WI

Version

• 8.2.8.0
• 8.2.8.1
• 8.2.8.2

Website

• Product: https://github.com/roxy-wi/roxy-wi/

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