Roxy-WI has Pre-Authentication LDAP Injection that Leads to Authentication Bypass
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.
- Products
- Not specified
- Affected versions
- Not specified
- Fixed versions
- Not specified
- CVEs
- CVE-2026-33432
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 3 Nov 2026, 04:21 UTC · Revision 1
Source evidence
Roxy-WI has Pre-Authentication LDAP Injection that Leads to Authentication Bypass
core-osv · Original sourcePublished 20 Apr 2026, 20:26 UTC
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.
osv:CVE-2026-33432
Complete source record
{
"id": "9f16c0ccce15e926bc0bea89a56fabaa556ef4cda2ada7dba250260e47eb73ce",
"url": "https://osv.dev/vulnerability/CVE-2026-33432",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "Roxy-WI has Pre-Authentication LDAP Injection that Leads to Authentication Bypass",
"summary": "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.",
"evidence": "osv:CVE-2026-33432",
"products": [],
"severity": "high",
"structured": {
"id": "CVE-2026-33432",
"aliases": [
"CVE-2026-33432",
"GHSA-hv3x-4w38-r92m"
],
"metrics": [
{
"type": "CVSS_V4",
"score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N/E:P"
}
],
"affected": [
{
"ranges": [
{
"repo": "https://github.com/roxy-wi/roxy-wi",
"type": "GIT",
"events": [
{
"introduced": "0"
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{
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{
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{
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}
],
"source": "AFFECTED_FIELD",
"strategy": "StringRangeExpression"
},
{
"cpe": "cpe:2.3:a:roxy-wi:roxy-wi:*:*:*:*:*:*:*:*",
"range": [
{
"introduced": "0"
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{
"last_affected": "8.2.8.2"
}
],
"source": "CPE_RANGE"
}
]
}
}
],
"versions": [
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],
"database_specific": {
"source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-33432.json"
}
}
],
"modified": "2026-10-28T02:30:25.856592654Z",
"provider": "osv",
"references": [
"https://github.com/roxy-wi/roxy-wi/blob/v8.2.8.2/app/modules/roxywi/auth.py",
"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/33xxx/CVE-2026-33432.json",
"https://github.com/roxy-wi/roxy-wi/security/advisories/GHSA-hv3x-4w38-r92m",
"https://nvd.nist.gov/vuln/detail/CVE-2026-33432"
],
"provider_metadata": {
"cwe_ids": [
"CWE-287"
],
"cna_assigner": "GitHub_M",
"osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/33xxx/CVE-2026-33432.json"
}
},
"related_cves": [
{
"value": "CVE-2026-33432",
"evidence": "/id"
}
],
"security_relevant": true,
"severity_evidence": "/severity/0/score"
},
"source_id": "core-osv",
"document_id": 492431,
"published_at": "2026-04-20T20:26:52.217+00:00"
}