Vulnerability Intelligence Report
OpenAM Authentication Bypass via MSISDN LDAP Injection
CVE-2026-46619
Open Access Management (OpenAM) is an access management solution. Prior to 16.1.1, MSISDNValidation in the MSISDN authentication module concatenates the request-supplied MSISDN value into an LDAP search filter without escaping, while the default empty trusted-gateway list allows all traffic. In a realm where an MSISDN module is enabled in a reachable authentication chain, an unauthenticated remote attacker can inject LDAP filter metacharacters, select an arbitrary matching user, and obtain a normal authenticated OpenAM session without a password. This issue is fixed in version 16.1.1.
No Active Exploit Signals
CVSS Base Score
9.3
CRITICAL
EPSS Probability:0.99%
Executive Threat Verdict
Evaluating...
Evaluating Threat Landscape...
Assessing known weaponization, exploitation telemetry, and federal advisories.
Attack Surface
—
Authentication
—
Weaponization
—
SSVC Action
—
Weaknesses (CWE)
CWE-90 ↗CWE-90: Improper Neutralization of Special Elements used in an LDAP Query ('LDAP Injection')
Affected Products & Versions
| Vendor | Product | Affected Versions |
|---|---|---|
| OpenIdentityPlatform | OpenAM | < 16.1.1 (affected) |
References & Technical Advisories
No reference links found.
Threat Intelligence Signals
EPSS Score
0.992%
GitHub Advisory
Identity & Timeline
| Status | PUBLISHED |
| Assigning Authority | GitHub, Inc. · Vendor · USA |
| Reserved | 2026-05-15T19:34:14 |
| Published | 2026-09-15T09:51:25 |
| Last Updated | 2026-09-15T14:23:05 |
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