CVE-2026-46619: Openam auth msisdn Authentication Bypass Vulnerability

HIGH
Advisory Identifier: GHSA-xq73-fvmr-jvmm
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CWE-1188 CWE-90
Published
Advisory Summary

CVE-2026-46619 is a HIGH authentication bypass vulnerability (CWE-1188: Initialization of a Resource with an Insecure Default) affecting Openam auth msisdn libraries in the Maven ecosystem. The issue involves openam authentication bypass via msisdn ldap injection. Remediation is available by upgrading affected packages to version 16.1.1.

CVE-2026-46619 at a Glance

CVE Identifier CVE-2026-46619
GHSA Identifier GHSA-xq73-fvmr-jvmm
Severity HIGH
CVSS v3.1 Base Score N/A
CWE Classification CWE-1188: Initialization of a Resource with an Insecure Default
Affected Product Openam auth msisdn
Package Ecosystem Maven
Published Date
Last Updated

How to Fix CVE-2026-46619

To remediate this vulnerability, upgrade all affected Openam auth msisdn dependencies to a patched release. Both direct and transitive dependencies should be checked, as frameworks or security libraries may pull in vulnerable versions transitively.

org.openidentityplatform.openam:openam-auth-msisdn fixed: 16.1.1 
<dependency>
    <groupId>org.openidentityplatform.openam</groupId>
    <artifactId>openam-auth-msisdn</artifactId>
    <version>16.1.1</version>
</dependency>
Verify Direct and Transitive Dependencies

Run the following command in your project directory to verify that all resolved dependencies use the patched release: 

mvn dependency:tree -Dincludes=org.openidentityplatform.openam

How to Check if You Are Affected

To determine whether your Java application is affected by CVE-2026-46619, inspect your build dependencies using the Maven Dependency Plugin:

mvn dependency:tree -Dincludes=org.openidentityplatform.openam

Analyze the terminal output to locate any version of Openam auth msisdn in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than 16.1.1), your application is affected.

Note: The mvn dependency:tree -Dincludes=org.openidentityplatform.openam command inspects the resolved dependency graph declared in your project's POM files; it does not perform automated security scanning or inspect runtime dynamic classpaths. Always verify runtime container classpaths and shaded JARs.

Technical Details

Vulnerability Mechanism & Technical Analysis

This vulnerability is classified under CWE-1188: Initialization of a Resource with an Insecure Default, where the product initializes or sets a resource with a default that is intended to be changed by the product's installer, administrator, or maintainer, but the default is not secure. In Openam auth msisdn, software state validation or input boundaries are circumvented during processing. Review the official source advisory statement below for specific affected components, classes, and reproduction details.

Source Advisory Statement

## Summary **Description** An LDAP Injection (CWE-90) vulnerability in the MSISDN authentication module allows an unauthenticated, remote attacker to obtain an arbitrary OpenAM session without a password in the default trusted gateway configuration. This impacts OpenAM Community Edition through version 16.0.6. This issue was patched in version 16.1.1. ## Impact OpenAM deployments through version 16.0.6 that have MSISDN enabled are potentially affected. This enables a pre-authentication login bypass for any realm where an MSISDN module instance is enabled in an authentication chain and reachable through the trusted-gateway list, which allows all traffic by default. The request-supplied MSISDN value was concatenated directly into an LDAP search filter. The resulting OpenAM session is a normal authenticated session for the matched user. ## Patch This has been patched in OpenAM Community Edition version 16.1.1. Users are encouraged to update to the latest release.

CVE-2026-46619 Affected Openam auth msisdn Versions

1 component(s)
Fixed Versions:
16.1.1
Product / Package Ecosystem Affected Versions Fixed Version
org.openidentityplatform.openam:openam-auth-msisdn
maven/org.openidentityplatform.openam/openam-auth-msisdn
Maven
< 16.1.1
16.1.1

References

GitHub Advisory / Wiki ADVISORY
https://github.com/OpenIdentityPlatform/OpenAM/security/advisories/GHSA-xq73-fvmr-jvmm
Openam auth msisdn Source Repository REPOSITORY
https://github.com/OpenIdentityPlatform/OpenAM

Frequently Asked Questions

What is CVE-2026-46619?
CVE-2026-46619 is a security vulnerability in Openam auth msisdn involving OpenAM Authentication Bypass via MSISDN LDAP Injection under CWE-1188: Initialization of a Resource with an Insecure Default.
Which Openam auth msisdn versions are affected?
Affected versions include releases prior to 16.1.1 across affected packages: org.openidentityplatform.openam:openam-auth-msisdn.
What version fixes CVE-2026-46619?
Upgrading to 16.1.1 (or the latest patched release for your respective branch) resolves the vulnerability.
Is openam-auth-msisdn affected?
Yes, org.openidentityplatform.openam:openam-auth-msisdn is affected in releases prior to 16.1.1. Upgrade your dependency to 16.1.1 or later.
What CWE is associated with CVE-2026-46619?
CVE-2026-46619 is classified under CWE-1188: Initialization of a Resource with an Insecure Default (The product initializes or sets a resource with a default that is intended to be changed by the product's installer, administrator, or maintainer, but the default is not secure.).
How can I check Maven dependencies for CVE-2026-46619?
Run the dependency tree command: 'mvn dependency:tree -Dincludes=org.openidentityplatform.openam'. This command lists direct and transitive dependencies in your build configuration so you can verify if a vulnerable version is resolved.
Machine-readable OSV JSON OSV v1.5 Schema
Normalized schema output
View Raw JSON 
{
  "schema_version" : "1.4.0",
  "id" : "GHSA-xq73-fvmr-jvmm",
  "modified" : "2026-06-26T17:32:18Z",
  "published" : "2026-06-26T17:32:18Z",
  "aliases" : [ "CVE-2026-46619" ],
  "summary" : "OpenAM Authentication Bypass via MSISDN LDAP Injection",
  "details" : "## Summary\n\n**Description**\n\nAn LDAP Injection (CWE-90) vulnerability in the MSISDN authentication module allows an unauthenticated, remote attacker to obtain an arbitrary OpenAM session without a password in the default trusted gateway configuration. This impacts OpenAM Community Edition through version 16.0.6. This issue was patched in version 16.1.1.\n\n## Impact\nOpenAM deployments through version 16.0.6 that have MSISDN enabled are potentially affected. This enables a pre-authentication login bypass for any realm where an MSISDN module instance is enabled in an authentication chain and reachable through the trusted-gateway list, which allows all traffic by default. The request-supplied MSISDN value was concatenated directly into an LDAP search filter. The resulting OpenAM session is a normal authenticated session for the matched user.\n\n## Patch\nThis has been patched in OpenAM Community Edition version 16.1.1. Users are encouraged to update to the latest release.",
  "severity" : [ {
    "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"
  } ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "Maven",
      "name" : "org.openidentityplatform.openam:openam-auth-msisdn"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "0"
      }, {
        "fixed" : "16.1.1"
      } ]
    } ]
  } ],
  "references" : [ {
    "type" : "WEB",
    "url" : "https://github.com/OpenIdentityPlatform/OpenAM/security/advisories/GHSA-xq73-fvmr-jvmm"
  }, {
    "type" : "PACKAGE",
    "url" : "https://github.com/OpenIdentityPlatform/OpenAM"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-1188", "CWE-90" ],
    "severity" : "HIGH",
    "github_reviewed" : true,
    "github_reviewed_at" : "2026-06-26T17:32:18Z",
    "nvd_published_at" : null
  }
}