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

> Unauthenticated attackers can bypass authentication in OpenAM by injecting LDAP filters via MSISDN values, gaining unauthorized access to user accounts.

- **Severity:** Critical 9.3 (`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`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** Yes
- **Published:** 15 Sep 2026
- **Updated:** 15 Sep 2026
- **Also known as:** GHSA-xq73-fvmr-jvmm, UBUNTU-CVE-2026-46619

## What is CVE-2026-46619?

CVE-2026-46619 is a critical authentication bypass vulnerability in OpenIdentityPlatform OpenAM, published on 15 Sep 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official 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.

Weakness: CWE-90 (Improper Neutralization of Special Elements used in an LDAP Query)

## Which versions are affected by CVE-2026-46619?

2 open source packages ship an affected version, including org.openidentityplatform.openam:openam-auth-msisdn.


| Package | Ecosystem | Affected | Fixed in |
| --- | --- | --- | --- |
| `org.openidentityplatform.openam:openam-auth-msisdn` | Maven | All versions | 16.1.1 |
| `org.openidentityplatform.openam:openam-auth-msisdn` | Maven | All versions | 16.1.1 |

## How do I fix CVE-2026-46619?

Upgrade org.openidentityplatform.openam:openam-auth-msisdn to 16.1.1 or later.

## Is CVE-2026-46619 being exploited?

There is no known exploitation of CVE-2026-46619 in the wild and no public exploit code.

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2026-46619 and fix it if it is affected.

What it is: CVE-2026-46619 is a critical authentication bypass vulnerability in OpenIdentityPlatform OpenAM, published on 15 Sep 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2026-46619 in the wild and no public exploit code.

Affected packages and fixed versions:
- org.openidentityplatform.openam:openam-auth-msisdn (Maven): affected all versions; fixed in 16.1.1
- org.openidentityplatform.openam:openam-auth-msisdn (Maven): affected all versions; fixed in 16.1.1

Task:
1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.
2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.
3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.
4. Run the tests and summarise what changed and why.
5. If nothing in the project is affected, say so and change nothing.

Reference: https://insights.sbomify.com/CVE-2026-46619/ (Markdown: https://insights.sbomify.com/CVE-2026-46619/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2026-46619
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-46619
- OSV: https://osv.dev/vulnerability/CVE-2026-46619

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From sbomify Insights: https://insights.sbomify.com/CVE-2026-46619/
Summaries are generated and may contain mistakes; the official description above is the record.