CVE-2026-45051: OpenIdentityPlatform OpenAM Java deserialization in WebAuthn module

CVE-2026-45051 · Severity: critical · CVSS 4 · Published 2026-09-15

OpenAM is an open-source access management solution used to secure web applications and services. A security flaw in its WebAuthn module could allow an attacker to take complete control of the application server. This could lead to the theft of sensitive user data, service disruptions, or a total compromise of the corporate identity infrastructure.

Technologies: Open Identity Platform OpenAM Community Edition. Vendors: Maven, Open Identity Platform.

Quick answers

Is CVE-2026-45051 exploited in the wild?
No. Junglewise Threat Intelligence has no report of CVE-2026-45051 being exploited in the wild.
How severe is CVE-2026-45051?
Critical severity, with a CVSS score of 4, published 15 September 2026.
Which products and versions are affected?
org.openidentityplatform.openam:openam-auth-webauthn (Maven) <= 16.0.6, ECOSYSTEM:introduced=0,fixed=16.1.1; Open Identity Platform OpenAM Community Edition <= 16.0.6.
Is there a fix for CVE-2026-45051?
Yes. org.openidentityplatform.openam:openam-auth-webauthn (Maven): upgrade to 16.1.1 or later. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.
How is CVE-2026-45051 attacked?
It is attacked over the network, in a software library.
Am I affected by CVE-2026-45051?
Check whether you run org.openidentityplatform.openam:openam-auth-webauthn (Maven) or Open Identity Platform OpenAM Community Edition at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

How to fix

  • org.openidentityplatform.openam:openam-auth-webauthn (Maven): upgrade to 16.1.1 or later
    # set org.openidentityplatform.openam:openam-auth-webauthn to 16.1.1 in your pom.xml or build.gradle

Technical details

A Java deserialization vulnerability (CWE-502) exists in the OpenAM WebAuthn authentication module. The root cause is the unsafe deserialization of data retrieved from storage attributes (such as LDAP or directory records) during the WebAuthn authentication flow. While not the default configuration, the vulnerability is exploitable if an attacker can modify the storage attribute or if the 'userAttribute' is set to a user-writable field. An attacker can achieve arbitrary code execution in the context of the application server process. This issue is patched in OpenAM Community Edition version 16.1.1.

Affected products

  • OpenIdentityPlatform OpenAM Community Edition <= 16.0.6

Identifiers

  • CVE-2026-45051
  • GHSA-6c99-87fr-6q7r

Timeline

  • 2026-06-24: disclosed
  • 2026-06-24: advisory: GHSA-6c99-87fr-6q7r published

References

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