CVE-2026-45051: OpenAM Pre-auth RCE via Java Deserialization in WebAuthn Authenticator Storage
OpenIdentityPlatform · OpenAM
No fix listed · Affected: OpenIdentityPlatform OpenAM · Exploitation: not established
ExploitationNot established
Not in CISA KEV as of catalogue 2026.11.13 (13 Nov)
- In CISA KEV: not seen
- Exploited (reported): not seen
- Scanning observed: not seen
- Proof of concept public: not seen
- Not establishedNothing in the sources we check
Higher than 53% of scored CVEs
Not scored yet. NVD has not published a CVSS score.
DescriptionNVD
Open Access Management (OpenAM) is an access management solution. Prior to 16.1.1, WebAuthnAuthentication loads a serialized AuthenticatorImpl object graph from the configured userAttribute through loadAuthenticators without an ObjectInputFilter. Exploitation requires the WebAuthn flow to be reachable and an attacker to have previously written controlled data to that attribute through delegated administration, provisioning, directory access, legacy REST self-registration, or unsafe configuration. When those non-default conditions hold, the data is deserialized before assertion verification and can execute a classpath gadget in the application server process. This issue is fixed in version 16.1.1.
On the Atlas
Every published CVE is on the CyberSIXT Atlas, grouped by weakness, vendor and month.
- Exploitation
- Unlikely (under 1%). EPSS under 1%, or no score yet.
- CISA KEV
- Not listed
- Public check
- No public nuclei template
- Vendor
- OpenIdentityPlatform
- Published
- September 2026
Coverage1 article · 1 outlet
First in our coverage: SecurityOnline, 2 Jul.
- Critical OpenAM bug CVE-2026-45051 allows remote code executionSecurityOnline · first in our coverage
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