{"cve":"CVE-2026-45051","nvd":{"published":"2026-09-15T10:17:04.153","modified":"2026-09-23T18:21:42.327","status":"Awaiting Analysis","description":"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.","cvss_v4":{"vector":"CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N","score":9.2},"cvss_v3":null,"cwes":["CWE-502"],"references":["https://github.com/OpenIdentityPlatform/OpenAM/commit/8b02328d36bc9cd40602128a6d399d1eda9e6753","https://github.com/OpenIdentityPlatform/OpenAM/releases/tag/16.1.1","https://github.com/OpenIdentityPlatform/OpenAM/security/advisories/GHSA-6c99-87fr-6q7r"],"products":[],"source":"nvd","synced_at":"2026-10-19T22:53:43.293028046+00:00"},"epss":{"cve":"CVE-2026-45051","score":0.00688,"percentile":0.52722,"date":"2026-11-01"},"kev":null,"osv":[{"id":"GHSA-6c99-87fr-6q7r","url":"https://osv.dev/vulnerability/GHSA-6c99-87fr-6q7r","summary":"OpenAM: Pre-auth RCE via Java Deserialization in WebAuthn Authenticator Storage","modified":"2026-10-28T15:30:05.232849506Z","packages":[{"ecosystem":"Maven","name":"org.openidentityplatform.openam:openam-auth-webauthn","purl":"pkg:maven/org.openidentityplatform.openam/openam-auth-webauthn","ranges":["<16.1.1"],"fixed":["16.1.1"]}]}],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}