{"cve":"CVE-2026-62263","nvd":{"published":"2026-09-15T10:17:05.810","modified":"2026-09-23T18:21:42.327","status":"Awaiting Analysis","description":"Open Access Management (OpenAM) is an access management solution. Prior to 16.1.2, WebAuthnAuthentication.deserialize applies an ObjectInputFilter that allows every serialized object at depth greater than 1 and therefore constrains only an AuthenticatorImpl root object. A pre-authentication attacker can supply a userHandle whose serialized graph has a valid AuthenticatorImpl root and a nested gadget class, causing readObject or readResolve execution before the cast and assertion verification when a usable gadget is on the classpath. This bypasses the incomplete remediation for the earlier WebAuthn deserialization vulnerability. This issue is fixed in version 16.1.2.","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/9dd0fbe07f70f118cf45042d3a9ffb32f3c21e08","https://github.com/OpenIdentityPlatform/OpenAM/releases/tag/16.1.2","https://github.com/OpenIdentityPlatform/OpenAM/security/advisories/GHSA-gf8h-gq53-288j"],"products":[],"source":"nvd","synced_at":"2026-10-19T22:53:43.293028046+00:00"},"epss":{"cve":"CVE-2026-62263","score":0.0086,"percentile":0.58532,"date":"2026-10-31"},"kev":null,"osv":[{"id":"GHSA-gf8h-gq53-288j","url":"https://osv.dev/vulnerability/GHSA-gf8h-gq53-288j","summary":"OpenAM: WebAuthn Java deserialization RCE via ObjectInputFilter depth>1 bypass","modified":"2026-07-24T21:26:41.828248Z","packages":[{"ecosystem":"Maven","name":"org.openidentityplatform.openam:openam-auth-webauthn","purl":"pkg:maven/org.openidentityplatform.openam/openam-auth-webauthn","ranges":["<16.1.2"],"fixed":["16.1.2"]}]}],"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."]}