{
  "affected": [
    {
      "ranges": [
        {
          "database_specific": {
            "extracted_events": [
              {
                "introduced": "0"
              },
              {
                "fixed": "16.1.2"
              }
            ],
            "source": [
              "AFFECTED_FIELD",
              "REFERENCES"
            ]
          },
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "9dd0fbe07f70f118cf45042d3a9ffb32f3c21e08"
            },
            {
              "fixed": "73a64a20348d5448e0820469539c8af75f08d314"
            }
          ],
          "repo": "https://github.com/openidentityplatform/openam",
          "type": "GIT"
        }
      ]
    }
  ],
  "aliases": [
    "GHSA-gf8h-gq53-288j"
  ],
  "database_specific": {
    "cna_assigner": "GitHub_M",
    "cwe_ids": [
      "CWE-502"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/62xxx/CVE-2026-62263.json"
  },
  "details": "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.",
  "id": "CVE-2026-62263",
  "modified": "2026-09-17T03:30:33.643054165Z",
  "published": "2026-09-15T09:52:58.323Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/OpenIdentityPlatform/OpenAM/releases/tag/16.1.2"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/62xxx/CVE-2026-62263.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/OpenIdentityPlatform/OpenAM/security/advisories/GHSA-gf8h-gq53-288j"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-62263"
    },
    {
      "type": "FIX",
      "url": "https://github.com/OpenIdentityPlatform/OpenAM/commit/9dd0fbe07f70f118cf45042d3a9ffb32f3c21e08"
    }
  ],
  "schema_version": "1.9.0",
  "severity": [
    {
      "score": "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",
      "type": "CVSS_V4"
    }
  ],
  "summary": "OpenAM: WebAuthn Java deserialization RCE via ObjectInputFilter depth\u003e1 bypass"
}