{"id":"CVE-2026-123543","aliases":[],"cve":{"records":[{"id":"CVE-2026-123543","source":"VulnCheck","state":"PUBLISHED","reasons":[],"replacements":[],"disputed":false,"unsupportedWhenAssigned":false,"reserved":"2026-11-06T00:48:46.279Z","published":"2026-11-08T01:37:49.366Z","modified":"2026-11-12T14:08:49.224Z"}],"publishers":[{"name":"VulnCheck","role":"CNA","organizationId":"83251b91-4cc7-4094-a5c7-464a1b83ea10","modified":"2026-11-08T01:37:49.366Z"},{"name":"CISA-ADP","role":"ADP","organizationId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","modified":"2026-11-12T14:08:49.224Z"}],"references":[{"url":"https://github.com/OpenIdentityPlatform/OpenAM/security/advisories/GHSA-x7wr-5gxg-v833","tags":["vendor-advisory"],"source":"VulnCheck"},{"url":"https://www.vulncheck.com/advisories/openam-before-16.1.4-unauthenticated-dos-via-unbounded-java-deserialisation","tags":["third-party-advisory"],"source":"VulnCheck"}],"weaknesses":[{"id":"CWE-770","description":"Allocation of Resources Without Limits or Throttling","source":"VulnCheck"}],"applicability":[{"source":"VulnCheck","statements":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:a:openidentityplatform:openam:*:*:*:*:*:*:*:*","versionEndExcluding":"16.1.4"}]}]},{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:a:openidentityplatform:openam:*:*:*:*:*:*:*:*","versionEndExcluding":"16.1.4"}]}]},{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:a:openidentityplatform:openam:*:*:*:*:*:*:*:*","versionEndExcluding":"16.1.4"}]}]},{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:a:openidentityplatform:openam:*:*:*:*:*:*:*:*","versionEndExcluding":"16.1.4"}]}]}]}],"prioritization":[{"source":"CISA-ADP","type":"SSVC","role":"CISA Coordinator","timestamp":"2026-11-12T14:08:28.633965Z","decisions":[{"name":"Exploitation","value":"none"},{"name":"Automatable","value":"yes"},{"name":"Technical Impact","value":"partial"}]}]},"title":"OpenAM before 16.1.4 Unauthenticated DoS via Unbounded Java Deserialisation","titleSource":"VulnCheck","descriptionSource":"VulnCheck","description":"OpenAM before 16.1.4 contains a denial of service vulnerability that allows unauthenticated attackers to exhaust server resources by sending serialized Java data without size or structure limits. Attackers can send small crafted requests to remote SDK endpoints, classic login pages, or the administration console to block authentication, session validation and policy decisions.","score":8.7,"severity":"high","published":"2026-11-08T01:37:49.366Z","modified":"2026-11-12T14:08:49.224Z","withdrawn":false,"knownExploited":false,"affected":[],"products":[{"vendor":"OpenIdentityPlatform","name":"OpenAM","platforms":[],"versions":[{"version":"0","status":"affected","lessThan":"16.1.4","versionType":"semver"},{"version":"16.1.4","status":"unaffected","versionType":"semver"}],"defaultStatus":"unaffected","packageURL":"pkg:maven/org.openidentityplatform.openam/openam-shared","packageIdentity":{"ecosystem":"Maven","name":"org.openidentityplatform.openam:openam-shared"},"cpes":[],"source":"VulnCheck","url":"https://www.cve.org/CVERecord?id=CVE-2026-123543"},{"vendor":"OpenIdentityPlatform","name":"OpenAM","platforms":[],"versions":[{"version":"0","status":"affected","lessThan":"16.1.4","versionType":"semver"},{"version":"16.1.4","status":"unaffected","versionType":"semver"}],"defaultStatus":"unaffected","packageURL":"pkg:maven/org.openidentityplatform.openam/openam-core","packageIdentity":{"ecosystem":"Maven","name":"org.openidentityplatform.openam:openam-core"},"cpes":[],"source":"VulnCheck","url":"https://www.cve.org/CVERecord?id=CVE-2026-123543"},{"vendor":"OpenIdentityPlatform","name":"OpenAM","platforms":[],"versions":[{"version":"0","status":"affected","lessThan":"16.1.4","versionType":"semver"},{"version":"16.1.4","status":"unaffected","versionType":"semver"}],"defaultStatus":"unaffected","packageURL":"pkg:maven/org.openidentityplatform.openam/openam-clientsdk","packageIdentity":{"ecosystem":"Maven","name":"org.openidentityplatform.openam:openam-clientsdk"},"cpes":[],"source":"VulnCheck","url":"https://www.cve.org/CVERecord?id=CVE-2026-123543"},{"vendor":"OpenIdentityPlatform","name":"OpenAM","platforms":[],"versions":[{"version":"0","status":"affected","lessThan":"16.1.4","versionType":"semver"},{"version":"16.1.4","status":"unaffected","versionType":"semver"}],"defaultStatus":"unaffected","packageURL":"pkg:maven/org.openidentityplatform.openam/openam-server-only","packageIdentity":{"ecosystem":"Maven","name":"org.openidentityplatform.openam:openam-server-only"},"cpes":[],"source":"VulnCheck","url":"https://www.cve.org/CVERecord?id=CVE-2026-123543"}],"remediation":[],"references":["https://github.com/OpenIdentityPlatform/OpenAM/security/advisories/GHSA-x7wr-5gxg-v833","https://www.vulncheck.com/advisories/openam-before-16.1.4-unauthenticated-dos-via-unbounded-java-deserialisation"],"sources":[{"name":"CVE","id":"CVE-2026-123543","modified":"2026-11-12T14:08:49.224Z","url":"https://www.cve.org/CVERecord?id=CVE-2026-123543"}],"assessments":[{"source":"VulnCheck","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N","score":8.7},{"source":"VulnCheck","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","score":7.5}],"sourceAffected":[],"observedAt":"2026-11-12T21:24:04.347Z","kev":{"status":"not-listed","checkedAt":"2026-11-15T01:25:32.844Z"},"coverage":[{"source":"NVD","status":"available","checkedAt":"2026-11-08T03:20:33.387Z","attemptedAt":"2026-11-08T03:20:33.387Z"},{"source":"GHSA","status":"no-result","checkedAt":"2026-11-08T03:20:33.350Z","attemptedAt":"2026-11-08T03:20:33.350Z"},{"source":"EUVD","status":"available","checkedAt":"2026-11-08T03:20:33.297Z","attemptedAt":"2026-11-08T03:20:33.297Z"},{"source":"EPSS","status":"no-result","checkedAt":"2026-11-08T03:20:32.913Z","attemptedAt":"2026-11-08T03:20:32.913Z"}],"evidence":[{"source":"ENISA EUVD","id":"EUVD-2026-119428","url":"https://euvd.enisa.europa.eu/vulnerability/EUVD-2026-119428","modified":"Nov 8, 2026, 1:37:49 AM","score":8.7,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N","checkedAt":"2026-11-08T03:20:33.297Z"},{"source":"NVD","id":"CVE-2026-123543","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-123543","modified":"2026-11-08T02:16:45.253","score":8.7,"vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X","checkedAt":"2026-11-08T03:20:33.387Z"},{"source":"NVD","id":"CVE-2026-123543","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-123543","modified":"2026-11-08T02:16:45.253","score":7.5,"vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","checkedAt":"2026-11-08T03:20:33.387Z"}],"aiSummary":{"text":"OpenAM before version 16.1.4 is vulnerable to a denial of service attack, allowing unauthenticated attackers to exhaust server resources by sending serialized Java data without size or structure limits. Attackers can send crafted requests to block authentication and policy decisions. The weakness is due to allocation of resources without limits or throttling.","model":"@cf/meta/llama-3.3-70b-instruct-fp8-fast","generatedAt":"2026-11-08T02:21:31.758Z","sources":[{"name":"CVE","url":"https://www.cve.org/CVERecord?id=CVE-2026-123543"}]}}