{"id":"CVE-2026-123540","aliases":[],"cve":{"records":[{"id":"CVE-2026-123540","source":"VulnCheck","state":"PUBLISHED","reasons":[],"replacements":[],"disputed":false,"unsupportedWhenAssigned":false,"reserved":"2026-11-06T00:48:46.279Z","published":"2026-11-08T01:37:46.615Z","modified":"2026-11-12T12:52:06.326Z"}],"publishers":[{"name":"VulnCheck","role":"CNA","organizationId":"83251b91-4cc7-4094-a5c7-464a1b83ea10","modified":"2026-11-08T01:37:46.615Z"},{"name":"CISA-ADP","role":"ADP","organizationId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","modified":"2026-11-12T12:52:06.326Z"}],"references":[{"url":"https://github.com/OpenIdentityPlatform/OpenAM/security/advisories/GHSA-pw99-8h4m-p3gm","tags":["vendor-advisory"],"source":"VulnCheck"},{"url":"https://www.vulncheck.com/advisories/openam-before-16.1.4-incomplete-attribute-encoding-in-saml-1-x-form-post","tags":["third-party-advisory"],"source":"VulnCheck"}],"weaknesses":[{"id":"CWE-116","description":"Improper Encoding or Escaping of Output","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"}]}]}]}],"prioritization":[{"source":"CISA-ADP","type":"SSVC","role":"CISA Coordinator","timestamp":"2026-11-12T12:51:17.655557Z","decisions":[{"name":"Exploitation","value":"none"},{"name":"Automatable","value":"no"},{"name":"Technical Impact","value":"partial"}]}]},"title":"OpenAM before 16.1.4 Incomplete Attribute Encoding in SAML 1.x Form POST","titleSource":"VulnCheck","descriptionSource":"VulnCheck","description":"OpenAM before 16.1.4 contains an incomplete output encoding vulnerability that allows a SAML 1.x identity provider to alter attribute values by injecting unencoded content into the service provider auto-submitted form. Attackers controlling a trusted identity provider can craft assertion attribute names or values that reach the target application in modified form, undermining the integrity of received attributes.","score":2,"severity":"low","published":"2026-11-08T01:37:46.615Z","modified":"2026-11-12T12:52:06.326Z","withdrawn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-federation-library","packageIdentity":{"ecosystem":"Maven","name":"org.openidentityplatform.openam:openam-federation-library"},"cpes":[],"source":"VulnCheck","url":"https://www.cve.org/CVERecord?id=CVE-2026-123540"}],"remediation":[],"references":["https://github.com/OpenIdentityPlatform/OpenAM/security/advisories/GHSA-pw99-8h4m-p3gm","https://www.vulncheck.com/advisories/openam-before-16.1.4-incomplete-attribute-encoding-in-saml-1-x-form-post"],"sources":[{"name":"CVE","id":"CVE-2026-123540","modified":"2026-11-12T12:52:06.326Z","url":"https://www.cve.org/CVERecord?id=CVE-2026-123540"}],"assessments":[{"source":"VulnCheck","vector":"CVSS:4.0/AV:N/AC:H/AT:P/PR:H/UI:P/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N","score":2},{"source":"VulnCheck","vector":"CVSS:3.1/AV:N/AC:H/PR:H/UI:R/S:U/C:N/I:L/A:N","score":2}],"sourceAffected":[],"observedAt":"2026-11-12T20:12:10.912Z","kev":{"status":"not-listed","checkedAt":"2026-11-15T05:05:31.892Z"},"coverage":[{"source":"NVD","status":"available","checkedAt":"2026-11-08T03:30:31.182Z","attemptedAt":"2026-11-08T03:30:31.182Z"},{"source":"GHSA","status":"no-result","checkedAt":"2026-11-08T03:30:31.443Z","attemptedAt":"2026-11-08T03:30:31.443Z"},{"source":"EUVD","status":"available","checkedAt":"2026-11-08T03:30:31.182Z","attemptedAt":"2026-11-08T03:30:31.182Z"},{"source":"EPSS","status":"no-result","checkedAt":"2026-11-08T03:30:31.448Z","attemptedAt":"2026-11-08T03:30:31.448Z"}],"evidence":[{"source":"ENISA EUVD","id":"EUVD-2026-119425","url":"https://euvd.enisa.europa.eu/vulnerability/EUVD-2026-119425","modified":"Nov 8, 2026, 1:37:46 AM","score":2,"vector":"CVSS:4.0/AV:N/AC:H/AT:P/PR:H/UI:P/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N","checkedAt":"2026-11-08T03:30:31.182Z"},{"source":"NVD","id":"CVE-2026-123540","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-123540","modified":"2026-11-08T02:16:44.783","score":2,"vector":"CVSS:4.0/AV:N/AC:H/AT:P/PR:H/UI:P/VC:N/VI:L/VA:N/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":"2026-11-08T03:30:31.182Z"},{"source":"NVD","id":"CVE-2026-123540","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-123540","modified":"2026-11-08T02:16:44.783","score":2,"vector":"CVSS:3.1/AV:N/AC:H/PR:H/UI:R/S:U/C:N/I:L/A:N","checkedAt":"2026-11-08T03:30:31.182Z"}],"aiSummary":{"text":"OpenAM before 16.1.4 has an incomplete output encoding vulnerability, allowing a trusted SAML 1.x identity provider to alter attribute values. Attackers can inject unencoded content into the service provider form, undermining attribute integrity. Access to a trusted identity provider is required.","model":"@cf/meta/llama-3.3-70b-instruct-fp8-fast","generatedAt":"2026-11-08T02:21:38.097Z","sources":[{"name":"CVE","url":"https://www.cve.org/CVERecord?id=CVE-2026-123540"}]}}