{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-123540", "assignerOrgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10", "state": "PUBLISHED", "assignerShortName": "VulnCheck", "dateReserved": "2026-11-06T00:48:46.279Z", "datePublished": "2026-11-08T01:37:46.615Z", "dateUpdated": "2026-11-08T01:37:46.615Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "83251b91-4cc7-4094-a5c7-464a1b83ea10", "shortName": "VulnCheck", "dateUpdated": "2026-11-08T01:37:46.615Z"}, "datePublic": "2026-10-22T00:00:00.000Z", "title": "OpenAM before 16.1.4 Incomplete Attribute Encoding in SAML 1.x Form POST", "descriptions": [{"lang": "en", "value": "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."}], "problemTypes": [{"descriptions": [{"lang": "en", "description": "Improper Encoding or Escaping of Output", "cweId": "CWE-116", "type": "CWE"}]}], "affected": [{"vendor": "OpenIdentityPlatform", "product": "OpenAM", "defaultStatus": "unaffected", "packageURL": "pkg:maven/org.openidentityplatform.openam/openam-federation-library", "versions": [{"version": "0", "status": "affected", "versionType": "semver", "lessThan": "16.1.4"}, {"version": "16.1.4", "status": "unaffected", "versionType": "semver"}]}], "cpeApplicability": [{"nodes": [{"operator": "OR", "negate": false, "cpeMatch": [{"vulnerable": true, "criteria": "cpe:2.3:a:openidentityplatform:openam:*:*:*:*:*:*:*:*", "versionEndExcluding": "16.1.4"}]}]}], "metrics": [{"format": "CVSS", "cvssV4_0": {"version": "4.0", "vectorString": "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", "attackVector": "NETWORK", "attackComplexity": "HIGH", "attackRequirements": "PRESENT", "privilegesRequired": "HIGH", "userInteraction": "PASSIVE", "vulnConfidentialityImpact": "NONE", "vulnIntegrityImpact": "LOW", "vulnAvailabilityImpact": "NONE", "subConfidentialityImpact": "NONE", "subIntegrityImpact": "NONE", "subAvailabilityImpact": "NONE", "baseScore": 2, "baseSeverity": "LOW"}}, {"format": "CVSS", "cvssV3_1": {"version": "3.1", "vectorString": "CVSS:3.1/AV:N/AC:H/PR:H/UI:R/S:U/C:N/I:L/A:N", "attackVector": "NETWORK", "attackComplexity": "HIGH", "privilegesRequired": "HIGH", "userInteraction": "REQUIRED", "scope": "UNCHANGED", "confidentialityImpact": "NONE", "integrityImpact": "LOW", "availabilityImpact": "NONE", "baseScore": 2, "baseSeverity": "LOW"}}], "references": [{"url": "https://github.com/OpenIdentityPlatform/OpenAM/security/advisories/GHSA-pw99-8h4m-p3gm", "tags": ["vendor-advisory"], "name": "GitHub Security Advisory (GHSA-pw99-8h4m-p3gm)"}, {"name": "VulnCheck Advisory: OpenAM before 16.1.4 Incomplete Attribute Encoding in SAML 1.x Form POST", "tags": ["third-party-advisory"], "url": "https://www.vulncheck.com/advisories/openam-before-16.1.4-incomplete-attribute-encoding-in-saml-1-x-form-post"}], "credits": [{"lang": "en", "value": "qurb4n01", "type": "reporter"}, {"lang": "en", "value": "vharseko", "type": "remediation developer"}, {"lang": "en", "value": "maximthomas", "type": "remediation reviewer"}, {"lang": "en", "value": "tsujiguchitky", "type": "remediation reviewer"}], "x_generator": {"engine": "vulncheck-endgame"}}}}