{ "dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": { "cveId": "CVE-2026-15556", "assignerOrgId": "53f830b8-0a3f-465b-8143-3b8a9948e749", "state": "PUBLISHED", "assignerShortName": "redhat", "dateReserved": "2026-07-13T05:00:40.638Z", "datePublished": "2026-08-11T08:49:44.388Z", "dateUpdated": "2026-10-16T11:15:40.505Z" }, "containers": { "cna": { "title": "Picketlink-federation: picketlink saml 2.0 auth bypass via missing assertions", "metrics": [ { "other": { "content": { "value": "Important", "namespace": "https://access.redhat.com/security/updates/classification/" }, "type": "Red Hat severity rating" } }, { "cvssV3_1": { "attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 8.1, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N", "version": "3.1" }, "format": "CVSS" } ], "descriptions": [ { "lang": "en", "value": "A flaw was found in Picketlink's SP signature validation; a SAML response containing zero assertion elements matching the signature check can allow an attacker to forge a SAML response and auth as any principal with any roles on the protected application." } ], "affected": [ { "vendor": "Red Hat", "product": "Red Hat JBoss Enterprise Application Platform 7.4.25", "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "packageName": "org.picketlink/picketlink-federation", "defaultStatus": "affected", "versions": [ { "version": "2.5.5.SP12-redhat-00016", "lessThan": "*", "versionType": "rpm", "status": "unaffected" } ], "cpes": [ "cpe:/a:redhat:jboss_enterprise_application_platform:7.4" ] }, { "vendor": "Red Hat", "product": "Red Hat JBoss Enterprise Application Platform 7.4 ELS on RHEL 7", "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "packageName": 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