{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-88907", "assignerOrgId": "ca940d4e-fea4-4aa2-9a58-591a58b1ce21", "state": "PUBLISHED", "assignerShortName": "TR-CERT", "dateReserved": "2026-09-10T12:21:09.545Z", "datePublished": "2026-09-24T12:46:21.079Z", "dateUpdated": "2026-09-24T14:41:39.471Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "ca940d4e-fea4-4aa2-9a58-591a58b1ce21", "shortName": "TR-CERT", "dateUpdated": "2026-09-24T12:46:21.079Z"}, "title": "SAML ePPN Attribute Validation Bypass in T\u00dcB\u0130TAK ULAKB\u0130M's UlakPDF", "datePublic": "2026-09-24T12:41:00.000Z", "problemTypes": [{"descriptions": [{"lang": "en", "cweId": "CWE-863", "description": "CWE-863 Incorrect Authorization", "type": "CWE"}]}], "impacts": [{"capecId": "CAPEC-115", "descriptions": [{"lang": "en", "value": "CAPEC-115 Authentication Bypass"}]}], "affected": [{"vendor": "T\u00dcB\u0130TAK ULAKB\u0130M", "product": "UlakPDF", "versions": [{"status": "affected", "version": "0", "lessThanOrEqual": "09092026", "versionType": "custom"}], "defaultStatus": "unaffected"}], "descriptions": [{"lang": "en", "value": "Incorrect Authorization vulnerability in T\u00dcB\u0130TAK ULAKB\u0130M UlakPDF allows Authentication Bypass.\n\nThis issue affects UlakPDF: through 09092026.", "supportingMedia": [{"type": "text/html", "base64": false, "value": "Incorrect Authorization vulnerability in T\u00dcB\u0130TAK ULAKB\u0130M UlakPDF allows Authentication Bypass.<p>This issue affects UlakPDF: through 09092026.</p>"}]}], "references": [{"url": "https://siberguvenlik.gov.tr/guvenlik-bildirimleri/detay/tr-26-1170", "tags": ["government-resource"]}], "metrics": [{"format": "CVSS", "scenarios": [{"lang": "en", "value": "GENERAL"}], "cvssV3_1": {"version": "3.1", "attackVector": "NETWORK", "attackComplexity": "HIGH", "privilegesRequired": "NONE", "userInteraction": "NONE", "scope": "UNCHANGED", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "availabilityImpact": "NONE", "baseSeverity": "HIGH", "baseScore": 7.4, "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N"}}], "credits": [{"lang": "en", "value": "Ahmed Emin Ayg\u00f6ren", "type": "finder"}], "source": {"defect": ["TR-26-1170"], "advisory": "TR-26-1170", "discovery": "UNKNOWN"}, "x_generator": {"engine": "Vulnogram 1.0.5"}}, "adp": [{"metrics": [{"other": {"type": "ssvc", "content": {"timestamp": "2026-09-24T14:41:31.719339Z", "id": "CVE-2026-88907", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "total"}], "role": "CISA Coordinator", "version": "2.0.3"}}}], "title": "CISA ADP Vulnrichment", "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-09-24T14:41:39.471Z"}}]}}

{}

{"affected": [{"affectedData": [{"defaultStatus": "unaffected", "product": "UlakPDF", "vendor": "T\u00dcB\u0130TAK ULAKB\u0130M", "versions": [{"lessThanOrEqual": "09092026", "status": "affected", "version": "0", "versionType": "custom"}]}], "source": "iletisim@usom.gov.tr"}], "cveTags": [], "descriptions": [{"lang": "en", "value": "Incorrect Authorization vulnerability in T\u00dcB\u0130TAK ULAKB\u0130M UlakPDF allows Authentication Bypass.\n\nThis issue affects UlakPDF: through 09092026."}], "id": "CVE-2026-88907", "lastModified": "2026-09-24T15:17:50.540", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "HIGH", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 7.4, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N", "version": "3.1"}, "exploitabilityScore": 2.2, "impactScore": 5.2, "source": "iletisim@usom.gov.tr", "type": "Secondary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-88907", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "total"}], "role": "CISA Coordinator", "timestamp": "2026-09-24T14:41:31.719339Z", "version": "2.0.3"}}]}, "published": "2026-09-24T13:17:15.873", "references": [{"source": "iletisim@usom.gov.tr", "url": "https://siberguvenlik.gov.tr/guvenlik-bildirimleri/detay/tr-26-1170"}], "sourceIdentifier": "iletisim@usom.gov.tr", "vulnStatus": "Received", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-863"}], "source": "iletisim@usom.gov.tr", "type": "Secondary"}]}

{}

{}