{"api_version":"1","generated_at":"2026-07-24T18:23:22+00:00","cve":"CVE-2026-14865","urls":{"html":"https://cve.report/CVE-2026-14865","api":"https://cve.report/api/cve/CVE-2026-14865.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2026-14865","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-14865"},"summary":{"title":"XXE Denial of Service via RadLayoutBuilder Client State in Telerik UI for ASP.NET AJAX","description":"In Progress® Telerik® UI for AJAX prior to v2026.2.708, the internal LayoutBuilder control processes client-state XML without disabling DTD processing, allowing unauthenticated denial of service via recursive XML entity expansion.","state":"PUBLISHED","assigner":"ProgressSoftware","published_at":"2026-07-22 14:17:15","updated_at":"2026-07-22 20:16:48"},"problem_types":["CWE-776","CWE-776 CWE-776 Improper Restriction of Recursive Entity References in DTDs ('XML Entity Expansion')"],"metrics":[{"version":"3.1","source":"security@progress.com","type":"Secondary","score":"5.3","severity":"MEDIUM","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L","data":{"version":"3.1","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L","baseScore":5.3,"baseSeverity":"MEDIUM","attackVector":"NETWORK","attackComplexity":"LOW","privilegesRequired":"NONE","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"NONE","integrityImpact":"NONE","availabilityImpact":"LOW"}},{"version":"3.1","source":"CNA","type":"CVSS","score":"5.3","severity":"MEDIUM","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L","data":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"LOW","baseScore":5.3,"baseSeverity":"MEDIUM","confidentialityImpact":"NONE","integrityImpact":"NONE","privilegesRequired":"NONE","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L","version":"3.1"}}],"references":[{"url":"https://www.telerik.com/products/aspnet-ajax/documentation/knowledge-base/kb-security-rlb-xxe-injection-client-state-cve-2026-14865","name":"https://www.telerik.com/products/aspnet-ajax/documentation/knowledge-base/kb-security-rlb-xxe-injection-client-state-cve-2026-14865","refsource":"security@progress.com","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-14865","name":"CVE Program record","refsource":"CVE.ORG","tags":["canonical"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-14865","name":"NVD vulnerability detail","refsource":"NVD","tags":["canonical","analysis"]}],"affected":[{"source":"CNA","vendor":"Progress Software","product":"Telerik UI for ASP.NET AJAX","version":"affected 2009.1.314 2026.2.708 custom","platforms":[]}],"timeline":[],"solutions":[],"workarounds":[],"exploits":[],"credits":[{"source":"CNA","value":"Marcio Almeida of TantoSec","lang":"en"}],"nvd_cpes":[],"vendor_comments":[],"enrichments":{"kev":null,"epss":null,"legacy_qids":[]},"source_records":{"cve_program":{"containers":{"adp":[{"metrics":[{"other":{"content":{"id":"CVE-2026-14865","options":[{"Exploitation":"none"},{"Automatable":"yes"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","timestamp":"2026-07-22T19:09:57.174189Z","version":"2.0.3"},"type":"ssvc"}}],"providerMetadata":{"dateUpdated":"2026-07-22T19:10:08.695Z","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","shortName":"CISA-ADP"},"title":"CISA ADP Vulnrichment"}],"cna":{"affected":[{"defaultStatus":"unaffected","product":"Telerik UI for ASP.NET AJAX","vendor":"Progress Software","versions":[{"lessThan":"2026.2.708","status":"affected","version":"2009.1.314","versionType":"custom"}]}],"credits":[{"lang":"en","type":"finder","value":"Marcio Almeida of TantoSec"}],"descriptions":[{"lang":"en","supportingMedia":[{"base64":false,"type":"text/html","value":"<p>In Progress® Telerik® UI for AJAX prior to v2026.2.708, the internal LayoutBuilder control processes client-state XML without disabling DTD processing, allowing unauthenticated denial of service via recursive XML entity expansion.</p>"}],"value":"In Progress® Telerik® UI for AJAX prior to v2026.2.708, the internal LayoutBuilder control processes client-state XML without disabling DTD processing, allowing unauthenticated denial of service via recursive XML entity expansion."}],"impacts":[{"capecId":"CAPEC-197","descriptions":[{"lang":"en","value":"CAPEC-197 Exponential Data Expansion"}]}],"metrics":[{"cvssV3_1":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"LOW","baseScore":5.3,"baseSeverity":"MEDIUM","confidentialityImpact":"NONE","integrityImpact":"NONE","privilegesRequired":"NONE","scope":"UNCHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L","version":"3.1"},"format":"CVSS","scenarios":[{"lang":"en","value":"GENERAL"}]}],"problemTypes":[{"descriptions":[{"cweId":"CWE-776","description":"CWE-776 Improper Restriction of Recursive Entity References in DTDs ('XML Entity Expansion')","lang":"en","type":"CWE"}]}],"providerMetadata":{"dateUpdated":"2026-07-22T13:45:21.227Z","orgId":"f9fea0b6-671e-4eea-8fde-31911902ae05","shortName":"ProgressSoftware"},"references":[{"tags":["vendor-advisory"],"url":"https://www.telerik.com/products/aspnet-ajax/documentation/knowledge-base/kb-security-rlb-xxe-injection-client-state-cve-2026-14865"}],"source":{"discovery":"EXTERNAL"},"title":"XXE Denial of Service via RadLayoutBuilder Client State in Telerik UI for ASP.NET AJAX","x_generator":{"engine":"Vulnogram 0.2.0"}}},"cveMetadata":{"assignerOrgId":"f9fea0b6-671e-4eea-8fde-31911902ae05","assignerShortName":"ProgressSoftware","cveId":"CVE-2026-14865","datePublished":"2026-07-22T13:45:21.227Z","dateReserved":"2026-07-06T13:11:08.309Z","dateUpdated":"2026-07-22T19:10:08.695Z","state":"PUBLISHED"},"dataType":"CVE_RECORD","dataVersion":"5.2"},"nvd":{"publishedDate":"2026-07-22 14:17:15","lastModifiedDate":"2026-07-22 20:16:48","problem_types":["CWE-776","CWE-776 CWE-776 Improper Restriction of Recursive Entity References in DTDs ('XML Entity Expansion')"],"metrics":{"cvssMetricV31":[{"source":"security@progress.com","type":"Secondary","cvssData":{"version":"3.1","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L","baseScore":5.3,"baseSeverity":"MEDIUM","attackVector":"NETWORK","attackComplexity":"LOW","privilegesRequired":"NONE","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"NONE","integrityImpact":"NONE","availabilityImpact":"LOW"},"exploitabilityScore":3.9,"impactScore":1.4}],"ssvcV203":[{"source":"134c704f-9b21-4f2e-91b3-4a467353bcc0","ssvcData":{"timestamp":"2026-07-22T19:09:57.174189Z","id":"CVE-2026-14865","options":[{"exploitation":"none"},{"automatable":"yes"},{"technicalImpact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}]},"configurations":[]},"legacy_mitre":{"record":{"CveYear":"2026","CveId":"14865","Ordinal":"1","Title":"XXE Denial of Service via RadLayoutBuilder Client State in Teler","CVE":"CVE-2026-14865","Year":"2026"},"notes":[{"CveYear":"2026","CveId":"14865","Ordinal":"1","NoteData":"In Progress® Telerik® UI for AJAX prior to v2026.2.708, the internal LayoutBuilder control processes client-state XML without disabling DTD processing, allowing unauthenticated denial of service via recursive XML entity expansion.","Type":"Description","Title":"XXE Denial of Service via RadLayoutBuilder Client State in Teler"}]}}}