{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-2878","assignerOrgId":"f9fea0b6-671e-4eea-8fde-31911902ae05","state":"PUBLISHED","assignerShortName":"ProgressSoftware","dateReserved":"2026-02-20T16:20:51.770Z","datePublished":"2026-02-25T14:45:11.142Z","dateUpdated":"2026-02-27T17:06:16.616Z"},"containers":{"cna":{"affected":[{"defaultStatus":"unaffected","product":"Telerik UI for ASP.NET AJAX","vendor":"Progress Software","versions":[{"lessThan":"2026.1.225","status":"affected","version":"2011.2.712","versionType":"custom"}]}],"credits":[{"lang":"en","type":"finder","value":"Monetary Authority of Singapore"}],"descriptions":[{"lang":"en","supportingMedia":[{"base64":false,"type":"text/html","value":"In Progress® Telerik® UI for AJAX, versions prior to 2026.1.225, an insufficient entropy vulnerability exists in RadAsyncUpload, where a predictable temporary identifier, based on timestamp and filename, can enable collisions and file content tampering."}],"value":"In Progress® Telerik® UI for AJAX, versions prior to 2026.1.225, an insufficient entropy vulnerability exists in RadAsyncUpload, where a predictable temporary identifier, based on timestamp and filename, can enable collisions and file content tampering."}],"impacts":[{"capecId":"CAPEC-149","descriptions":[{"lang":"en","value":"CAPEC-149 Explore for Predictable Temporary File Names"}]},{"capecId":"CAPEC-26","descriptions":[{"lang":"en","value":"CAPEC-26 Leveraging Race Conditions"}]}],"metrics":[{"cvssV3_1":{"attackComplexity":"HIGH","attackVector":"NETWORK","availabilityImpact":"NONE","baseScore":5.3,"baseSeverity":"MEDIUM","confidentialityImpact":"NONE","integrityImpact":"HIGH","privilegesRequired":"NONE","scope":"UNCHANGED","userInteraction":"REQUIRED","vectorString":"CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:U/C:N/I:H/A:N","version":"3.1"},"format":"CVSS","scenarios":[{"lang":"en","value":"GENERAL"}]}],"problemTypes":[{"descriptions":[{"cweId":"CWE-331","description":"CWE-331 Insufficient Entropy","lang":"en","type":"CWE"}]}],"providerMetadata":{"orgId":"f9fea0b6-671e-4eea-8fde-31911902ae05","shortName":"ProgressSoftware","dateUpdated":"2026-02-25T14:45:11.142Z"},"references":[{"tags":["vendor-advisory"],"url":"https://www.telerik.com/products/aspnet-ajax/documentation/knowledge-base/kb-security-insufficient-entropy-cve-2026-2878"}],"source":{"discovery":"EXTERNAL"},"title":"Insufficient Entropy Vulnerability in Telerik UI for ASP.NET AJAX","x_generator":{"engine":"Vulnogram 0.2.0"}},"adp":[{"metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-02-27T17:06:09.729072Z","id":"CVE-2026-2878","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"title":"CISA ADP Vulnrichment","providerMetadata":{"orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","shortName":"CISA-ADP","dateUpdated":"2026-02-27T17:06:16.616Z"}}]}}