{"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": "2026-02-25T14:45:11.142Z"}, "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\u00ae Telerik\u00ae 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\u00ae Telerik\u00ae 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"}}}}

{}

{"cveTags": [], "descriptions": [{"lang": "en", "value": "In Progress\u00ae Telerik\u00ae 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."}], "id": "CVE-2026-2878", "lastModified": "2026-02-25T15:22:44.317", "metrics": {"cvssMetricV31": [{"cvssData": {"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"}, "exploitabilityScore": 1.6, "impactScore": 3.6, "source": "security@progress.com", "type": "Secondary"}]}, "published": "2026-02-25T15:20:54.293", "references": [{"source": "security@progress.com", "url": "https://www.telerik.com/products/aspnet-ajax/documentation/knowledge-base/kb-security-insufficient-entropy-cve-2026-2878"}], "sourceIdentifier": "security@progress.com", "vulnStatus": "Awaiting Analysis", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-331"}], "source": "security@progress.com", "type": "Primary"}]}

{}

{}