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CVE-2026-13183— RadAsyncUpload Upload Metadata Timing Oracle Vulnerability in Telerik UI for ASP.NET AJAX

CVSS 7.5 · High EPSS 0.30% · P22

Possible ATT&CK Techniques 1AI

T1213 · Data from Information Repositories

Affected Version Matrix 1

VendorProductVersion RangeStatus
Progress SoftwareTelerik UI for ASP.NET AJAX2010.1.309< 2026.2.708affected
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I. Basic Information for CVE-2026-13183

Vulnerability Information
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Vulnerability Title
RadAsyncUpload Upload Metadata Timing Oracle Vulnerability in Telerik UI for ASP.NET AJAX
Source: CVE Program / CVE List V5
Vulnerability Description
In Progress® Telerik® UI for AJAX prior to v2026.2.708, RadAsyncUpload upload metadata processing may leak cryptographic validity through measurable timing differences, enabling remote attackers to recover protected metadata values.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
通过时间差异性导致的信息暴露
Source: CVE Program / CVE List V5
Vulnerability Title
Progress Software Progress Telerik UI for AJAX 侧信道信息泄露漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Progress Telerik UI for AJAX是Progress Software公司的一套Web界面组件库。 Progress Software Progress Telerik UI for AJAX 2026.2.708之前版本存在侧信道信息泄露漏洞，该漏洞源于RadAsyncUpload上传元数据处理可能通过可测量的时序差异泄露密码有效性，使远程攻击者能够恢复受保护的元数据值。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

VendorProductAffected VersionsCPESubscribe
Progress SoftwareTelerik UI for ASP.NET AJAX 2010.1.309 ~ 2026.2.708 -

II. Public POCs for CVE-2026-13183

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III. Intelligence Information for CVE-2026-13183

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Vendor Advisories for CVE-2026-13183 (1)

Same Patch Batch · Progress Software · 2026-07-22 · 13 CVEs total

CVE-2026-131858.1 HIGHPersistenceFramework Cookie Deserialization Vulnerability in Telerik UI for ASP.NET AJAX
CVE-2026-131878.1 HIGHDialogHandler Provider Type Tampering Vulnerability in Telerik UI for ASP.NET AJAX
CVE-2026-131818.1 HIGHRadAsyncUpload AsyncUploadTypeName Type Resolution Vulnerability in Telerik UI for ASP.NET
CVE-2026-131868.1 HIGHAppDataStorageProvider Path Traversal Deserialization Vulnerability in Telerik UI for ASP.
CVE-2026-131908.1 HIGHPersistenceFramework Unsafe Type Resolution Vulnerability in Telerik UI for ASP.NET AJAX
CVE-2026-131897.5 HIGHSpellChecker DictionaryLanguage Path Traversal Vulnerability in Telerik UI for ASP.NET AJA
CVE-2026-131847.5 HIGHRadAsyncUpload Default HMAC Key Fallback Vulnerability in Telerik UI for ASP.NET AJAX
CVE-2026-131827.5 HIGHRadAsyncUpload Client-State Decrypt-vs-Parse Oracle Vulnerability in Telerik UI for ASP.NE
CVE-2026-149326.5 MEDIUMUnauthenticated File Read and Deletion via Hardcoded Encryption Key in RadChart
CVE-2026-131926.5 MEDIUMRadEditor PDF Export SSRF Vulnerability in Telerik UI for ASP.NET AJAX
CVE-2026-131885.9 MEDIUMDialogHandler Parameters Tampering Vulnerability in Telerik UI for ASP.NET AJAX
CVE-2026-148655.3 MEDIUMXXE Denial of Service via RadLayoutBuilder Client State in Telerik UI for ASP.NET AJAX

IV. Related Vulnerabilities

Same product: Telerik UI for ASP.NET AJAX
Same vendor: Progress Software
Same weakness: CWE-208

V. Comments for CVE-2026-13183

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