CVE-2026-118037— Uncontrolled Resource Consumption in Telerik Document Processing Libraries RadSpreadProcessing and RadSpreadStreamProcessing

Quick assessment

Affected

Progress Software Telerik Document Processing Libraries

Exploitation

No confirmed in-the-wild exploitation; assess based on exposure

Recommended action

Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

在 2026.3.1027 版本之前的 In Progress® Telerik® 文档处理库中，RadSpreadProcessing 和 RadSpreadStreamProcessing 组件存在不受控的递归、无限循环、未检查的循环条件以及低效的正则表达式漏洞。这些漏洞允许未认证的攻击者通过构造恶意的 XLSX 或 XLS 工作簿或公式，导致宿主进程终止或挂起。

CVSS 7.5 · High Updated Oct 28, 2026

Possible ATT&CK Techniques 1 AI

T1190 · Exploit Public-Facing Application

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Vulnerability Information

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Vulnerability Title

Uncontrolled Resource Consumption in Telerik Document Processing Libraries RadSpreadProcessing and RadSpreadStreamProcessing

Source: CVE Program / CVE List V5

Vulnerability Description

In Progress® Telerik® Document Processing Libraries prior to version 2026.3.1027, uncontrolled recursion, infinite loop, unchecked loop condition and inefficient regular expression vulnerabilities in RadSpreadProcessing and RadSpreadStreamProcessing allow an unauthenticated attacker to terminate or hang the host process via a crafted XLSX or XLS workbook or formula.

Source: CVE Program / CVE List V5

CVSS Information

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Source: CVE Program / CVE List V5

Vulnerability Type

未经控制的递归

Source: CVE Program / CVE List V5

Affected Products

Vendor	Product	Affected Versions	CPE	Subscribe
Progress Software	Telerik Document Processing Libraries	0 ~ 2026.3.1027	-

II. Public POCs for CVE-2026-118037

#	POC Description	Source Link	Shenlong Link

AI-Generated POC Premium

No public POC found.

III. Intelligence Information for CVE-2026-118037

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Other References for CVE-2026-118037 (1)

https://docs.telerik.com/devtools/document-processing/knowledge-base/kb-security-uncontrolled-resource-consumption-spreadprocessing-cve-2026-118037 vendor-advisory

https://www.cve.org/CVERecord?id=CVE-2026-118037

Same Patch Batch · Progress Software · 2026-10-28 · 6 CVEs total

CVE-2026-118040	7.5 HIGH	Improper Signature and Certificate Validation in Telerik Document Processing Libraries Rad
CVE-2026-118036	7.5 HIGH	Uncontrolled Resource Consumption in Telerik Document Processing Libraries RadPdfProcessin
CVE-2026-118035	7.5 HIGH	Uncontrolled Resource Consumption in Telerik Document Processing Libraries RadWordsProcess
CVE-2026-118039	7.5 HIGH	XML External Entity Reference in Telerik Document Processing Libraries SVG Image Processin
CVE-2026-118038	7.1 HIGH	Path Traversal in Telerik Document Processing Libraries AI Agent Tools

IV. Related Vulnerabilities

Same product: Telerik Document Processing Libraries

Same vendor: Progress Software

Same weakness: CWE-674