Vulnerability · Published Oct 28, 2026 · Assigned by ProgressSoftware

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

High 7.5

In plain English

A high-severity infinite loop in Telerik Document Processing Libraries from Progress Software. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.3% (higher than 20% of all known vulnerabilities).

Severity (CVSS 3.1)7.5High

Exploit odds (30 days)0.3%top 80.1% of all CVEs

Exploited in the wildNo reportsnot in CISA KEV

Attack toolingNoneno public tooling known

Official 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.

Affected products (as reported)

Vendor	Product	Versions
Progress Software	Telerik Document Processing Libraries	0 – before 2026.3.1027

Weakness: CWE-674, CWE-835, CWE-606, CWE-1333 · Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

References

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