What is CVE-2026-118039?

CVE-2026-118039 is a high-severity vulnerability in Progress Software Telerik Document Processing Libraries, classified under Improper Restriction of XML External Entity Reference (XXE). CVSS score: 7.5/10. Published 2026-10-28.

How severe is CVE-2026-118039?

High severity. CVSS v3 base score is 7.5 out of 10.

XXE in Progress Software Telerik Document Processing Libraries

CVE-2026-118039

In Progress® Telerik® Document Processing Libraries prior to version 2026.3.1027, an XML external entity reference vulnerability in SVG image processing allows an unauthenticated attacker to read local files on the server via a crafted SVG image with a nested embedded SVG, when the image is processed or exported to PDF.

Vulnerability class: XXE (XML External Entity)

Published 2026-10-28 · last modified 2026-10-28.

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N.

EPSS exploit prediction

No EPSS score from FIRST.org yet. New CVEs usually get one within a few days; no score means no signal yet, not low risk. How EPSS works.

Affected products

Progress Software Telerik Document Processing Libraries

Weakness classification (CWE)

CWE-611 — Improper Restriction of XML External Entity Reference (XXE)

References

docs.telerik.com/devtools/document-processing/knowledge-base/kb-security-xml-ex… (vendor-advisory)

Frequently asked questions

What is CVE-2026-118039?: CVE-2026-118039 is a high-severity vulnerability in Progress Software Telerik Document Processing Libraries, classified under Improper Restriction of XML External Entity Reference (XXE). CVSS score: 7.5/10. Published 2026-10-28.
How severe is CVE-2026-118039?: High severity. CVSS v3 base score is 7.5 out of 10.