---
title: "CVE-2026-118039: In Progress Telerik Document Processing Libraries - XML External Entity Injection"
description: "In Progress Telerik Document Processing Libraries < 2026.3.1027 contain an XML external entity injection caused by processing crafted nested embedded SVG images, letting unauthenticated attackers read local files on the server during image processing or PDF export."
url: https://panop.io/threat-heartbeat/CVE-2026-118039/
---

# CVE-2026-118039 In Progress Telerik Document Processing Libraries - XML External Entity Injection

In Progress Telerik Document Processing Libraries < 2026.3.1027 contain an XML external entity injection caused by processing crafted nested embedded SVG images, letting unauthenticated attackers read local files on the server during image processing or PDF export.

CVSS base score 7.5 /10

High

CISA KEV

Not listed

Public exploit

None known

Authentication

Not required

[View the NVD record ↗](https://nvd.nist.gov/vuln/detail/CVE-2026-118039)

## Details

Type

XML External Entity Injection

Impact

File System Read, Information Disclosure

CVSS vector

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

Published

28 October 2026

Updated

29 October 2026

Weakness

[CWE-611](https://cwe.mitre.org/data/definitions/611.html)

## Vendor fix

Update to version 2026.3.1027 or later.

Patching closes this CVE. It does not tell you which of your systems run the affected version, or what else is exposed alongside them.

## References

- [https://nvd.nist.gov/vuln/detail/CVE-2026-118039](https://nvd.nist.gov/vuln/detail/CVE-2026-118039)
- [https://docs.telerik.com/devtools/document-processing/knowledge-base/kb-security-xml-external-entity-reference-cve-2026-118039](https://docs.telerik.com/devtools/document-processing/knowledge-base/kb-security-xml-external-entity-reference-cve-2026-118039)

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## What this record can't tell you

- Whether you run the affected software, and where
- Whether an attacker can actually reach and exploit it
- The misconfigurations that never get a CVE number
- What it would cost the business, ranked into what to fix first

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