# CVE-2026-118038: Progress Telerik Document Processing Libraries path traversal in AI agent tools

Source: https://junglewise.ai/threats/cve-2026-118038-in-progress-telerik-document-processing-libraries-prior-to  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-10-28. Updated: 2026-10-28  
License: CC BY 4.0 with a link back

CVE-2026-118038 · Severity: high · CVSS 7.1 · Published 2026-10-28

Progress Telerik Document Processing Libraries are used to convert and merge documents in business applications. A path traversal flaw in the AI agent tools allows authenticated users with basic privileges to read sensitive files anywhere on the server and overwrite files they have access to, enabling data theft or system compromise.

Technologies: [Progress Telerik Document Processing Libraries](https://junglewise.ai/threats/technologies/telerik-document-processing-libraries). Vendors: [Progress](https://junglewise.ai/threats/vendors/progress).

## Quick answers

**Is CVE-2026-118038 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-118038 being exploited in the wild.

**How severe is CVE-2026-118038?** High severity, with a CVSS score of 7.1, published 28 October 2026.

**Which products and versions are affected?** Progress Telerik Document Processing Libraries 2026.1.210 to 2026.3.1026.

**Is there a fix for CVE-2026-118038?** Yes: fixed in 2026.3.1027. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.

**How is CVE-2026-118038 attacked?** It is attacked over the network.

**Am I affected by CVE-2026-118038?** Check whether you run Progress Telerik Document Processing Libraries at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

## How to fix

- Fixed in 2026.3.1027

## Technical details

The Telerik.Documents.AI.AgentTools.Conversion component does not properly sanitize tool arguments, allowing authenticated attackers to use relative file paths (e.g., ../) to traverse outside the configured output directory. Exploitation requires network access and valid (low-privilege) authentication credentials; the attacker can read arbitrary files and overwrite writable files via unsanitized path resolution against the process working directory.

## Affected products

- Progress Telerik Document Processing Libraries 2026.1.210 to 2026.3.1026

## Timeline

- 2026-10-28: disclosed

## References

- [https://docs.telerik.com/devtools/document-processing/knowledge-base/kb-security-path-traversal-cve-2026-118038](https://docs.telerik.com/devtools/document-processing/knowledge-base/kb-security-path-traversal-cve-2026-118038)

## Related threats

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