---
id: CVE-2026-115740
title: >-
  Server side request forgery vulnerability exists in the DLP on-prem extensions
  version 11.13.1 and earlier allows the file Prefix parameter in the
  OpenEventEvidenceFile.do endpoint accepts arbitrary UNC paths without
  validation
summary: >-
  Server side request forgery vulnerability exists in the DLP on-prem extensions
  version 11.13.1 and earlier allows the file Prefix parameter in the
  OpenEventEvidenceFile.do endpoint accepts arbitrary UNC paths without
  validation. The serv…
severity: medium
cvss: 5.3
cvssVector: 'CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N'
cvssSource: cna
cwe:
  - CWE-918
vendor: Trellix
product: DLP on-prem extensions
affected:
  - dlp_on-prem_extensions 11.13.1 and earlier
ssvc:
  exploitation: none
  automatable: 'no'
  technicalImpact: partial
  timestamp: '2026-11-05T17:08:29.386652Z'
published: '2026-11-05'
updated: '2026-11-05'
sourceUpdated: '2026-11-05T17:08:34.529Z'
source: CVEORG
sourceUrl: 'https://www.cve.org/CVERecord?id=CVE-2026-115740'
references:
  - url: 'https://support.trellix.com/s/article/000015949'
tags:
  - cve.org
ingestedAt: '2026-11-05T22:38:31.424Z'
---

## Overview

Server side request forgery vulnerability exists in the DLP on-prem extensions version 11.13.1 and earlier allows the file Prefix parameter in the OpenEventEvidenceFile.do endpoint accepts arbitrary UNC paths without validation. The server-side code attempts to open the specified file path, causing Windows to resolve the hostname and initiate SMB authentication to the attacker-controlled host.

## Affected

- `dlp_on-prem_extensions 11.13.1 and earlier`

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.