---
id: CVE-2026-105409
title: >-
  A Stored Cross-site Scripting (XSS) vulnerability affecting Tuleap Enterprise
  Edition from 17.0 through 17.5 could allow an attacker to execute arbitrary
  script code in user's browser session.
summary: >-
  A Stored Cross-site Scripting (XSS) vulnerability affecting Tuleap Enterprise
  Edition from 17.0 through 17.5 could allow an attacker to execute arbitrary
  script code in user's browser session.
severity: high
cvss: 8.7
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:N'
cwe:
  - CWE-79
vendor: Dassault Systèmes
product: Tuleap Enterprise Edition
affected:
  - tuleap_enterprise_edition >= 17.0-1 <= 17.0-41
  - tuleap_enterprise_edition >= 17.5-1 <= 17.5-32
published: '2026-10-12'
updated: '2026-10-15'
sourceUpdated: '2026-10-15T19:17:15.910'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-105409'
references:
  - url: >-
      https://www.3ds.com/trust-center/security/security-advisories/cve-2026-105409
    label: 3DS.Information-Security@3ds.com
tags:
  - nvd
  - cve.org
ssvc:
  exploitation: none
  automatable: 'no'
  technicalImpact: total
  timestamp: '2026-10-15T17:57:48.421425Z'
epss: 0.00203
epssPercentile: 0.10188
ingestedAt: '2026-10-12T14:50:34.104Z'
---

## Overview

A Stored Cross-site Scripting (XSS) vulnerability affecting Tuleap Enterprise Edition from 17.0 through 17.5 could allow an attacker to execute arbitrary script code in user's browser session.

## Remediation

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