CVE-2026-9056: Security fix for Qlik Talend Administration Center cross-site scripting vulnerability

Severity: medium (CVSS 5.4 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.2% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2026-05-20 · updated 2026-07-23

Description

A stored cross-site scripting vulnerability has been found in the Talend Administration Center. An attacker with permission to manage servers can store a XSS payload that can be triggered by a different user.

Affected products

Talend Administration Center: from 8.0 before Patch_20260123_QTAC-1883 (cumulative patch)_R2026-01_v1-8.0.1 — fixed in Patch_20260123_QTAC-1883 (cumulative patch)_R2026-01_v1-8.0.1

How to fix

Upgrade to a fixed version: Talend Administration Center Patch_20260123_QTAC-1883 (cumulative patch)_R2026-01_v1-8.0.1. Check the vendor advisory for mitigations.

References

https://community.qlik.com/t5/Official-Support-Articles/Security-fix-for-Qlik-Talend-Administration-Center-cross-site/ta-p/2548522

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