CVE-2026-69101: Datavane Tis

High severity, CVSS 7.7. EPSS: 0.4% chance of exploitation in the next 30 days.

Datavane TIS v5.0.0 contains an XML external entity (XXE) injection vulnerability that allows authenticated attackers to perform server-side request forgery and out-of-band file exfiltration by supplying a crafted taskScript payload to the doEditWorkflow endpoint, which processes XML through an unhardened DocumentBuilderFactory with external entities and DTD loading enabled. Attackers can send a malicious XML document containing an external DTD reference to the edit_workflow action, causing the server to issue outbound HTTP requests to attacker-controlled infrastructure and exfiltrate local files readable by the TIS process user, including configuration files and Derby database credentials.

Affected products

• Datavane Tis: up to and including 5.0.0

Published 2026-08-14. Last modified 2026-09-24.