CVE-2026-69101
Received Received - Intake

XXE Injection in Datavane TIS v5.0.0

Publication date: 2026-08-14

Last updated on: 2026-08-14

Assigner: VulnCheck

Description
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.

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Meta Information

Published
2026-08-14
Last Modified
2026-08-14
Generated
2026-08-14
AI Q&A
2026-08-14
EPSS Evaluated
N/A
NVD
CVE-2026-69101
EUVD
EUVD-2026-58668

Affected Vendors & Products

Showing 2 associated CPEs
Vendor Product Version / Range
datavane tis 5.0.0
datavane tis to 5.0.0 (inc)

Helpful Resources

Exploitability

CWE
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KEV
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CWE ID Description
CWE-611 The product processes an XML document that can contain XML entities with URIs that resolve to documents outside of the intended sphere of control, causing the product to embed incorrect documents into its output.

Attack-Flow Graph

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Executive Summary

CVE-2026-69101 is an XML External Entity (XXE) injection vulnerability in Datavane TIS v5.0.0. It allows authenticated attackers to submit malicious XML input to the doEditWorkflow endpoint. The XML is processed by an unhardened DocumentBuilderFactory that permits external entities and DTD loading. This enables Server-Side Request Forgery (SSRF) and out-of-band file exfiltration by referencing external DTDs or URLs.

Detection Guidance

To detect this XXE vulnerability in Datavane TIS v5.0.0, monitor network traffic for outbound HTTP requests from the TIS server to unexpected external destinations. Check logs for malformed XML parsing errors or unusual file access patterns. Use tools like Wireshark to inspect HTTP requests originating from the TIS process. Validate if the doEditWorkflow endpoint accepts XML input without proper validation.

Impact Analysis

An attacker could exploit this to read sensitive files on the server, such as configuration files or Derby database credentials. They could also force the server to make outbound HTTP requests to their infrastructure, potentially leading to further attacks or data theft. The vulnerability is accessible even to low-privilege users in some deployments.

Compliance Impact

This vulnerability could lead to unauthorized access to sensitive data, such as database credentials or configuration files, which may violate compliance requirements under GDPR (data protection) or HIPAA (healthcare data privacy). Exfiltration of such data could result in regulatory penalties or breaches of confidentiality.

Mitigation Strategies

Immediately upgrade to a patched version of TIS that includes the security fixes for the doEditWorkflow endpoint and XML parser hardening. If upgrading is not possible, apply the patch manually by adding the @Func(DATAFLOW_UPDATE) annotation to doEditWorkflow and hardening the DocumentBuilderFactory in OfflineManager.isXmlValid to disable DOCTYPE, external entities, and DTD loading.

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