XXE in Datavane Tis
CVE-2026-69101
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.
Vulnerability class: XXE (XML External Entity)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 7.7 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N.
EPSS exploit prediction
EPSS: 0.004 (35.0th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 35th percentile — 35.0% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.003 · newest: 0.004 · change: +0.001
Affected products
- Datavane Tis — versions 0
Weakness classification (CWE)
References
- github.com/datavane/tis/issues/496 (issue-tracking)
- github.com/datavane/tis (product)
- github.com/datavane/tis/commit/2a84a1b84218a303e3e0a4823023363d5a7abfa1 (patch)
- www.vulncheck.com/advisories/datavane-tis-xxe-injection-via-doeditworkflow-endp… (third-party-advisory)
Frequently asked questions
- What is CVE-2026-69101?
- CVE-2026-69101 is a high-severity vulnerability in Datavane Tis, classified under Improper Restriction of XML External Entity Reference (XXE). CVSS score: 7.7/10. Published 2026-08-14.
- How severe is CVE-2026-69101?
- High severity. CVSS v3 base score is 7.7 out of 10.