# CVE-2026-69101: Datavane TIS v5.0.0 XXE Injection via doEditWorkflow Endpoint

> Authenticated attackers can exploit XXE in Datavane TIS to exfiltrate local files and perform SSRF via the doEditWorkflow endpoint.

- **Severity:** High 8.3 (`CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:H/SI:N/SA:N`)
- **Exploited in the wild:** Not known
- **Login needed:** Any signed-in user
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 14 Aug 2026
- **Updated:** 24 Sep 2026
- **Also known as:** GHSA-pfrg-4vg3-g532

## What is CVE-2026-69101?

CVE-2026-69101 is a high-severity vulnerability in datavane tis, published on 14 Aug 2026. Any signed-in user can exploit it over the network, with no action from the victim.

### Official 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.

Weakness: CWE-611 (Improper Restriction of XML External Entity Reference)

## Which versions are affected by CVE-2026-69101?


## How do I fix CVE-2026-69101?

No fix has been published for CVE-2026-69101 yet. Limit exposure of the affected software until one is available.

## Is CVE-2026-69101 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-69101 exists.

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2026-69101 and fix it if it is affected.

What it is: CVE-2026-69101 is a high-severity vulnerability in datavane tis, published on 14 Aug 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Exploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-69101 exists.

Affected product: datavane tis. No package-level version data is available, so check the vendor advisory linked from the reference page.

Task:
1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.
2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.
3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.
4. Run the tests and summarise what changed and why.
5. If nothing in the project is affected, say so and change nothing.

Reference: https://insights.sbomify.com/CVE-2026-69101/ (Markdown: https://insights.sbomify.com/CVE-2026-69101/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2026-69101
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-69101
- OSV: https://osv.dev/vulnerability/CVE-2026-69101

---
From sbomify Insights: https://insights.sbomify.com/CVE-2026-69101/
Summaries are generated and may contain mistakes; the official description above is the record.