# CVE-2020-6938: Information disclosure in Tableau

> An attacker can access sensitive information stored in log files of Tableau Server, potentially exposing confidential data.

- **Severity:** High 7.5 (`CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 8 Jul 2020
- **Updated:** 4 Aug 2024
- **Also known as:** GHSA-f9qf-hq7g-hp35

## What is CVE-2020-6938?

CVE-2020-6938 is a high-severity vulnerability in Tableau, published on 8 Jul 2020. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

A sensitive information disclosure vulnerability in Tableau Server 10.5, 2018.x, 2019.x, 2020.x released before June 26, 2020, could allow access to sensitive information in log files.

Weakness: CWE-532 (Insertion of Sensitive Information into Log File)

## Which versions are affected by CVE-2020-6938?

It affects 1 product.


Products: Tableau Tableau Server.

## How do I fix CVE-2020-6938?

No fix has been published for CVE-2020-6938 yet. Limit exposure of the affected software until one is available.

## Is CVE-2020-6938 being exploited?

There is no known exploitation of CVE-2020-6938 in the wild and no public exploit code.

## Other vulnerabilities in Tableau

- [CVE-2022-22128](https://insights.sbomify.com/CVE-2022-22128/): Path traversal in Tableau Server (critical 9.8)
- [CVE-2020-6939](https://insights.sbomify.com/CVE-2020-6939/): Missing authorization in Tableau Server (critical 9.8)
- [CVE-2025-26496](https://insights.sbomify.com/CVE-2025-26496/): Code injection in Tableau Server, Tableau Desktop (critical 9.3)
- [CVE-2025-52451](https://insights.sbomify.com/CVE-2025-52451/): Path traversal in Tableau Server (high 8.5)
- [CVE-2025-52449](https://insights.sbomify.com/CVE-2025-52449/): File upload in Tableau Server (high 8.5)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2020-6938 and fix it if it is affected.

What it is: CVE-2020-6938 is a high-severity vulnerability in Tableau, published on 8 Jul 2020. An attacker can exploit it over the internet without logging in, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2020-6938 in the wild and no public exploit code.

Affected product: Tableau. 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-2020-6938/ (Markdown: https://insights.sbomify.com/CVE-2020-6938/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2020-6938
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2020-6938
- OSV: https://osv.dev/vulnerability/CVE-2020-6938

---
From sbomify Insights: https://insights.sbomify.com/CVE-2020-6938/
Summaries are generated and may contain mistakes; the official description above is the record.