# CVE-2026-35484: text-generation-webui has a Path Traversal in load_preset() — .yaml file read without authentication

> Unauthenticated attackers can read arbitrary YAML files via path traversal, exposing sensitive credentials and configuration data.

- **Severity:** Medium 5.3 (`CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/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:** 7 Apr 2026
- **Updated:** 8 Apr 2026
- **Also known as:** GHSA-w3cv-4447-5hf5

## What is CVE-2026-35484?

CVE-2026-35484 is a medium-severity path traversal vulnerability in oobabooga text-generation-webui, published on 7 Apr 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

text-generation-webui is an open-source web interface for running Large Language Models. Prior to 4.3, an unauthenticated path traversal vulnerability in load_preset() allows reading any .yaml file on the server filesystem. The parsed YAML key-value pairs (including passwords, API keys, connection strings) are returned in the API response. This vulnerability is fixed in 4.3.

Weakness: CWE-22 (Improper Limitation of a Pathname to a Restricted Directory)

## Which versions are affected by CVE-2026-35484?

It affects 1 product.


Products: Oobabooga Textgen.

## How do I fix CVE-2026-35484?

No fix has been published for CVE-2026-35484 yet. Limit exposure of the affected software until one is available.

## Is CVE-2026-35484 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-35484 exists.

## Other vulnerabilities in oobabooga text-generation-webui

- [CVE-2026-35050](https://insights.sbomify.com/CVE-2026-35050/): Path traversal in text-generation-webui (critical 9.1)
- [CVE-2026-35485](https://insights.sbomify.com/CVE-2026-35485/): text-generation-webui has a Path Traversal in load_grammar() — arbitrary file read without authentication (high 7.5)
- [CVE-2026-35483](https://insights.sbomify.com/CVE-2026-35483/): text-generation-webui has a Path Traversal in load_template() — .jinja/.yaml/.yml file read without authentication (medium 5.3)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2026-35484 and fix it if it is affected.

What it is: CVE-2026-35484 is a medium-severity path traversal vulnerability in oobabooga text-generation-webui, published on 7 Apr 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Exploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-35484 exists.

Affected product: oobabooga text-generation-webui. 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-2026-35484/ (Markdown: https://insights.sbomify.com/CVE-2026-35484/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2026-35484
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-35484
- OSV: https://osv.dev/vulnerability/CVE-2026-35484

---
From sbomify Insights: https://insights.sbomify.com/CVE-2026-35484/
Summaries are generated and may contain mistakes; the official description above is the record.