# CVE-2018-12564: Path traversal in n/a

> An attacker can force the server to return any readable YAML file by forging an HTTP request via the submit page URL support.

- **Severity:** Medium 6.5 (`CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N`)
- **Exploited in the wild:** Not known
- **Login needed:** Any signed-in user
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** Yes
- **Published:** 19 Jun 2018
- **Updated:** 5 Aug 2024
- **Also known as:** DEBIAN-CVE-2018-12564, DLA-1404-1, GHSA-jhr6-gv2v-7888

## What is CVE-2018-12564?

CVE-2018-12564 is a medium-severity path traversal vulnerability in Debian Debian Linux, published on 19 Jun 2018. Any signed-in user can exploit it over the network, with no action from the victim.

### Official description

An issue was discovered in Linaro LAVA before 2018.5.post1. Because of support for URLs in the submit page, a user can forge an HTTP request that will force lava-server-gunicorn to return any file on the server that is readable by lavaserver and valid yaml.

Weakness: CWE-20 (Improper Input Validation)

## Which versions are affected by CVE-2018-12564?

It affects 2 products.


Products: Debian Debian Linux, Linaro Lava.

## How do I fix CVE-2018-12564?

Upgrade to a fixed version.

## Is CVE-2018-12564 being exploited?

There is no known exploitation of CVE-2018-12564 in the wild and no public exploit code.

## Other vulnerabilities in Debian Debian Linux

- [CVE-2015-3306](https://insights.sbomify.com/CVE-2015-3306/): ProFTPD Improper Access Control (critical 10.0, exploited in the wild)
- [CVE-2025-49113](https://insights.sbomify.com/CVE-2025-49113/): RoundCube Webmail Deserialization of Untrusted Data (critical 9.9, exploited in the wild)
- [CVE-2026-24061](https://insights.sbomify.com/CVE-2026-24061/): GNU InetUtils Argument Injection (critical 9.8, exploited in the wild)
- [CVE-2025-39682](https://insights.sbomify.com/CVE-2025-39682/): Linux Kernel Improper Check for Unusual or Exceptional Conditions (critical 9.8, exploited in the wild)
- [CVE-2024-9680](https://insights.sbomify.com/CVE-2024-9680/): Mozilla Firefox Use-After-Free (critical 9.8, exploited in the wild)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2018-12564 and fix it if it is affected.

What it is: CVE-2018-12564 is a medium-severity path traversal vulnerability in Debian Debian Linux, published on 19 Jun 2018. Any signed-in user can exploit it over the network, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2018-12564 in the wild and no public exploit code.

Affected product: Debian Debian Linux. 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-2018-12564/ (Markdown: https://insights.sbomify.com/CVE-2018-12564/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2018-12564
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2018-12564
- OSV: https://osv.dev/vulnerability/CVE-2018-12564

---
From sbomify Insights: https://insights.sbomify.com/CVE-2018-12564/
Summaries are generated and may contain mistakes; the official description above is the record.