# CVE-2020-14366: Path Traversal

> Attackers can read specific files via path traversal in Keycloak's resources endpoint using URL-encoded segments, exposing limited folder hierarchies.

- **Severity:** Medium 6.8 (`CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/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:** Yes
- **Published:** 9 Nov 2020
- **Updated:** 4 Aug 2024
- **Also known as:** GHSA-cp67-8w3w-6h9c

## What is CVE-2020-14366?

CVE-2020-14366 is a medium-severity path traversal vulnerability in Redhat Keycloak, published on 9 Nov 2020. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

A vulnerability was found in keycloak, where path traversal using URL-encoded path segments in the request is possible because the resources endpoint applies a transformation of the url path to the file path. Only few specific folder hierarchies can be exposed by this flaw

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

## Which versions are affected by CVE-2020-14366?

2 open source packages ship an affected version, including org.keycloak:keycloak-parent. It affects 1 product.


| Package | Ecosystem | Affected | Fixed in |
| --- | --- | --- | --- |
| `org.keycloak:keycloak-parent` | Maven | All versions | 12.0.0 |
| `org.keycloak:keycloak-parent` | Maven | All versions | 12.0.0 |

Products: Redhat Keycloak.

## How do I fix CVE-2020-14366?

Upgrade org.keycloak:keycloak-parent to 12.0.0 or later.

## Is CVE-2020-14366 being exploited?

There is no known exploitation of CVE-2020-14366 in the wild and no public exploit code.

## Other vulnerabilities in Redhat Keycloak

- [CVE-2022-4361](https://insights.sbomify.com/CVE-2022-4361/): Keycloak vulnerable to cross-site scripting when validating URI-schemes on SAML and OIDC (critical 10.0)
- [CVE-2022-1245](https://insights.sbomify.com/CVE-2022-1245/): Keycloak vulnerable to privilege escalation on Token Exchange feature (critical 9.8)
- [CVE-2021-20195](https://insights.sbomify.com/CVE-2021-20195/): keycloak Self Stored Cross-site Scripting vulnerability (critical 9.6)
- [CVE-2019-14910](https://insights.sbomify.com/CVE-2019-14910/): Keycloak Authentication Error (critical 9.3)
- [CVE-2019-14909](https://insights.sbomify.com/CVE-2019-14909/): Keycloak Authentication Error (critical 9.3)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2020-14366 and fix it if it is affected.

What it is: CVE-2020-14366 is a medium-severity path traversal vulnerability in Redhat Keycloak, published on 9 Nov 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-2020-14366 in the wild and no public exploit code.

Affected packages and fixed versions:
- org.keycloak:keycloak-parent (Maven): affected all versions; fixed in 12.0.0
- org.keycloak:keycloak-parent (Maven): affected all versions; fixed in 12.0.0

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-2020-14366/ (Markdown: https://insights.sbomify.com/CVE-2020-14366/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2020-14366
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2020-14366
- OSV: https://osv.dev/vulnerability/CVE-2020-14366

---
From sbomify Insights: https://insights.sbomify.com/CVE-2020-14366/
Summaries are generated and may contain mistakes; the official description above is the record.