# CVE-2020-27816: Open redirect in openshift-logging/console

> Attackers can redirect users to arbitrary URLs by manipulating Kibana logging resources, potentially leading to phishing or data exposure in OpenShift environments.

- **Severity:** Medium 6.1 (`CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:L/I:L/A:N`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** A user has to click or open something
- **Fix available:** No
- **Published:** 2 Dec 2020
- **Updated:** 4 Aug 2024

## What is CVE-2020-27816?

CVE-2020-27816 is a medium-severity vulnerability in Elastic Kibana, published on 2 Dec 2020. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.

### Official description

The elasticsearch-operator does not validate the namespace where kibana logging resource is created and due to that it is possible to replace the original openshift-logging console link (kibana console) to different one, created based on the new CR for the new kibana resource. This could lead to an arbitrary URL redirection or the openshift-logging console link damage. This flaw affects elasticsearch-operator-container versions before 4.7.

Weakness: CWE-601 (URL Redirection to Untrusted Site)

## Which versions are affected by CVE-2020-27816?

It affects 2 products.


Products: Elastic Kibana, Redhat Openshift Container Platform.

## How do I fix CVE-2020-27816?

No fix has been published for CVE-2020-27816 yet. Limit exposure of the affected software until one is available.

## Is CVE-2020-27816 being exploited?

There is no known exploitation of CVE-2020-27816 in the wild and no public exploit code.

## Other vulnerabilities in Elastic Kibana

- [CVE-2019-7609](https://insights.sbomify.com/CVE-2019-7609/): Kibana Arbitrary Code Execution (critical 9.8, exploited in the wild)
- [CVE-2025-25015](https://insights.sbomify.com/CVE-2025-25015/): Kibana arbitrary code execution via prototype pollution (critical 9.9)
- [CVE-2024-37288](https://insights.sbomify.com/CVE-2024-37288/): Deserialization in Kibana (critical 9.9)
- [CVE-2023-31415](https://insights.sbomify.com/CVE-2023-31415/): Code injection in Kibana (critical 9.9)
- [CVE-2018-17245](https://insights.sbomify.com/CVE-2018-17245/): Information disclosure in Kibana (critical 9.8)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2020-27816 and fix it if it is affected.

What it is: CVE-2020-27816 is a medium-severity vulnerability in Elastic Kibana, published on 2 Dec 2020. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.
Exploitation: There is no known exploitation of CVE-2020-27816 in the wild and no public exploit code.

Affected product: Elastic Kibana. 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-2020-27816/ (Markdown: https://insights.sbomify.com/CVE-2020-27816/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2020-27816
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2020-27816
- OSV: https://osv.dev/vulnerability/CVE-2020-27816

---
From sbomify Insights: https://insights.sbomify.com/CVE-2020-27816/
Summaries are generated and may contain mistakes; the official description above is the record.