# CVE-2021-39114: Code injection in Confluence Data Center

> Authenticated users can execute arbitrary Java code or system commands via OGNL injection in Atlassian Confluence Server and Data Center.

- **Severity:** High 8.8 (`CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H`)
- **Exploited in the wild:** Not known
- **Login needed:** Any signed-in user
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 5 Apr 2022
- **Updated:** 4 Oct 2024
- **Also known as:** GHSA-2grp-34h8-p48c, UBUNTU-CVE-2021-39114

## What is CVE-2021-39114?

CVE-2021-39114 is a high-severity code injection vulnerability in Atlassian Confluence Data Center, published on 5 Apr 2022. Any signed-in user can exploit it over the network, with no action from the victim.

### Official description

Affected versions of Atlassian Confluence Server and Data Center allow users with a valid account on a Confluence Data Center instance to execute arbitrary Java code or run arbitrary system commands by injecting an OGNL payload. The affected versions are before version 6.13.23, from version 6.14.0 before 7.4.11, from version 7.5.0 before 7.11.6, and from version 7.12.0 before 7.12.5.

Weakness: CWE-94 (Improper Control of Generation of Code)

## Which versions are affected by CVE-2021-39114?

It affects 2 products.


Products: Atlassian Confluence Data Center, Atlassian Confluence Server.

## How do I fix CVE-2021-39114?

No fix has been published for CVE-2021-39114 yet. Limit exposure of the affected software until one is available.

## Is CVE-2021-39114 being exploited?

There is no known exploitation of CVE-2021-39114 in the wild and no public exploit code.

## Other vulnerabilities in Atlassian Confluence Data Center

- [CVE-2023-22527](https://insights.sbomify.com/CVE-2023-22527/): Atlassian Confluence Data Center and Server Template Injection (critical 10.0, exploited in the wild)
- [CVE-2023-22518](https://insights.sbomify.com/CVE-2023-22518/): Atlassian Confluence Data Center and Server Improper Authorization (critical 10.0, exploited in the wild)
- [CVE-2023-22515](https://insights.sbomify.com/CVE-2023-22515/): Atlassian Confluence Data Center and Server Broken Access Control (critical 10.0, exploited in the wild)
- [CVE-2022-26134](https://insights.sbomify.com/CVE-2022-26134/): Atlassian Confluence Server and Data Center Remote Code Execution (critical 9.8, exploited in the wild)
- [CVE-2021-26084](https://insights.sbomify.com/CVE-2021-26084/): Atlassian Confluence Server and Data Center Object-Graph Navigation Language (OGNL) Injection (critical 9.8, exploited in the wild)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2021-39114 and fix it if it is affected.

What it is: CVE-2021-39114 is a high-severity code injection vulnerability in Atlassian Confluence Data Center, published on 5 Apr 2022. Any signed-in user can exploit it over the network, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2021-39114 in the wild and no public exploit code.

Affected product: Atlassian Confluence Data Center. 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-2021-39114/ (Markdown: https://insights.sbomify.com/CVE-2021-39114/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2021-39114
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2021-39114
- OSV: https://osv.dev/vulnerability/CVE-2021-39114

---
From sbomify Insights: https://insights.sbomify.com/CVE-2021-39114/
Summaries are generated and may contain mistakes; the official description above is the record.