# CVE-2024-27138: Apache Archiva: disabling user registration is not effective

> Attackers can bypass disabled user registration settings in Apache Archiva to create accounts, requiring migration as the software is retired.

- **Severity:** High 7.5 (`CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/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:** 1 Mar 2024
- **Updated:** 13 Feb 2025
- **Also known as:** GHSA-rv4h-m4wc-v99w

## What is CVE-2024-27138?

CVE-2024-27138 is a high-severity missing authorization vulnerability in Apache Archiva, published on 1 Mar 2024. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

** UNSUPPORTED WHEN ASSIGNED ** Incorrect Authorization vulnerability in Apache Archiva.

Apache Archiva has a setting to disable user registration, however this restriction can be bypassed. As Apache Archiva has been retired, we do not expect to release a version of Apache Archiva that fixes this issue. You are recommended to look into migrating to a different solution, or isolate your instance from any untrusted users.

NOTE: This vulnerability only affects products that are no longer supported by the maintainer

Weakness: CWE-863 (Incorrect Authorization)

## Which versions are affected by CVE-2024-27138?

2 open source packages ship an affected version, including org.apache.archiva:archiva. It affects 1 product.


| Package | Ecosystem | Affected | Fixed in |
| --- | --- | --- | --- |
| `org.apache.archiva:archiva` | Maven | All versions to 2.2.10 | None |
| `org.apache.archiva:archiva` | Maven | All versions to 2.2.10 | None |

Products: Apache Archiva.

## How do I fix CVE-2024-27138?

No fix has been published for CVE-2024-27138 yet. Limit exposure of the affected software until one is available.

## Is CVE-2024-27138 being exploited?

There is no known exploitation of CVE-2024-27138 in the wild and no public exploit code.

## Other vulnerabilities in Apache Archiva

- [CVE-2013-2251](https://insights.sbomify.com/CVE-2013-2251/): Apache Struts Improper Input Validation (critical 9.8, exploited in the wild)
- [CVE-2016-4469](https://insights.sbomify.com/CVE-2016-4469/): Cross-site request forgery in n/a (high 8.8)
- [CVE-2017-5657](https://insights.sbomify.com/CVE-2017-5657/): Apache Archiva vulnerable to Cross Site Request Forgery (high 8.0)
- [CVE-2024-27139](https://insights.sbomify.com/CVE-2024-27139/): Apache Archiva: incorrect authentication potentially leading to account takeover (high 7.5)
- [CVE-2022-40308](https://insights.sbomify.com/CVE-2022-40308/): Apache Archiva prior to 2.2.9 may allow the anonymous user to read arbitrary files (high 7.5)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2024-27138 and fix it if it is affected.

What it is: CVE-2024-27138 is a high-severity missing authorization vulnerability in Apache Archiva, published on 1 Mar 2024. 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-2024-27138 in the wild and no public exploit code.

Affected packages and fixed versions:
- org.apache.archiva:archiva (Maven): affected all versions up to 2.2.10; no fix listed
- org.apache.archiva:archiva (Maven): affected all versions up to 2.2.10; no fix listed

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-2024-27138/ (Markdown: https://insights.sbomify.com/CVE-2024-27138/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2024-27138
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2024-27138
- OSV: https://osv.dev/vulnerability/CVE-2024-27138

---
From sbomify Insights: https://insights.sbomify.com/CVE-2024-27138/
Summaries are generated and may contain mistakes; the official description above is the record.