# CVE-2021-32722: Uncontrolled Resource Consumption in GlobalNewFiles

> An attacker can overwhelm database servers by performing rapid page moves, causing denial of service in the GlobalNewFiles MediaWiki extension.

- **Severity:** Medium 6.5 (`CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/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:** 28 Jun 2021
- **Updated:** 3 Aug 2024
- **Also known as:** GHSA-cwv5-c938-5h5h

## What is CVE-2021-32722?

CVE-2021-32722 is a medium-severity denial of service vulnerability in miraheze GlobalNewFiles, published on 28 Jun 2021. Any signed-in user can exploit it over the network, with no action from the victim.

### Official description

GlobalNewFiles is a mediawiki extension. Versions prior to 48be7adb70568e20e961ea1cb70904454a671b1d are affected by an uncontrolled resource consumption vulnerability. A large amount of page moves within a short space of time could overwhelm Database servers due to improper handling of load balancing and a lack of an appropriate index. As a workaround, one may avoid use of the extension unless additional rate limit at the MediaWiki level or via PoolCounter / MySQL is enabled. A patch is available in version 48be7adb70568e20e961ea1cb70904454a671b1d.

Weakness: CWE-400 (Uncontrolled Resource Consumption)

## Which versions are affected by CVE-2021-32722?

It affects 1 product.


Products: Miraheze Globalnewfiles.

## How do I fix CVE-2021-32722?

No fix has been published for CVE-2021-32722 yet. Limit exposure of the affected software until one is available.

## Is CVE-2021-32722 being exploited?

There is no known exploitation of CVE-2021-32722 in the wild and no public exploit code.

## Other vulnerabilities in miraheze GlobalNewFiles

- [CVE-2021-39186](https://insights.sbomify.com/CVE-2021-39186/): Improper Input Validation in GlobalNewFiles (medium 4.3)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2021-32722 and fix it if it is affected.

What it is: CVE-2021-32722 is a medium-severity denial of service vulnerability in miraheze GlobalNewFiles, published on 28 Jun 2021. Any signed-in user can exploit it over the network, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2021-32722 in the wild and no public exploit code.

Affected product: miraheze GlobalNewFiles. 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-2021-32722/ (Markdown: https://insights.sbomify.com/CVE-2021-32722/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2021-32722
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2021-32722
- OSV: https://osv.dev/vulnerability/CVE-2021-32722

---
From sbomify Insights: https://insights.sbomify.com/CVE-2021-32722/
Summaries are generated and may contain mistakes; the official description above is the record.