# CVE-2022-39330: Database resource exhaustion for logged-in users via sharee recommendations with circles

> A logged-in attacker can cause system slowdowns by generating excessive database and CPU load via sharee recommendations in the Circles app.

- **Severity:** Medium 4.8 (`CVSS:3.1/AV:N/AC:H/PR:L/UI:R/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:** A user has to click or open something
- **Fix available:** No
- **Published:** 27 Oct 2022
- **Updated:** 23 Apr 2025
- **Also known as:** GHSA-wxx7-w5p4-7x4c

## What is CVE-2022-39330?

CVE-2022-39330 is a medium-severity denial of service vulnerability in Nextcloud Nextcloud Server, published on 27 Oct 2022. Any signed-in user can exploit it over the network, and only if a user opens a file or follows a link.

### Official description

Nextcloud Server is the file server software for Nextcloud, a self-hosted productivity platform. Nextcloud Server prior to versions 23.0.10 and 24.0.6 and Nextcloud Enterprise Server prior to versions 22.2.10, 23.0.10, and 24.0.6 are vulnerable to a logged-in attacker slowing down the system by generating a lot of database/cpu load. Nextcloud Server versions 23.0.10 and 24.0.6 and Nextcloud Enterprise Server versions 22.2.10, 23.0.10, and 24.0.6 contain patches for this issue. As a workaround, disable the Circles app.

Weakness: CWE-400 (Uncontrolled Resource Consumption)

## Which versions are affected by CVE-2022-39330?

It affects 2 products.


Products: Nextcloud Nextcloud Enterprise Server, Nextcloud Nextcloud Server.

## How do I fix CVE-2022-39330?

No fix has been published for CVE-2022-39330 yet. Limit exposure of the affected software until one is available.

## Is CVE-2022-39330 being exploited?

There is no known exploitation of CVE-2022-39330 in the wild and no public exploit code.

## Other vulnerabilities in Nextcloud Nextcloud Server

- [CVE-2022-36074](https://insights.sbomify.com/CVE-2022-36074/): Authentication headers exposed on by Nextcloud Server (medium 6.4)
- [CVE-2022-39364](https://insights.sbomify.com/CVE-2022-39364/): Exception logging in Sharepoint app reveals clear-text connection details (medium 4.0)
- [CVE-2022-39329](https://insights.sbomify.com/CVE-2022-39329/): Profile of disabled user stays accessible (low 3.5)
- [CVE-2022-39211](https://insights.sbomify.com/CVE-2022-39211/): Server-Side Request Forgery (SSRF) via potential filter bypass in Nextcloud Server (low 3.0)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2022-39330 and fix it if it is affected.

What it is: CVE-2022-39330 is a medium-severity denial of service vulnerability in Nextcloud Nextcloud Server, published on 27 Oct 2022. Any signed-in user can exploit it over the network, and only if a user opens a file or follows a link.
Exploitation: There is no known exploitation of CVE-2022-39330 in the wild and no public exploit code.

Affected product: Nextcloud Nextcloud Server. 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-2022-39330/ (Markdown: https://insights.sbomify.com/CVE-2022-39330/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2022-39330
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2022-39330
- OSV: https://osv.dev/vulnerability/CVE-2022-39330

---
From sbomify Insights: https://insights.sbomify.com/CVE-2022-39330/
Summaries are generated and may contain mistakes; the official description above is the record.