# CVE-2022-36074: Authentication headers exposed on by Nextcloud Server

> Nextcloud Server fails to strip Authorization headers during HTTP downgrades, potentially exposing credentials and allowing account compromise.

- **Severity:** Medium 6.4 (`CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:U/C:H/I:H/A:N`)
- **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:** 15 Sep 2022
- **Updated:** 23 Apr 2025
- **Also known as:** GHSA-vqgm-f748-g76v

## What is CVE-2022-36074?

CVE-2022-36074 is a medium-severity vulnerability in Nextcloud Nextcloud Server, published on 15 Sep 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 an open source personal cloud product. Affected versions of this package are vulnerable to Information Exposure which fails to strip the Authorization header on HTTP downgrade. This can lead to account access exposure and compromise. It is recommended that the Nextcloud Server is upgraded to 23.0.7 or 24.0.3. It is recommended that the Nextcloud Enterprise Server is upgraded to 22.2.11, 23.0.7 or 24.0.3. There are no known workarounds for this issue.

Weakness: CWE-863 (Incorrect Authorization), CWE-200 (Exposure of Sensitive Information to an Unauthorized Actor)

## Which versions are affected by CVE-2022-36074?

It affects 2 products.


Products: Nextcloud Nextcloud Enterprise Server, Nextcloud Nextcloud Server.

## How do I fix CVE-2022-36074?

No fix has been published for CVE-2022-36074 yet. Limit exposure of the affected software until one is available.

## Is CVE-2022-36074 being exploited?

There is no known exploitation of CVE-2022-36074 in the wild and no public exploit code.

## Other vulnerabilities in Nextcloud Nextcloud Server

- [CVE-2022-39330](https://insights.sbomify.com/CVE-2022-39330/): Database resource exhaustion for logged-in users via sharee recommendations with circles (medium 4.8)
- [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-2022-36074 and fix it if it is affected.

What it is: CVE-2022-36074 is a medium-severity vulnerability in Nextcloud Nextcloud Server, published on 15 Sep 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-2022-36074 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-2022-36074/ (Markdown: https://insights.sbomify.com/CVE-2022-36074/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2022-36074
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2022-36074
- OSV: https://osv.dev/vulnerability/CVE-2022-36074

---
From sbomify Insights: https://insights.sbomify.com/CVE-2022-36074/
Summaries are generated and may contain mistakes; the official description above is the record.