# CVE-2022-41971: Nextcloud Talk guests can continue to receive video streams from call after being removed from a conversation

> Removed guests in Nextcloud Talk Android can continue receiving video streams, allowing unauthorized viewing of call content.

- **Severity:** Medium 4.8 (`CVSS:3.1/AV:N/AC:H/PR:L/UI:R/S:U/C:H/I:N/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:** 1 Dec 2022
- **Updated:** 23 Apr 2025
- **Also known as:** GHSA-wx6w-xpg9-6fv4

## What is CVE-2022-41971?

CVE-2022-41971 is a medium-severity missing authorization vulnerability in nextcloud security-advisories, published on 1 Dec 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

Nextcould Talk android is a video and audio conferencing app for Nextcloud. Prior to versions 12.2.8, 13.0.10, 14.0.6, and 15.0.0, guests can continue to receive video streams from a call after being removed from a conversation. An attacker would be able to see videos on a call in a public conversation after being removed from that conversation, provided that they were removed while being in the call. Versions 12.2.8, 13.0.10, 14.0.6, and 15.0.0 contain patches for the issue. No known workarounds are available.

Weakness: CWE-668 (Exposure of Resource to Wrong Sphere), CWE-359 (Exposure of Private Personal Information to an Unauthorized Actor), CWE-200 (Exposure of Sensitive Information to an Unauthorized Actor)

## Which versions are affected by CVE-2022-41971?

It affects 1 product.


Products: Nextcloud Nextcloud Talk.

## How do I fix CVE-2022-41971?

No fix has been published for CVE-2022-41971 yet. Limit exposure of the affected software until one is available.

## Is CVE-2022-41971 being exploited?

There is no known exploitation of CVE-2022-41971 in the wild and no public exploit code.

## Other vulnerabilities in nextcloud security-advisories

- [CVE-2023-26041](https://insights.sbomify.com/CVE-2023-26041/): Nextcloud Talk messages can still be seen on conversation after expiring when cron is misconfigured (low 2.6)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2022-41971 and fix it if it is affected.

What it is: CVE-2022-41971 is a medium-severity missing authorization vulnerability in nextcloud security-advisories, published on 1 Dec 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-2022-41971 in the wild and no public exploit code.

Affected product: nextcloud security-advisories. 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-2022-41971/ (Markdown: https://insights.sbomify.com/CVE-2022-41971/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2022-41971
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2022-41971
- OSV: https://osv.dev/vulnerability/CVE-2022-41971

---
From sbomify Insights: https://insights.sbomify.com/CVE-2022-41971/
Summaries are generated and may contain mistakes; the official description above is the record.