# CVE-2023-23911: Security feature bypass in Rocket.Chat

> An attacker can bypass end-to-end encryption in Rocket.Chat by manipulating group keys, allowing unauthorized access to private chat messages.

- **Severity:** High 7.5 (`CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/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:** 10 Mar 2023
- **Updated:** 28 Feb 2025
- **Also known as:** GHSA-rqq3-v54f-727p

## What is CVE-2023-23911?

CVE-2023-23911 is a high-severity vulnerability in Rocket.chat Rocket.chat, published on 10 Mar 2023. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

An improper access control vulnerability exists prior to v6 that could allow an attacker to break the E2E encryption of a chat room by a user changing the group key of a chat room.

Weakness: CWE-326 (Inadequate Encryption Strength), CWE-284 (Improper Access Control)

## Which versions are affected by CVE-2023-23911?

It affects 1 product.


Products: Rocket.chat Rocket.chat.

## How do I fix CVE-2023-23911?

No fix has been published for CVE-2023-23911 yet. Limit exposure of the affected software until one is available.

## Is CVE-2023-23911 being exploited?

There is no known exploitation of CVE-2023-23911 in the wild and no public exploit code.

## Other vulnerabilities in Rocket.chat Rocket.chat

- [CVE-2026-58066](https://insights.sbomify.com/CVE-2026-58066/): Auth bypass in Rocket.Chat (critical 9.8)
- [CVE-2026-29198](https://insights.sbomify.com/CVE-2026-29198/): SQL injection in Rocket.Chat (critical 9.8)
- [CVE-2023-28316](https://insights.sbomify.com/CVE-2023-28316/): Security feature bypass in Rocket.Chat (critical 9.8)
- [CVE-2022-44567](https://insights.sbomify.com/CVE-2022-44567/): Command injection in Rocket.chat - Electron Desktop (critical 9.8)
- [CVE-2021-22910](https://insights.sbomify.com/CVE-2021-22910/): Code injection in Rocket.Chat server (critical 9.8)

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2023-23911 and fix it if it is affected.

What it is: CVE-2023-23911 is a high-severity vulnerability in Rocket.chat Rocket.chat, published on 10 Mar 2023. 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-2023-23911 in the wild and no public exploit code.

Affected product: Rocket.chat Rocket.chat. 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-2023-23911/ (Markdown: https://insights.sbomify.com/CVE-2023-23911/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2023-23911
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2023-23911
- OSV: https://osv.dev/vulnerability/CVE-2023-23911

---
From sbomify Insights: https://insights.sbomify.com/CVE-2023-23911/
Summaries are generated and may contain mistakes; the official description above is the record.