# CVE-2022-35248: Auth bypass in Rocket.Chat

> Attackers can bypass two-factor authentication in Rocket.Chat by configuring the server to use CAS during login, potentially leading to account takeover.

- **Severity:** High 8.8 (`CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/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:** 23 Sep 2022
- **Updated:** 3 Aug 2024
- **Also known as:** GHSA-gv26-x27m-rfg3

## What is CVE-2022-35248?

CVE-2022-35248 is a high-severity authentication bypass vulnerability in Rocket.chat Rocket.chat, published on 23 Sep 2022. Any signed-in user can exploit it over the network, with no action from the victim.

### Official description

A improper authentication vulnerability exists in Rocket.Chat <v5, <v4.8.2 and <v4.7.5 that allowed two factor authentication can be bypassed when telling the server to use CAS during login.

Weakness: CWE-287 (Improper Authentication)

## Which versions are affected by CVE-2022-35248?

It affects 1 product.


Products: Rocket.chat Rocket.chat.

## How do I fix CVE-2022-35248?

No fix has been published for CVE-2022-35248 yet. Limit exposure of the affected software until one is available.

## Is CVE-2022-35248 being exploited?

There is no known exploitation of CVE-2022-35248 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-2022-35248 and fix it if it is affected.

What it is: CVE-2022-35248 is a high-severity authentication bypass vulnerability in Rocket.chat Rocket.chat, published on 23 Sep 2022. Any signed-in user can exploit it over the network, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2022-35248 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-2022-35248/ (Markdown: https://insights.sbomify.com/CVE-2022-35248/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2022-35248
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2022-35248
- OSV: https://osv.dev/vulnerability/CVE-2022-35248

---
From sbomify Insights: https://insights.sbomify.com/CVE-2022-35248/
Summaries are generated and may contain mistakes; the official description above is the record.