# CVE-2026-30833: Rocket.Chat: NoSQL injection in the EE ddp-streamer-service

> Unauthenticated attackers can inject MongoDB operators into login queries to bypass authentication and take over accounts.

- **Severity:** Medium 6.9 (`CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 6 Mar 2026
- **Updated:** 9 Mar 2026
- **Also known as:** GHSA-hgq6-9jg2-wf3f

## What is CVE-2026-30833?

CVE-2026-30833 is a medium-severity SQL injection vulnerability in Rocket.chat Rocket.chat, published on 6 Mar 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

Rocket.Chat is an open-source, secure, fully customizable communications platform. Prior to versions 7.10.8, 7.11.5, 7.12.5, 7.13.4, 8.0.2, 8.1.1, and 8.2.0, a NoSQL injection vulnerability exists in Rocket.Chat's account service used in the ddp-streamer micro service that allows unauthenticated attackers to manipulate MongoDB queries during authentication. The vulnerability is located in the username-based login flow where user-supplied input is directly embedded into a MongoDB query selector without validation. An attacker can inject MongoDB operator expressions (e.g., { $regex: '.*' }) in place of a username string, causing the database query to match unintended user records. This issue has been patched in versions 7.10.8, 7.11.5, 7.12.5, 7.13.4, 8.0.2, 8.1.1, and 8.2.0.

Weakness: CWE-943 (Improper Neutralization of Special Elements in Data Query Logic)

## Which versions are affected by CVE-2026-30833?

It affects 1 product.


Products: Rocket.chat Rocket.chat.

## How do I fix CVE-2026-30833?

No fix has been published for CVE-2026-30833 yet. Limit exposure of the affected software until one is available.

## Is CVE-2026-30833 being exploited?

There is no known exploitation of CVE-2026-30833 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-2026-30833 and fix it if it is affected.

What it is: CVE-2026-30833 is a medium-severity SQL injection vulnerability in Rocket.chat Rocket.chat, published on 6 Mar 2026. 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-2026-30833 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-2026-30833/ (Markdown: https://insights.sbomify.com/CVE-2026-30833/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2026-30833
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-30833
- OSV: https://osv.dev/vulnerability/CVE-2026-30833

---
From sbomify Insights: https://insights.sbomify.com/CVE-2026-30833/
Summaries are generated and may contain mistakes; the official description above is the record.