# CVE-2021-22892: Information disclosure in Rocket.Chat server

> Attackers can enumerate and validate email addresses on Rocket.Chat servers, leading to unauthorized disclosure of user email data.

- **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:** 27 May 2021
- **Updated:** 3 Aug 2024
- **Also known as:** GHSA-7v8v-3xwh-j47p

## What is CVE-2021-22892?

CVE-2021-22892 is a high-severity vulnerability in Rocket.chat Rocket.chat, published on 27 May 2021. An attacker can exploit it over the internet without logging in, with no action from the victim.

### Official description

An information disclosure vulnerability exists in the Rocket.Chat server fixed v3.13, v3.12.2 & v3.11.3 that allowed email addresses to be disclosed by enumeration and validation checks.

Weakness: CWE-203 (Observable Discrepancy), CWE-200 (Exposure of Sensitive Information to an Unauthorized Actor)

## Which versions are affected by CVE-2021-22892?

It affects 1 product.


Products: Rocket.chat Rocket.chat.

## How do I fix CVE-2021-22892?

No fix has been published for CVE-2021-22892 yet. Limit exposure of the affected software until one is available.

## Is CVE-2021-22892 being exploited?

There is no known exploitation of CVE-2021-22892 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-2021-22892 and fix it if it is affected.

What it is: CVE-2021-22892 is a high-severity vulnerability in Rocket.chat Rocket.chat, published on 27 May 2021. 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-2021-22892 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-2021-22892/ (Markdown: https://insights.sbomify.com/CVE-2021-22892/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2021-22892
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2021-22892
- OSV: https://osv.dev/vulnerability/CVE-2021-22892

---
From sbomify Insights: https://insights.sbomify.com/CVE-2021-22892/
Summaries are generated and may contain mistakes; the official description above is the record.