RocketChat Rocket.Chat up to 8.1.x data query logic injection

Summaryinfo

A vulnerability identified as problematic has been detected in RocketChat Rocket.Chat up to 8.1.x. Impacted is an unknown function. This manipulation causes data query logic injection. The identification of this vulnerability is CVE-2026-30833. It is possible to initiate the attack remotely. There is no exploit available. You should upgrade the affected component.

Detailsinfo

A vulnerability has been found in RocketChat Rocket.Chat up to 8.1.x and classified as problematic. Affected by this vulnerability is some unknown functionality. The manipulation with an unknown input leads to a data query logic injection vulnerability. The CWE definition for the vulnerability is CWE-943. The product generates a query intended to access or manipulate data in a data store such as a database, but it does not neutralize or incorrectly neutralizes special elements that can modify the intended logic of the query. As an impact it is known to affect integrity. The summary by CVE is:

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.

It is possible to read the advisory at github.com. This vulnerability is known as CVE-2026-30833 since 03/05/2026. The exploitation appears to be easy. The attack can be launched remotely. The exploitation doesn't need any form of authentication. The technical details are unknown and an exploit is not publicly available.

Upgrading to version 7.10.8, 7.11.5, 7.12.5, 7.13.4, 8.0.2, 8.1.1 or 8.2.0 eliminates this vulnerability.

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Productinfo

Type

• Chat Software

Vendor

• RocketChat

Name

• Rocket.Chat

Version

• 7.10.0
• 7.10.1
• 7.10.2
• 7.10.3
• 7.10.4
• 7.10.5
• 7.10.6
• 7.10.7
• 7.11.0
• 7.11.1
• 7.11.2
• 7.11.3
• 7.11.4
• 7.12.0
• 7.12.1
• 7.12.2
• 7.12.3
• 7.12.4
• 7.13.0
• 7.13.1
• 7.13.2
• 7.13.3
• 8.0
• 8.0.0
• 8.0.1
• 8.1
• 8.1.0

License

• free

Website

• Product: https://github.com/RocketChat/Rocket.Chat/

CPE 2.3info

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CPE 2.2info

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