CVE-2026-30833
mediumpriority · track · 21EPSS 0.003 · 21 %ileEUUSEPSS · scored 2026-10-27
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.
cvss
Technical severity, 0–10. One row per scoring source.
base score 0–10 · higher = more severe · hover a vector to decode⚠ sources disagree · low–medium · 2.7–6.9
ssvc
A stakeholder decision — act, attend, or track — from exploitation and impact.
weaknesses
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affected products (14)
Products and version ranges known to be affected.
also known as (2)
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sources
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references (5)
External citations — patches, advisories, analysis.
- https://access.redhat.com/security/cve/cve-2026-30833cnnvd
- https://github.com/RocketChat/Rocket.Chat/releasesPatchcnnvd
- https://github.com/RocketChat/Rocket.Chat/security/advisories/GHSA-hgq6-9jg2-wf3fcnnvd
- https://github.com/RocketChat/Rocket.Chat/security/advisories/GHSA-hgq6-9jg2-wf3fenisa_euvd
- https://github.com/RocketChat/Rocket.Chat/security/advisories/GHSA-hgq6-9jg2-wf3fVendor Advisorynvd
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