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CVE-2026-29198

CriticalPublished

In Rocket.Chat <8.3.0, <8.2.1, <8.1.2, <8.0.3, <7.13.5, <7.12.6, <7.11.6, and <7.10.9, a NoSQL injection vulnerability can lead to account takeover of the...

Published: Apr 22, 2026
Updated: Apr 23, 2026
Assigning CNA: hackerone
Evidence observed: Aug 8, 2026

Primary CVSS

9.8/ 10Critical

nvd · CVSS 3.1

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

EPSS probability estimate

0.4%

Low · next 30 days

Percentile: 35.5%
Model date: Sep 21, 2026

EPSS is a statistical estimate, not a certainty or a measure of impact. Combine it with CVSS, KEV status, exposure and your environment.

Summary

In Rocket.Chat <8.3.0, <8.2.1, <8.1.2, <8.0.3, <7.13.5, <7.12.6, <7.11.6, and <7.10.9, a NoSQL injection vulnerability can lead to account takeover of the first user with a generated token when an OAuth app is configured.

Sources

CVE-2026-29198-POCPoC
Proof-of-concept exploit for CVE-2026-29198: NoSQL injection in Rocket.Chat OAuth2 authentication, enabling privilege escalation in vulnerable versions.

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