Description
NATS-Server is a High-Performance server for NATS.io, a cloud and edge native messaging system. Prior to versions 2.11.15 and 2.12.6, for MQTT deployments using usercodes/passwords: MQTT passwords are incorrectly classified as a non-authenticating identity statement (JWT) and exposed via monitoring endpoints. Versions 2.11.14 and 2.12.6 contain a fix. As a workaround, ensure monitoring end-points are adequately secured. Best practice remains to not expose the monitoring endpoint to the Internet or other untrusted network users.
Details
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:N
Affected Packages
| Software | From version | Fixed in |
|---|---|---|
| github.com/nats-io/nats-server | โ | โ |
| github.com/nats-io/nats-server/v2 | โ | โ |
| nats | โ | โ |
| nats-server | 2.12.0 | 2.12.6 |
References
Similar Threats
- High CVE-2026-27889
- High CVE-2026-29785
- Medium CVE-2026-33215
- High CVE-2026-33217
- High CVE-2026-33218
Vulnerability Monitoring
Stay informed about vulnerabilities in your stack
BotEraser monitors your WordPress installation and notifies you when software you use appears in our vulnerability database.
Set Up Free Alerts โNo credit card required ยท Results in minutes
ⓘ Data Notice: The information presented above has been compiled from publicly available internet sources. Boteraser aggregates this data solely for informational purposes and does not independently classify, evaluate, or endorse any findings about the vulnerabilities listed. The accuracy and completeness of this information is the sole responsibility of the original publishers. Boteraser and its operators accept no liability for any decisions made based on this data.