GHSA-v722-jcv5-w7mc
Suggest an improvement- Source
- https://github.com/advisories/GHSA-v722-jcv5-w7mc
- Import Source
- https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/03/GHSA-v722-jcv5-w7mc/GHSA-v722-jcv5-w7mc.json
- JSON Data
- https://api.osv.dev/v1/vulns/GHSA-v722-jcv5-w7mc
- Aliases
-
- BIT-nats-2026-33216
- CVE-2026-33216
- GO-2026-4836
- Downstream
- Related
- Published
- 2026-03-24T21:42:10Z
- Modified
- 2026-03-27T22:18:39.770946Z
- Severity
-
- 8.6 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:N CVSS Calculator
- Summary
- NATS has MQTT plaintext password disclosure
- Details
-
Background
NATS.io is a high performance open source pub-sub distributed communication technology, built for the cloud, on-premise, IoT, and edge computing.
The nats-server provides an MQTT client interface.
Problem Description
For MQTT deployments using usercodes/passwords: MQTT passwords are incorrectly classified as a non-authenticating identity statement (JWT) and exposed via monitoring endpoints.
Affected Versions
Any version before v2.12.6 or v2.11.15
Workarounds
Ensure monitoring end-points are adequately secured.
Best practice remains to not expose the monitoring endpoint to the Internet or other untrusted network users.
- Database specific
{ "github_reviewed": true, "cwe_ids": [ "CWE-256" ], "nvd_published_at": "2026-03-25T20:16:32Z", "github_reviewed_at": "2026-03-24T21:42:10Z", "severity": "HIGH" }- References
-
- https://github.com/nats-io/nats-server/security/advisories/GHSA-v722-jcv5-w7mc
- https://nvd.nist.gov/vuln/detail/CVE-2026-33216
- https://github.com/nats-io/nats-server/commit/b5b63cfc35a57075e09c1f57503d31721bed8099
- https://advisories.nats.io/CVE/secnote-2026-05.txt
- https://github.com/nats-io/nats-server
Affected packages
Go / github.com/nats-io/nats-server/v2
Package
- Name
- github.com/nats-io/nats-server/v2
- View open source insights on deps.dev
- Purl
- pkg:golang/github.com/nats-io/nats-server/v2
Go / github.com/nats-io/nats-server/v2
Package
- Name
- github.com/nats-io/nats-server/v2
- View open source insights on deps.dev
- Purl
- pkg:golang/github.com/nats-io/nats-server/v2
Go / github.com/nats-io/nats-server
Package
- Name
- github.com/nats-io/nats-server
- View open source insights on deps.dev
- Purl
- pkg:golang/github.com/nats-io/nats-server