AI and data stack advisories

Severe, 6 weeks1496Projects326

1496 severe, 6 weeks · 326 projects

nats-serverGO-2026-4833

NATS is vulnerable to MQTT hijacking via Client ID in github.com/nats-io/nats-server

nats-server

CVE-2026-33215 · Published Mar 26, 2026 · updated Mar 27, 2026

Medium6.5
No fix yet
Source advisory

Affected versions

PackageAffectedFixed in
github.com/nats-io/nats-server
Go
all versionsNo fix yet

Changes since it was listed

SeverityOct 11Severity: Unrated to Medium
Details and references
CVSS 3.1
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:L
Severity from
NVD
Also known as
BIT-nats-2026-33215, CVE-2026-33215, GHSA-fcjp-h8cc-6879

More nats-server advisories

All nats-server
Medium 4.3Mar 26NATS: Message tracing can be redirected to arbitrary subject in github.com/nats-io/nats-serverCVE-2026-33249no fix yetHigh 7.4Mar 26NATS credentials are exposed in monitoring port via command-line argv in github.com/nats-io/nats-serverCVE-2026-33247no fix yetHigh 7.5Mar 25NATS: Pre-auth remote server crash via WebSocket frame length overflow in wsReadCVE-2026-27889no fix yetMedium 4.2Mar 24NATS has mTLS verify_and_map authentication bypass via incorrect Subject DN matchingCVE-2026-33248no fix yetMedium 6.4Mar 24NATS: Leafnode connections allow spoofing of Nats-Request-Info identity headersCVE-2026-33246no fix yetMedium 6.4Mar 24NATS Server: Incomplete Stripping of Nats-Request-Info Header Allows Identity SpoofingCVE-2026-33223no fix yet