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CVE PROGRAM SOURCE RECORD4.9 Medium

CVE-2026-33222

NATS JetStream has an authorization bypass through its Management API

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, users with JetStream admin API access to restore one stream could restore to other stream names, impacting data which should have been protected against them. Versions 2.11.15 and 2.12.6 contain a fix. As a workaround, if developers have configured users to have limited JetStream restore permissions, temporarily remove those permissions.

Affected products

Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.

nats-io nats-server

  • < 2.11.15affected
  • >= 2.12.0-RC.1, < 2.12.6affected

References