NATS JetStream has an authorization bypass through its Management API
Summary
NATS JetStream has an authorization bypass through its Management API
Original description
The description as published by the source.
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.
Source: OSV.dev (Open Source Vulnerabilities) NVD GitHub Advisory OSV
Affected packages
Fix status by distribution
Fixed packages published by each distribution for this CVE
- Debian DEBIAN-CVE-2026-33222 nats-server
- Ubuntu UBUNTU-CVE-2026-33222 nats-server
References
- advisory advisories.nats.io
- advisory github.com
- advisory nvd.nist.gov
- advisory github.com