Bug 2451480 (CVE-2026-33222) - CVE-2026-33222 nats-server: NATS-Server: Unauthorized data modification via JetStream stream restore
Summary: CVE-2026-33222 nats-server: NATS-Server: Unauthorized data modification via J...
Keywords:
Status: NEW
Alias: CVE-2026-33222
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
medium
medium
Target Milestone: ---
Assignee: Product Security DevOps Team
QA Contact:
URL:
Whiteboard:
Depends On: 2451502
Blocks:
TreeView+ depends on / blocked
 
Reported: 2026-03-25 21:01 UTC by OSIDB Bzimport
Modified: 2026-03-25 21:29 UTC (History)
5 users (show)

Fixed In Version:
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Description OSIDB Bzimport 2026-03-25 21:01:59 UTC 
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.
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