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VULNERABILITIES

CVE-2026-33222 Details

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.

Metrics

CVSS 3.x Severity and Vector Strings:

CNA: [email protected]CVSS-B:4.9 MEDIUMVector:CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:H/A:N

References to Advisories, Solutions, and Tools

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URLSource(s)Tag(s)
https://advisories.nats.io/CVE/secnote-2026-12.txt [email protected]MitigationVendor Advisory
https://github.com/nats-io/nats-server/security/advisories/GHSA-9983-vrx2-fg9c [email protected]MitigationVendor Advisory

Weakness Enumeration

CWE-IDCWE NameSource
CWE-285Improper Authorization[email protected]

Affected Products

ProductVersions
linuxfoundation nats-server
< 2.11.15
>= 2.12.0, < 2.12.6

CPE

  • cpe:2.3:a:linuxfoundation:nats-server:*:*:*:*:*:*:*:*

Remediation

  • No remediation found in references.

Change History

4 change records found show changes

QUICK INFO

CVE Dictionary Entry:
CVE-2026-33222
NVD Published Date:
Mar 25, 2026
NVD Last Modified:
Jun 17, 2026
Source:
[email protected]
CVE-2026-33222 Details - Not Deferred