CVE-2026-33222

MEDIUM EPSS 22.3%
Published Mar 25, 20263mo ago · Modified Jun 17, 20262w ago
4.9 CVSS 3.1
Medium
Find Similar
Published Mar 25, 2026 3mo ago
Last Modified Jun 17, 2026 2w ago

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.

CVSS Details

Base Score
4.9
Exploitability
1.2
Impact
3.6
Vector string
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:H/A:N
Attack Vector Network
Attack Complexity Low
Privileges Required High
User Interaction None
Scope Unchanged
Confidentiality None
Integrity High
Availability None

Threat Intelligence

EPSS Exploit Probability
22.3% percentile
Exploit & Patch Status
No Known Exploit
No Patch Available

Weaknesses 1

CWE-285

Affected Products 2

VendorProductVersionRange
linuxfoundationnats-server* <2.11.15
linuxfoundationnats-server*≥2.12.0  –  <2.12.6

References 2

  • advisories.nats.io https://advisories.nats.io/CVE/secnote-2026-12.txt
    MitigationVendor Advisory
  • github.com https://github.com/nats-io/nats-server/security/advisories/GHSA-9983-vrx2-fg9c
    MitigationVendor Advisory

Remediation

No remediation data recorded yet

Check vendor advisories and the NVD entry for patch availability.