CVE-2026-33222NATS-Server is a High-Performance server for NATS.io, a cloud and edge native messaging system.
Updated under an hour ago ()
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It affects linuxfoundation nats-server. Add what you run to find out whether that includes you.
No exploitation reported and no EPSS estimate yet.
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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
- 4.9 MEDIUM (v3.1, NVD)CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:H/A:N
- Weakness (CWE)
- CWE-285
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- Not given
- NVD analysis
- Analyzed
- Record last updated
- Jun 17, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
linuxfoundation nats-server linuxfoundation:nats-server | before 2.11.15; from 2.12.0 before 2.12.6 | NVD |
References
- https://advisories.nats.io/CVE/secnote-2026-12.txtmitigation, vendor-advisory
- https://github.com/nats-io/nats-server/security/advisories/GHSA-9983-vrx2-fg9cmitigation, vendor-advisory
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.