CVE-2026-33223

MEDIUM

6.4

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, the NATS message header `Nats-Request-Info:` is supposed to be a guarantee of identity by the NATS server, but the stripping of this header from inbound messages was not fully effective. An attacker with valid credentials for any regular client interface could thus spoof their identity to services which rely upon this header. Versions 2.11.15 and 2.12.6 contain a fix. No known workarounds are available.

Details CVE

Score CVSS v3.16.4

SeveriteMEDIUM

Vecteur CVSSCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N

Vecteur d'attaqueNETWORK

ComplexiteLOW

Privileges requisLOW

Interaction utilisateurNONE

Publie3/25/2026

Derniere modification3/26/2026

Sourcenvd

Observations honeypot0

Produits affectes

linuxfoundation:nats-server

Faiblesses (CWE)

CWE-290

References

https://advisories.nats.io/CVE/secnote-2026-09.txt(security-advisories@github.com)

https://github.com/nats-io/nats-server/security/advisories/GHSA-pwx7-fx9r-hr4h(security-advisories@github.com)

Correlations IOC

Aucune correlation enregistree

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