CVE-2026-33249

MEDIUM

4.3

Descricao

NATS-Server is a High-Performance server for NATS.io, a cloud and edge native messaging system. Starting in version 2.11.0 and prior to versions 2.11.15 and 2.12.6, a valid client which uses message tracing headers can indicate that the trace messages can be sent to an arbitrary valid subject, including those to which the client does not have publish permission. The payload is a valid trace message and not chosen by the attacker. Versions 2.11.15 and 2.12.6 contain a fix. No known workarounds are available.

Detalhes CVE

Pontuacao CVSS v3.14.3

SeveridadeMEDIUM

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

Vetor de ataqueNETWORK

ComplexidadeLOW

Privilegios necessariosLOW

Interacao do usuarioNONE

Publicado3/25/2026

Ultima modificacao3/26/2026

Fontenvd

Avistamentos honeypot0

Produtos afetados

linuxfoundation:nats-server

Fraquezas (CWE)

CWE-863

Referencias

https://advisories.nats.io/CVE/secnote-2026-15.txt(security-advisories@github.com)

https://github.com/nats-io/nats-server/security/advisories/GHSA-8m2x-3m6q-6w8j(security-advisories@github.com)

Correlacoes IOC

Sem correlacoes registradas

This product uses data from the NVD API but is not endorsed or certified by the NVD.