PT-2026-27619 · Nats · Nats Server

CVE-2026-33246

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Publicado

2026-03-24

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Atualizado

2026-06-18

CVSS v3.1

6.4

Média

VetorAV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N
Name of the Vulnerable Software and Affected Versions NATS-Server versions prior to 2.11.15 NATS-Server versions prior to 2.12.6
Description NATS-Server provides a Nats-Request-Info: message header intended for account or user identification, allowing clients to make trust decisions based on information from the server. A leafnode connecting to a NATS-Server is not fully trusted unless the system account is bridged. Consequently, identity claims should not be propagated without verification. Prior to versions 2.11.15 and 2.12.6, the Nats-Request-Info: header could be spoofed, potentially impacting clients relying on this header for trust decisions. This issue does not directly affect the NATS-Server itself.
Recommendations Update NATS-Server to version 2.11.15 or later. Update NATS-Server to version 2.12.6 or later.

Exploit

Correção

Improper Authentication

Authentication Bypass by Spoofing

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Enumeração de Fraquezas

CWE-287CWE-290

Identificadores relacionados

BIT-NATS-2026-33246
CVE-2026-33246
GHSA-55H8-8G96-X4HJ
GO-2026-4830
SUSE-SU-2026:1135-1

Produtos afetados

Nats Server