AUGUST 24, 2026
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Case File

CVE-2026-58213

HIGH · CVSS 7.1 EPSS 0.32% Public Exploit

Source: NVD + CISA KEV + EPSS · Published 2026-07-08 · Last synced 2026-08-07

CyberRota Analysis

AI-Generated

NATS Server versions prior to 2.14.1 and 2.12.9 are vulnerable to a flaw that allows MQTT clients to inject protocol control characters into subscription filters, potentially corrupting the protocol stream and enabling unintended NATS operations. This could lead to unauthorized access or manipulation of messaging data. Organizations using affected versions should prioritize upgrading to the patched releases to mitigate the risk of exploitation.

Public Exploit Signal

A public exploit, PoC, GitHub repository or Metasploit reference was detected for this CVE.

Note: these links are listed for security research and verification purposes only.

CVE
CVE-2026-58213
Severity
HIGH
CVSS
7.1
EPSS
0.32%

Original NVD Description

NATS Server is a high-performance server for NATS.io, the cloud and edge native messaging system. Prior to 2.14.1 and 2.12.9, an MQTT client could include protocol control characters in subscription filters that were later forwarded as NATS protocol data to route or leafnode connections, corrupting the forwarded protocol stream and allowing injection of unintended NATS protocol operations. This issue is fixed in versions 2.14.1 and 2.12.9.

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