PT-2026-56566 · Unknown · Nats Server

Kodareef5

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CVE-2026-58254

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Published

2026-07-08

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Updated

2026-07-14

CVSS v3.1

6.5

Medium

VectorAV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N
Name of the Vulnerable Software and Affected Versions NATS Server versions prior to 2.14.3 NATS Server versions prior to 2.12.8
Description Message trace destination checks are not consistently applied to messages arriving through leafnode connections. This allows a leafnode operator to send trace events to subjects that are normally restricted and utilize trace-only behavior to block the standard delivery or storage of affected messages.
Recommendations Update NATS Server to version 2.14.3 or later. Update NATS Server to version 2.12.8 or later.

Exploit

Fix

Incorrect Authorization

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dbugs@ptsecurity.com

Weakness Enumeration

CWE-863

Related Identifiers

BIT-NATS-2026-58254
CVE-2026-58254
GHSA-P3J5-5HRQ-P75H
RHSA-2026:36016
RHSA-2026:36017

Affected Products

Nats Server