Dashboard / CVE-2026-58210

CVE-2026-58210

HIGH
MEDIUM Priority: 0.06 BB Relevance: 75/100
Published: 2026-07-08 Modified: 2026-10-25 First seen: 2026-10-29 Status: active

Attack Surface

Network Low Complexity No Auth No Interaction

CVSS Vector Breakdown

AV: Network
AC: Low
PR: None
UI: None
S: Unchanged
C: None
I: None
A: High

Description

NATS Server is a high-performance server for NATS.io, the cloud and edge native messaging system. Prior to 2.14.3 and 2.12.12, an unauthenticated MQTT client could cause the server to retain large incomplete MQTT CONNECT packets before authentication completed, consuming server memory while the parser waited for the advertised MQTT packet length. This issue is fixed in versions 2.14.3 and 2.12.12.

Weakness Classification (1)

Affected Software (1)

VendorProductVersion
linuxfoundation nats-server < 2.12.12

References & Advisories (5)

Bug Bounty Relevance

75 / 100
✓ Network accessible
✓ No authentication
✓ Low complexity
✓ No user interaction

CVSS Score

7.5 / 10.0 v3.1
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

EPSS — Exploitation Probability

0.74%
Raw Score 0.007420
Percentile 54.6%
Date 2026-10-29

EPSS Trend

2026-10-29
0.00742
2026-10-28
0.00742

Intelligence Sources

nvd ref →

External Links