Dashboard / CVE-2026-58252

CVE-2026-58252

MEDIUM
MEDIUM Priority: 0.03 BB Relevance: 63/100
Published: 2026-07-08 Modified: 2026-10-25 First seen: 2026-10-29 Status: active

Attack Surface

Network Low Complexity No Interaction Conf. Impact

CVSS Vector Breakdown

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

Description

NATS Server is a high-performance server for NATS.io, the cloud and edge native messaging system. Prior to 2.14.0, 2.12.7, and 2.11.16, an authenticated user could receive messages on denied subjects when a wildcard subscription overlapped with a configured wildcard deny rule but was not a subset of it, and queue subscriptions could also affect delivery to legitimate queue consumers. This issue is fixed in versions 2.14.0, 2.12.7, and 2.11.16.

Weakness Classification (1)

Affected Software (2)

VendorProductVersion
linuxfoundation nats-server < 2.11.16
linuxfoundation nats-server 2.12.0 – 2.12.7

References & Advisories (7)

Bug Bounty Relevance

63 / 100
✓ Network accessible
✓ Low complexity
✓ No user interaction

CVSS Score

6.5 / 10.0 v3.1
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

EPSS — Exploitation Probability

0.46%
Raw Score 0.004640
Percentile 40.2%
Date 2026-10-29

EPSS Trend

2026-10-29
0.00464
2026-10-28
0.00464

Intelligence Sources

nvd ref →

External Links