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CVE-2026-58252

MEDIUM
6.5
CVSS 3.1
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.

Metadata

CVE ID
CVE-2026-58252
State
PUBLISHED
Assigner
GitHub_M
Reserved
2026-06-29 21:54 UTC
Published
2026-07-08 19:46 UTC
Last updated
2026-07-08 19:46 UTC
Primary CWE
CWE-285
CWE-285: Improper Authorization
Vendor / Product
nats-io / nats-server
Sources
cve.org  ·  NVD

Severity & Metrics

6.5 MEDIUM CVSS 3.1
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
Affected products (1)
VendorProductPlatformVersions
nats-io nats-server — < 2.11.16, >= 2.12.0-preview.1, < 2.12.7
Weakness (CWE)
CWESourceDescription
CWE-285 cna CWE-285: Improper Authorization
CVSS scores (1)
ScoreSeverityVersionSourceVector
6.5 MEDIUM 3.1 cna CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
References (7)
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