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CVE-2026-58251

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 with subscription deny permissions could bypass a plain subject deny rule by using a queue subscription, because queue-specific deny evaluation could override the plain subject deny result when the queue name itself was not denied. This issue is fixed in versions 2.14.0, 2.12.7, and 2.11.16.

Metadata

CVE ID
CVE-2026-58251
State
PUBLISHED
Assigner
GitHub_M
Reserved
2026-06-29 21:54 UTC
Published
2026-07-08 19:40 UTC
Last updated
2026-07-08 19:40 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-RC.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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