Bug 2498262 (CVE-2026-58252) - CVE-2026-58252 github.com/nats-io/nats-server: NATS Server: Information disclosure via access control bypass in wildcard and queue subscriptions
Summary: CVE-2026-58252 github.com/nats-io/nats-server: NATS Server: Information discl...
Keywords:
Status: NEW
Alias: CVE-2026-58252
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
medium
medium
Target Milestone: ---
Assignee: Product Security
QA Contact:
URL:
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Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2026-07-08 21:02 UTC by OSIDB Bzimport
Modified: 2026-07-13 06:54 UTC (History)
0 users

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Description OSIDB Bzimport 2026-07-08 21:02:46 UTC 
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.
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