CVE-2026-58251
NATS Server: Queue Subscribe Authz Bypass
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.
No summary for this CVE yet.
CVSS Vector Breakdown
Exploitability
AV:NAttack VectorNetwork
AC:LAttack ComplexityLow
PR:LPrivileges RequiredLow
UI:NUser InteractionNone
Scope
S:UScopeUnchanged
Impact
C:HConfidentialityHigh
I:NIntegrityNone
A:NAvailabilityNone
Weaknesses
Affected Products
nats-io
oss-project
linuxfoundation
oss-project·USaka yocto, pytorch, everest
Exploitability
Official Patch Available
References
https://github.com/nats-io/nats-server/security/advisories/GHSA-jx8g-9g95-6322
github.com
https://github.com/nats-io/nats-server/commit/013586288078def45a6788096924eb4d150db65c
github.com
https://github.com/nats-io/nats-server/commit/79c2f6e9ff87f594596337b6427dda85c38d1fe1
github.com
and 4 more references View all →
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