Bug 2498265 (CVE-2026-58207) - CVE-2026-58207 github.com/nats-io/nats-server: NATS Server: Denial of Service via arithmetic overflow in connection monitoring pagination
Summary: CVE-2026-58207 github.com/nats-io/nats-server: NATS Server: Denial of Service...
Keywords:
Status: NEW
Alias: CVE-2026-58207
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
medium
medium
Target Milestone: ---
Assignee: Product Security
QA Contact:
URL:
Whiteboard:
Depends On: 2498990 2498991
Blocks:
TreeView+ depends on / blocked
 
Reported: 2026-07-08 21:02 UTC by OSIDB Bzimport
Modified: 2026-07-10 13:39 UTC (History)
12 users (show)

Fixed In Version:
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Description OSIDB Bzimport 2026-07-08 21:02:57 UTC 
NATS Server is a high-performance server for NATS.io, the cloud and edge native messaging system. Prior to 2.14.3 and 2.12.12, a client able to send account-scoped connection monitoring requests could crash the server by supplying Connz pagination Offset and Limit values that overflowed internal arithmetic before the response window was safely bounded. This issue is fixed in versions 2.14.3 and 2.12.12.
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