CVE-2026-58207
published 2026-07-08CVE-2026-58207: 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…
PriorityP339medium6.5CVSS 3.1
AVNACLPRLUINSUCNINAH
EPSS
0.56%
44.6th percentile
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.
Affected
8 ranges
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| linuxfoundation | nats-server | >= 2.12.0 < 2.12.12 | 2.12.12 |
| linuxfoundation | nats-server | >= 2.14.0 < 2.14.3 | 2.14.3 |
| multicluster-globalhub | multicluster-globalhub-grafana-rhel9 | — | — |
| nats-io | nats-server | < 2.12.12 | 2.12.12 |
| nats-io | nats-server | — | — |
| rhceph | snmp-notifier-rhel10 | — | — |
| rhceph | snmp-notifier-rhel8 | — | — |
| rhceph | snmp-notifier-rhel9 | — | — |
CVSS provenance
nvdv3.16.5MEDIUMCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
vendor_redhat6.5MEDIUM
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Bugzilla
CVE-2026-58207 golang-github-nats-io-streaming-server: NATS Server: Denial of Service via arithmetic overflow in connection monitoring pagination [fedora-all]
bugzilla·2026-07-10·CVSS 6.5
CVE-2026-58207 [MEDIUM] CVE-2026-58207 golang-github-nats-io-streaming-server: NATS Server: Denial of Service via arithmetic overflow in connection monitoring pagination [fedora-all]
CVE-2026-58207 golang-github-nats-io-streaming-server: NATS Server: Denial of Service via arithmetic overflow in connection monitoring pagination [fedora-all]
Disclaimer: Community trackers are created by Red Hat Product Security team on a best effort basis. Package maintainers are required to ascertain if the flaw indeed affects their package, before starting the update process.
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.
Bugzilla
CVE-2026-58207 github.com/nats-io/nats-server: NATS Server: Denial of Service via arithmetic overflow in connection monitoring pagination
bugzilla·2026-07-08·CVSS 6.5
CVE-2026-58207 [MEDIUM] CVE-2026-58207 github.com/nats-io/nats-server: NATS Server: Denial of Service via arithmetic overflow in connection monitoring pagination
CVE-2026-58207 github.com/nats-io/nats-server: NATS Server: Denial of Service via arithmetic overflow in connection monitoring pagination
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.
https://github.com/nats-io/nats-server/commit/2ae047139e37a38cb01e259a67909e7a39fa38e9https://github.com/nats-io/nats-server/commit/894d9411927681d66ce349bf1afe49608dc0c1a3https://github.com/nats-io/nats-server/releases/tag/v2.12.12https://github.com/nats-io/nats-server/releases/tag/v2.14.3https://github.com/nats-io/nats-server/security/advisories/GHSA-q59r-vq66-pxc2
2026-07-08
Published