CVE-2026-58213

NATS Server is a high-performance server for NATS.io, the cloud and edge native messaging system. Prior to 2.14.1 and 2.12.9, an MQTT client could include protocol control characters in subscription filters that were later forwarded as NATS protocol data to route or leafnode connections, corrupting the forwarded protocol stream and allowing injection of unintended NATS protocol operations. This issue is fixed in versions 2.14.1 and 2.12.9.
Configurations

Configuration 1 (hide)

OR cpe:2.3:a:linuxfoundation:nats-server:*:*:*:*:*:*:*:*
cpe:2.3:a:linuxfoundation:nats-server:*:*:*:*:*:*:*:*

History

13 Jul 2026, 15:16

Type Values Removed Values Added
CPE cpe:2.3:a:linuxfoundation:nats-server:*:*:*:*:*:*:*:*
First Time Linuxfoundation nats-server
Linuxfoundation
References () https://github.com/nats-io/nats-server/commit/366837cfc65ab9ccb4f98193c65e8daf238582d8 - () https://github.com/nats-io/nats-server/commit/366837cfc65ab9ccb4f98193c65e8daf238582d8 - Patch
References () https://github.com/nats-io/nats-server/commit/64ebae40051ee497c481e10f316238faf0de1736 - () https://github.com/nats-io/nats-server/commit/64ebae40051ee497c481e10f316238faf0de1736 - Patch
References () https://github.com/nats-io/nats-server/commit/f14856b9e57a36818f43851cb69b6e33670885c9 - () https://github.com/nats-io/nats-server/commit/f14856b9e57a36818f43851cb69b6e33670885c9 - Patch
References () https://github.com/nats-io/nats-server/pull/8163 - () https://github.com/nats-io/nats-server/pull/8163 - Issue Tracking, Patch
References () https://github.com/nats-io/nats-server/pull/8164 - () https://github.com/nats-io/nats-server/pull/8164 - Issue Tracking, Patch
References () https://github.com/nats-io/nats-server/releases/tag/v2.12.9 - () https://github.com/nats-io/nats-server/releases/tag/v2.12.9 - Release Notes
References () https://github.com/nats-io/nats-server/releases/tag/v2.14.1 - () https://github.com/nats-io/nats-server/releases/tag/v2.14.1 - Release Notes
References () https://github.com/nats-io/nats-server/security/advisories/GHSA-qrcv-3558-gj4f - () https://github.com/nats-io/nats-server/security/advisories/GHSA-qrcv-3558-gj4f - Vendor Advisory

08 Jul 2026, 20:16

Type Values Removed Values Added
New CVE

Information

Published : 2026-07-08 20:16

Updated : 2026-07-13 15:16


NVD link : CVE-2026-58213

Mitre link : CVE-2026-58213

CVE.ORG link : CVE-2026-58213


JSON object : View

Products Affected

linuxfoundation

  • nats-server
CWE
CWE-74

Improper Neutralization of Special Elements in Output Used by a Downstream Component ('Injection')