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, MQTT retained message delivery and QoS1+ durable replay could deliver messages whose original topics matched a subscriber configured subscribe deny rule because these delivery paths did not consistently recheck the concrete original topic before sending the MQTT PUBLISH to the subscriber. This issue is fixed in versions 2.14.3 and 2.12.12.
Metrics
Affected Vendors & Products
References
History
Fri, 10 Jul 2026 09:30:00 +0000
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Nats
Nats nats Server |
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| Vendors & Products |
Nats
Nats nats Server |
Thu, 09 Jul 2026 14:30:00 +0000
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| Metrics |
ssvc
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Wed, 08 Jul 2026 20:15:00 +0000
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| Description | 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, MQTT retained message delivery and QoS1+ durable replay could deliver messages whose original topics matched a subscriber configured subscribe deny rule because these delivery paths did not consistently recheck the concrete original topic before sending the MQTT PUBLISH to the subscriber. This issue is fixed in versions 2.14.3 and 2.12.12. | |
| Title | NATS Server: MQTT retained and QoS replay bypass subscribe deny filters | |
| Weaknesses | CWE-863 | |
| References |
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| Metrics |
cvssV3_1
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Status: PUBLISHED
Assigner: GitHub_M
Published: 2026-07-08T20:12:11.240Z
Updated: 2026-07-09T13:31:07.445Z
Reserved: 2026-06-29T17:09:25.872Z
Link: CVE-2026-58209
Updated: 2026-07-09T13:30:52.376Z
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