CVE-2026-58209
NATS Server: MQTT retained and QoS replay bypass subscribe deny filters
4.3
MEDIUM
CVSS 3.1
EPSS 0.34%
描述
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.
如何修補 CVE-2026-58209
要修補 CVE-2026-58209,請將受影響套件升級到下列已修補版本。
- —升級至 2.12.12 或更新版本
CVE-2026-58209 正在被利用嗎?
低 — EPSS 為 0.3%,目前沒有觀察到大規模利用活動。
受影響套件(1)
- from 0, < 2.12.12, >= 2.14.0, < 2.14.3
CVSS 分數
| 來源 | 版本 | 嚴重程度 | 向量 |
|---|---|---|---|
| osv | CVSS 3.1 | MEDIUM4.3 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N |