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Medium severity5.3NVD Advisory· Published Aug 30, 2021· Updated Jun 17, 2026

CVE-2021-34434

CVE-2021-34434

Description

In Eclipse Mosquitto versions 2.0 to 2.0.11, when using the dynamic security plugin, if the ability for a client to make subscriptions on a topic is revoked when a durable client is offline, then existing subscriptions for that client are not revoked.

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Affected products

5
  • Eclipse/Mosquitto3 versions
    cpe:2.3:a:eclipse:mosquitto:*:*:*:*:*:*:*:*+ 2 more
    • cpe:2.3:a:eclipse:mosquitto:*:*:*:*:*:*:*:*range: >=2.0.0,<=2.0.11
    • (no CPE)range: 2.0 - 2.0.11
    • (no CPE)range: 2.0
  • Fedoraproject/Fedora2 versions
    cpe:2.3:o:fedoraproject:fedora:34:*:*:*:*:*:*:*+ 1 more
    • cpe:2.3:o:fedoraproject:fedora:34:*:*:*:*:*:*:*
    • cpe:2.3:o:fedoraproject:fedora:35:*:*:*:*:*:*:*

Patches

Vulnerability mechanics

References

4

News mentions

0

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