CVE-2017-7653

The Eclipse Mosquitto broker up to version 1.4.15 does not reject strings that are not valid UTF-8. A malicious client could cause other clients that do reject invalid UTF-8 strings to disconnect themselves from the broker by sending a topic string which is not valid UTF-8, and so cause a denial of service for the clients.

• CWE-20
• CWE-20

• http://docs.oasis-open.org/mqtt/disallowed-chars/v1.0/disallowed-chars-v1.0.pdfThird Party Advisory
• https://bugs.eclipse.org/bugs/show_bug.cgi?id=532113Issue Tracking, Third Party Advisory
• https://lists.debian.org/debian-lts-announce/2018/09/msg00036.htmlMailing List, Third Party Advisory
• https://usn.ubuntu.com/4023-1/
• https://www.debian.org/security/2018/dsa-4325Third Party Advisory
• http://docs.oasis-open.org/mqtt/disallowed-chars/v1.0/disallowed-chars-v1.0.pdfThird Party Advisory
• https://bugs.eclipse.org/bugs/show_bug.cgi?id=532113Issue Tracking, Third Party Advisory
• https://lists.debian.org/debian-lts-announce/2018/09/msg00036.htmlMailing List, Third Party Advisory
• https://usn.ubuntu.com/4023-1/
• https://www.debian.org/security/2018/dsa-4325Third Party Advisory

Published

Jun 5, 2018

Last Modified

Jun 17, 2026

Status

Modified

• How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
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