CVE-2017-7650
MEDIUM6.5EPSS 4.0%mosquitto - security update
Published: 9/11/2017Modified: 4/28/2026
Description
In Mosquitto before 1.4.12, pattern based ACLs can be bypassed by clients that set their username/client id to '#' or '+'. This allows locally or remotely connected clients to access MQTT topics that they do have the rights to. The same issue may be present in third party authentication/access control plugins for Mosquitto.
Affected packages (4)
- Alpine/mosquittofrom 0, < 1.4.12-r0
- Debian/mosquittofrom 0, < 1.4.10-3
- Debian/mosquittofrom 0, < 0.15-2+deb7u1
- Debian/mosquittofrom 0, < 1.3.4-2+deb8u1
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | MEDIUM6.5 | CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N |