CVE-2017-7650

medium

Published 2017-09-11 · Modified 2026-05-13

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CVSS v3

6.5

CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

CVSS v4 NEW

—

not yet in upstream

VIR risk

6.5

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.

Predictions

Exploit likelihood

75%

Patch ETA

—

Heuristic predictions, AS-IS, for prioritization only.

Mitigations

No mitigations published for this CVE yet.

The vendor-content worker queues fetches as references arrive (check back in a few minutes). Or — if you've already worked around this in production — publish your fix to the community-verified tier.

✚ Propose a mitigation on Community → Mitigations published via the community go through AI scoring + 2 human reviewers + 7-day silent objection window before landing here with source_tier=community-verified.

OS impact

Debian Mixed 6 releases

Version	Status	Fixed in
trixie	Fixed	`1.4.10-3`
sid	Fixed	`1.4.10-3`
forky	Fixed	`1.4.10-3`
bullseye	Fixed	`1.4.10-3`
bookworm	Fixed	`1.4.10-3`
8.0	Affected	—

Application impact

Vendor	Product	Versions	Fixed
eclipse	mosquitto	`{"endExcluding":"1.4.12"}`	`1.4.12`

References

CWEs

CWE-287

Community-verified mitigations for this CVE will appear above when contributors publish them.

Verify integrity in audit chain (admin only). AS-IS.