Description
In Mosquitto through 1.4.12, mosquitto.db (aka the persistence file) is world readable, which allows local users to obtain sensitive MQTT topic information.
Fixed in Linux distributions
Distributions backport fixes, so the version that fixes this vulnerability differs per release — upgrade to at least the version shown. From the distributions' security trackers and advisories.
Debian
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Debian 14 | mosquitto | 1.4.14-1 | — |
| Debian 13 | mosquitto | 1.4.14-1 | — |
| Debian 12 | mosquitto | 1.4.14-1 | — |
| Debian 8 | mosquitto | 1.3.4-2+deb8u3 | DLA-1525-1 |
| Debian 7 | mosquitto | 0.15-2+deb7u2 | DLA-1146-1 |
Ubuntu
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu 16.04 LTS | mosquitto | 1.4.8-1ubuntu0.16.04.2 | — |
| Ubuntu 14.04 LTS | mosquitto | 0.15-2ubuntu1.2 | — |
Alpine
Security tracker ↗| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Alpine v3.24 | mosquitto | 1.4.13-r0 | — |
| Alpine v3.23 | mosquitto | 1.4.13-r0 | — |
| Alpine v3.22 | mosquitto | 1.4.13-r0 | — |
| Alpine v3.21 | mosquitto | 1.4.13-r0 | — |
| Alpine v3.20 | mosquitto | 1.4.13-r0 | — |
Show 15 more (older releases, extended support, other products)Fewer releases
| Release | Package | Fixed in | Advisory |
|---|---|---|---|
| Alpine v3.19 | mosquitto | 1.4.13-r0 | — |
| Alpine v3.18 | mosquitto | 1.4.13-r0 | — |
| Alpine v3.17 | mosquitto | 1.4.13-r0 | — |
| Alpine v3.16 | mosquitto | 1.4.13-r0 | — |
| Alpine v3.15 | mosquitto | 1.4.13-r0 | — |
| Alpine v3.14 | mosquitto | 1.4.13-r0 | — |
| Alpine v3.13 | mosquitto | 1.4.13-r0 | — |
| Alpine v3.12 | mosquitto | 1.4.13-r0 | — |
| Alpine v3.11 | mosquitto | 1.4.13-r0 | — |
| Alpine v3.10 | mosquitto | 1.4.13-r0 | — |
| Alpine v3.9 | mosquitto | 1.4.13-r0 | — |
| Alpine v3.8 | mosquitto | 1.4.13-r0 | — |
| Alpine v3.7 | mosquitto | 1.4.13-r0 | — |
| Alpine v3.6 | mosquitto | 1.4.15-r0 | — |
| Alpine v3.5 | mosquitto | 1.4.15-r0 | — |
Advisories 2
- DLA-1525-1 mosquitto - security update Debian Security (DSA / DLA) · Mar 9, 2026
- DLA-1146-1 mosquitto - security update Debian Security (DSA / DLA) · Mar 9, 2026