fix(deps): update module github.com/eclipse/paho.mqtt.golang to v1.5.1 [security] #162
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…1 [security] | datasource | package | from | to | | ---------- | ----------------------------------- | ------ | ------ | | go | github.com/eclipse/paho.mqtt.golang | v1.5.0 | v1.5.1 | Signed-off-by: renovate-sh-app[bot] <219655108+renovate-sh-app[bot]@users.noreply.github.com>
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This PR contains the following updates:
v1.5.0->v1.5.1GitHub Vulnerability Alerts
CVE-2025-10543
In Eclipse Paho Go MQTT v3.1 library (paho.mqtt.golang) versions <=1.5.0 UTF-8 encoded strings, passed into the library, may be incorrectly encoded if their length exceeds 65535 bytes. This may lead to unexpected content in packets sent to the server (for example, part of an MQTT topic may leak into the message body in a PUBLISH packet).
The issue arises because the length of the data passed in was converted from an int64/int32 (depending upon CPU) to an int16 without checks for overflows. The int16 length was then written, followed by the data (e.g. topic). This meant that when the data (e.g. topic) was over 65535 bytes then the amount of data written exceeds what the length field indicates. This could lead to a corrupt packet, or mean that the excess data leaks into another field (e.g. topic leaks into message body).
Eclipse Paho Go MQTT may incorrectly encode strings if length exceeds 65535 bytes
CVE-2025-10543 / GHSA-32fw-gq77-f2f2
More information
Details
In Eclipse Paho Go MQTT v3.1 library (paho.mqtt.golang) versions <=1.5.0 UTF-8 encoded strings, passed into the library, may be incorrectly encoded if their length exceeds 65535 bytes. This may lead to unexpected content in packets sent to the server (for example, part of an MQTT topic may leak into the message body in a PUBLISH packet).
The issue arises because the length of the data passed in was converted from an int64/int32 (depending upon CPU) to an int16 without checks for overflows. The int16 length was then written, followed by the data (e.g. topic). This meant that when the data (e.g. topic) was over 65535 bytes then the amount of data written exceeds what the length field indicates. This could lead to a corrupt packet, or mean that the excess data leaks into another field (e.g. topic leaks into message body).
Severity
CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:NReferences
This data is provided by OSV and the GitHub Advisory Database (CC-BY 4.0).
Release Notes
eclipse/paho.mqtt.golang (github.com/eclipse/paho.mqtt.golang)
v1.5.1Compare Source
This is a minor release incorporating changes made in the 14 months since v1.5.0 (including updating dependencies, and raising the Go version to 1.24). The changes are relatively minor but address a potential security issue, possible panic, enable users to better monitor the connection status, and incorporate a few optimisations.
Thanks to those who have provided fixes/enhancements included in this release!
Special thanks to Paul Gerste at Sonar for reporting issue #730 via the Eclipse security team (fix was implemented in PR #714 in May, github issue created just prior to this release). This issue arose where a topic > 65535 bytes was passed to the
Publishfunction, due to the way the data was encoded the topic could leak into the message body. Please see issue #730 for further details.What's Changed
Full Changelog: eclipse-paho/paho.mqtt.golang@v1.5.0...v1.5.1
Configuration
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