CVE-2026-15318 Sipeed PicoClaw MQTT Channel mqtt.go authorization
Remote attackers can bypass authorization in the MQTT channel handler by manipulating the client_id argument in Sipeed PicoClaw devices.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-15318?
CVE-2026-15318 is a medium-severity missing authorization vulnerability in Sipeed PicoClaw, published on 10 Jul 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
A weakness has been identified in Sipeed PicoClaw up to 0.2.9. Affected by this issue is some unknown functionality of the file pkg/channels/mqtt/mqtt.go of the component MQTT Channel Handler. This manipulation of the argument client_id causes incorrect authorization. The attack is possible to be carried out remotely. The exploit has been made available to the public and could be used for attacks. The reported GitHub issue was closed automatically due to inactivity.
Which versions are affected by CVE-2026-15318?
How do I fix CVE-2026-15318?
No fix has been published for CVE-2026-15318 yet. Limit exposure of the affected software until one is available.
Upgrade, and check permissions on every request on the server, not only in the interface. More about Missing authorization.
Is CVE-2026-15318 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-15318 exists.
Sources
Also known as GHSA-8f88-w9gq-227v.