CVE-2026-16198 Sipeed PicoClaw First Run Setup access_control.go authentication bypass
Remote attackers can bypass authentication in Sipeed PicoClaw First Run Setup by manipulating allowed_cidrs, requiring a patch to secure the device.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-16198?
CVE-2026-16198 is a medium-severity authentication bypass vulnerability in Sipeed PicoClaw, published on 18 Jul 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.
Official description
A vulnerability was detected in Sipeed PicoClaw up to 0.2.9. The impacted element is an unknown function of the file web/backend/middleware/access_control.go of the component First Run Setup. Performing a manipulation of the argument allowed_cidrs results in authentication bypass using alternate channel. The attack may be initiated remotely. The attack's complexity is rated as high. The exploitability is regarded as difficult. The exploit is now public and may be used. The patch is named 017601354be38cb027ff3ffb01aed79bd5d12610. Applying a patch is the recommended action to fix this issue.
Which versions are affected by CVE-2026-16198?
How do I fix CVE-2026-16198?
No fix has been published for CVE-2026-16198 yet. Limit exposure of the affected software until one is available.
Upgrade, and rotate credentials and sessions that may have been exposed. More about Authentication bypass.
Is CVE-2026-16198 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-16198 exists.
Sources
Also known as GHSA-367p-r6p3-qqmv.