Vulnerability · Published Jul 18, 2026 · Assigned by VulDB
CVE-2026-16198Sipeed PicoClaw First Run Setup access_control.go authentication bypass
Medium 5.6
In plain English
A medium-severity authentication bypass in PicoClaw from Sipeed. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.6% (higher than 51% of all known vulnerabilities).
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.
Affected products (as reported)
Weakness: CWE-288, CWE-287 · Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:L/E:P/RL:O/RC:C
References
- VDB-380014 | Sipeed PicoClaw First Run Setup access_control.go authentication bypass vdb-entry, technical-description
- VDB-380014 | CTI Indicators (IOB, IOC, IOA) signature, permissions-required
- CVE-2026-16198 | CVE Analysis and Report third-party-advisory
- Submit #852965 | Sipeed PicoClaw <= v0.2.9 Authentication Bypass Using an Alternate Path or Channel (CWE-288) third-party-advisory
- https://github.com/sipeed/picoclaw/issues/3080 exploit, issue-tracking
- https://github.com/sipeed/picoclaw/pull/3083 issue-tracking, patch
- https://github.com/sipeed/picoclaw/commit/017601354be38cb027ff3ffb01aed79bd5d12610 patch
- https://github.com/sipeed/picoclaw/ product