Authentication Bypass Vulnerability in Sipeed PicoClaw Software
CVE-2026-16198

6.3MEDIUM

Key Information:

Vendor

Sipeed

Status
Picoclaw
Vendor
CVE Published:
18 July 2026

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2026-16198?

A vulnerability in Sipeed PicoClaw affects versions up to 0.2.9, specifically in an unknown function of the web/backend/middleware/access_control.go file related to the First Run Setup component. This flaw allows for an authentication bypass by manipulating the allowed_cidrs attribute, facilitating remote exploitation via an alternate channel. Due to the complexity of this vulnerability, it is advisable for users to apply the provided patch (017601354be38cb027ff3ffb01aed79bd5d12610) promptly to secure their systems.

Affected Version(s)

PicoClaw 0.2.0

PicoClaw 0.2.1

PicoClaw 0.2.2

Exploit Proof of Concept (PoC)

PoC code is written by security researchers to demonstrate the vulnerability can be exploited. PoC code is also a key component for weaponization which could lead to ransomware.

CVE-2026-16198 - Proof of Concept

References

https://vuldb.com/vuln/380014
vdb-entrytechnical-description
https://vuldb.com/vuln/380014/cti
signaturepermissions-required
https://vuldb.com/cve/CVE-2026-16198
third-party-advisory

CVSS V4

Score:
6.3
Severity:
MEDIUM
Confidentiality:
Low
Integrity:
Low
Availability:
Low
Attack Vector:
Network
Attack Complexity:
High
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
None

Timeline

  • 🟡

    Public PoC available

  • 👾

    Exploit known to exist

  • Vulnerability published

  • Vulnerability Reserved

Credit

Eric-i (VulDB User)
.