Security Vulnerability in nextlevelbuilder GoClaw Software
CVE-2026-16120

5.3MEDIUM

Key Information:

Vendor

Nextlevelbuilder

Status
Goclaw
Vendor
CVE Published:
18 July 2026

Badges

👾 Exploit Exists🟡 Public PoC

What is CVE-2026-16120?

A vulnerability has been identified in nextlevelbuilder GoClaw up to version 3.13.3-beta.3, affecting the matchesAllowlist/extractBin function located in internal/tools/exec_approval.go. This vulnerability allows for the potential exploitation to execute manipulations resulting in improperly resolved names. The attack can be executed remotely, and the details have been publicly disclosed, making it crucial for users to be aware of the risks associated with this flaw.

Affected Version(s)

GoClaw 3.13.3-beta.0

GoClaw 3.13.3-beta.1

GoClaw 3.13.3-beta.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-2026-16120 - Proof of Concept

References

https://vuldb.com/vuln/379829
vdb-entrytechnical-description
https://vuldb.com/vuln/379829/cti
signaturepermissions-required
https://vuldb.com/cve/CVE-2026-16120
third-party-advisory

CVSS V4

Score:
5.3
Severity:
MEDIUM
Confidentiality:
Low
Integrity:
Low
Availability:
Low
Attack Vector:
Network
Attack Complexity:
Low
Attack Required:
None
Privileges Required:
Undefined
User Interaction:
None

Timeline

  • 🟡

    Public PoC available

  • 👾

    Exploit known to exist

  • Vulnerability published

  • Vulnerability Reserved

Credit

Erichen (VulDB User)
.