Description
A vulnerability was identified in nextlevelbuilder GoClaw up to 3.13.2. Affected is the function isSafeBin of the file internal/tools/exec_approval.go. The manipulation leads to improper authorization. It is possible to initiate the attack remotely. The exploit is publicly available and might be used.
Published: 2026-07-18
Score: 5.3 Medium
EPSS: < 1% Very Low
KEV: No
Impact: n/a
Action: n/a
AI Analysis

Impact

The flaw resides in the isSafeBin function of internal/tools/exec_approval.go, where the code fails to enforce proper authorization checks before allowing binary execution. This improper authorization can be triggered remotely, permitting an attacker to execute arbitrary binaries on the host and thereby compromise confidentiality, integrity, and potentially availability of the affected system. The weakness is rooted in the principles covered by CWE‑266 and CWE‑285, which describe compromised access control mechanisms.

Affected Systems

Nextlevelbuilder’s GoClaw application, in all releases up to and including version 3.13.2, is impacted. Users running any legacy instance of this tool are susceptible to the vulnerability.

Risk and Exploitability

The CVSS score of 5.3 indicates a moderate severity, but the EPSS score of less than 1% shows only a low probability of widespread exploitation. Nevertheless, a publicly documented exploit exists, and the vulnerability can be leveraged from a remote context, making it a valid security concern. The issue is not listed in the CISA KEV catalog, yet its remote nature and available exploit code suggest that administrators should treat it with priority proportional to their exposure risk.

Generated by OpenCVE AI on July 30, 2026 at 23:00 UTC.

Remediation

No vendor fix or workaround currently provided.

OpenCVE Recommended Actions

  • Upgrade GoClaw to a version newer than 3.13.2 once an official fix is released by the vendor.
  • Restrict external access to the API endpoints that trigger exec_approval to trusted networks or require strong authentication.
  • Audit and enforce role‑based access controls to ensure that only authorized users can initiate binary execution via GoClaw.

Generated by OpenCVE AI on July 30, 2026 at 23:00 UTC.

Tracking

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Advisories

No advisories yet.

History

Mon, 20 Jul 2026 15:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'poc', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Sat, 18 Jul 2026 14:45:00 +0000

Type Values Removed Values Added
Description A vulnerability was identified in nextlevelbuilder GoClaw up to 3.13.2. Affected is the function isSafeBin of the file internal/tools/exec_approval.go. The manipulation leads to improper authorization. It is possible to initiate the attack remotely. The exploit is publicly available and might be used.
Title nextlevelbuilder GoClaw exec_approval.go isSafeBin improper authorization
First Time appeared Nextlevelbuilder
Nextlevelbuilder goclaw
Weaknesses CWE-266
CWE-285
CPEs cpe:2.3:a:nextlevelbuilder:goclaw:*:*:*:*:*:*:*:*
Vendors & Products Nextlevelbuilder
Nextlevelbuilder goclaw
References
Metrics cvssV2_0

{'score': 6.5, 'vector': 'AV:N/AC:L/Au:S/C:P/I:P/A:P/E:POC/RL:ND/RC:C'}

cvssV3_0

{'score': 6.3, 'vector': 'CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L/E:P/RL:X/RC:C'}

cvssV3_1

{'score': 6.3, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L/E:P/RL:X/RC:C'}

cvssV4_0

{'score': 5.3, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P'}


Subscriptions

Nextlevelbuilder Goclaw
cve-icon MITRE

Status: PUBLISHED

Assigner: VulDB

Published:

Updated: 2026-07-20T15:07:57.237Z

Reserved: 2026-07-17T15:56:53.703Z

Link: CVE-2026-16121

cve-icon Vulnrichment

Updated: 2026-07-20T15:07:52.695Z

cve-icon NVD

No data.

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-07-30T23:00:22Z

Weaknesses
  • CWE-266

    Incorrect Privilege Assignment

  • CWE-285

    Improper Authorization