Auth bypass in Nextlevelbuilder Goclaw
CVE-2026-16121
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 · last modified .
CVSS v3 metric
CVSS v3 base score 6.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L.
EPSS exploit prediction
EPSS: 0.004 (28.9th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 29th percentile — 28.9% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.004 · newest: 0.004 · change: 0.000
Affected products
- Nextlevelbuilder Goclaw — versions 3.13.0, 3.13.1, 3.13.2
Weakness classification (CWE)
References
- vuldb.com/vuln/379830 (technical-description, vdb-entry)
- vuldb.com/vuln/379830/cti (signature, permissions-required)
- vuldb.com/cve/CVE-2026-16121 (third-party-advisory)
- vuldb.com/submit/856827 (third-party-advisory)
- github.com/nextlevelbuilder/goclaw/issues/1214 (issue-tracking, exploit)
- github.com/nextlevelbuilder/goclaw/issues/1206 (issue-tracking)
- github.com/nextlevelbuilder/goclaw/ (product)
Frequently asked questions
- What is CVE-2026-16121?
- CVE-2026-16121 is a medium-severity vulnerability in Nextlevelbuilder Goclaw, classified under Incorrect Privilege Assignment. CVSS score: 6.3/10. Published 2026-07-18.
- How severe is CVE-2026-16121?
- Medium severity. CVSS v3 base score is 6.3 out of 10.