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Fencer Vulns
medium 4.3

CVE-2026-16122 json

nextlevelbuilder GoClaw exec_approval.go matchesAllowlist authorization

published 2026-07-18 3 mo ago modified 2026-10-24 15 d ago also EUVD-2026-45383

cvss
4.3
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.3%
EPSS 0.3% chance of exploitation in 30 days, percentile 23%
public exploits
0
none known

Summary

A security flaw has been discovered in nextlevelbuilder GoClaw up to 3.13.2. Affected by this vulnerability is the function extractBin/RequestApproval/matchesAllowlist of the file internal/tools/exec_approval.go. The manipulation results in incorrect authorization. The exploit has been released to the public and may be used for attacks.

CISA SSVC

Exploitation
Proof of concept is public
Automatable
no
Technical impact
partial
Assessed
3 mo ago

Exploit prediction

0.31% chance of exploitation in the next 30 days, higher than 23% of all scored CVEs (FIRST EPSS, 2026-11-08).

Exploits and checks

  • github.com https://github.com/nextlevelbuilder/goclaw/issues/1216 referenced PoC, tagged "exploit" by a source, unverified

CVSS scores

assigned by version score vector
CNA 4.0 4.8 CVSS:4.0/AV:A/AC:L/AT:N/PR:H/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P
CNA 3.1 4.3 CVSS:3.1/AV:A/AC:L/PR:H/UI:N/S:U/C:L/I:L/A:L/E:P/RL:X/RC:C
CNA 3.0 4.3 CVSS:3.0/AV:A/AC:L/PR:H/UI:N/S:U/C:L/I:L/A:L/E:P/RL:X/RC:C
CNA 2.0 4.7 AV:A/AC:L/Au:M/C:P/I:P/A:P/E:POC/RL:ND/RC:C
CNA 4.0 1.9 CVSS:4.0/AV:A/AC:L/AT:N/PR:H/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
CNA 3.1 4.3 CVSS:3.1/AV:A/AC:L/PR:H/UI:N/S:U/C:L/I:L/A:L
CNA 2.0 4.7 AV:A/AC:L/Au:M/C:P/I:P/A:P

Affected products

  • nextlevelbuilder GoClaw

Classification

Weakness

References

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.