Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata – not a confirmed exploit chain
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AccessAuthenticate with low-privilege GoClaw account
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ExploitCraft malicious ExecTool.Execute request
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ExecutionBypass improper authorization check
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ImpactAccess or manipulate resources beyond granted privilege
Vulnerability Assessment
| Weakness |
CWE
OWASP Top 10:2025
A01:2025 - Broken Access Control
ASVS 5.0
V8 - Authorization Authorization verification
MITRE ATT&CK
1 technique across 1 tactic: Defense Evasion The technique list with ATT&CK links and the kill-chain view is part of the Basic plan and up. |
| Exploitation Conditions | Exploitation requires a valid low-privileged authenticated account on the target GoClaw instance (consistent with PR:L in the CVSS 4.0 vector). The vulnerable code path is the ExecTool.Execute function in goclaw/internal/tools/credentialed_exec.go, meaning the service must be network-reachable and the attacker must be able to invoke this function. No additional special configuration or non-default deployment mode is indicated as required beyond having credentials. Limiting factors: unauthenticated exploitation is not supported (PR:L rules out PR:N scenarios); the product must be actively deployed and the ExecTool functionality must be in use; impact is bounded to partial (L) confidentiality, integrity, and availability - full system compromise is not indicated by available data. |
| Impact | The CVSS 4.0 score of 2.1 (vector AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P) reflects low real-world severity. While the attack vector is network and complexity is low, exploitation requires a low-privileged authenticated account (PR:L), limiting opportunistic mass exploitation. The E:P modifier confirms a publicly available proof-of-concept, which elevates the likelihood of targeted exploitation in environments where GoClaw is deployed. Impact metrics (VC:L/VI:L/VA:L) indicate only partial compromise of the vulnerable system with no scope change to subsequent systems (SC/SI/SA all N). No KEV listing is present, and no EPSS score was provided in the input data. The combination of a low-privilege prerequisite, limited impact ceiling, and niche product footprint makes this a low-priority item for most organizations, though environments actively using GoClaw should remediate given the public PoC. There is no CVSS 3.x vector in the input - the 3.1 assessment below is independently inferred. |
| Exploit ScenarioDerived | An attacker with a valid low-privileged account on a GoClaw instance sends a crafted request to the ExecTool.Execute function, supplying manipulated parameters that bypass the inadequate authorization check. Because a public proof-of-concept exists in GitHub issue #1215, the mechanics of the manipulation are already publicly documented, lowering the bar for exploitation by less skilled attackers in targeted engagements against known GoClaw deployments. |
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Alert meAnalysisAIv1 – Jul 19, 2026
Improper authorization in nextlevelbuilder GoClaw up to version 3.13.3-beta.3 allows low-privileged remote attackers to bypass access controls via manipulation of the ExecTool.Execute function in credentialed_exec.go. The CVSS 4.0 vector confirms network-accessible exploitation requiring only low-privilege credentials, with limited but confirmed confidentiality, integrity, and availability impact on the vulnerable system. A publicly available proof-of-concept exploit exists (tracked in GitHub issue #1215), though the overall CVSS 4.0 base score of 2.1 reflects constrained real-world impact.
RemediationAI
Upstream fix activity is visible in GitHub issue #1215 (https://github.com/nextlevelbuilder/goclaw/issues/1215) and associated comment thread; however, a tagged patched release version has not been confirmed from the available data, so operators should monitor the repository directly for a corrective release. As a compensating control, restrict access to the GoClaw service to only fully trusted, higher-privileged identities by enforcing authentication at the network or application gateway layer, preventing low-privileged accounts from reaching the ExecTool.Execute endpoint. Additionally, audit existing low-privilege users who have network access to the GoClaw instance and remove unnecessary accounts. If GoClaw is not required in production, consider disabling the service until a verified patch is available. Each of these controls reduces the PR:L attack surface but does not eliminate the underlying authorization flaw.
Affected VersionsENISA
Affected Packages
Source: OSV (Open Source Vulnerabilities)
Affects your stack
Affects 1 package in euvd
Checking this CVE against your own stacks and servers is part of the Basic plan and up.
Technical ContextAI · show details
GoClaw is a Go-based tool developed by nextlevelbuilder. The vulnerability resides in goclaw/internal/tools/credentialed_exec.go within the ExecTool.Execute function, which is responsible for credentialed command or tool execution. CWE-285 (Improper Authorization) identifies the root cause: the function fails to adequately verify that the requesting principal has sufficient permissions for the requested operation, allowing a lower-privileged caller to invoke execution paths intended for higher-privilege roles. The file name 'credentialed_exec' strongly implies this component is a trust boundary - it should enforce authorization before executing privileged operations, but the check is either absent, incomplete, or bypassable. The affected CPE is cpe:2.3:a:nextlevelbuilder:goclaw:*:*:*:*:*:*:*:*, covering all versions through 3.13.3-beta.3.
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Severity by source
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
Network-reachable with low complexity; PR:L because a valid account is required; no scope change; all impacts limited per CVSS 4.0 source data.
Primary rating from Vendor (VulDB).
CVSS VectorVendor: VulDB
Lifecycle Timeline
3DescriptionCVE.org
A flaw has been found in nextlevelbuilder GoClaw up to 3.13.3-beta.3. This affects the function ExecTool.Execute of the file goclaw/internal/tools/credentialed_exec.go. Executing a manipulation can lead to improper authorization. The attack may be launched remotely. The exploit has been published and may be used.
Threat Intelligence Overview
How this decision was reached
The engine reads each signal below and applies a fixed list of rules from top to bottom. The first rule that matches sets the recommended action – like a statement, every line is shown.
What every action level means
SSVC AssessmentENISA
Priority Score
Attack Technique
Authentication bypass attacks exploit flaws in the verification mechanisms that control access to systems and applications.
OS command injection in nextlevelbuilder GoClaw through version 3.11.3 allows remote attackers to execute arbitrary shel
Missing authentication in GoClaw's Webhook Verification Handler allows unauthenticated remote attackers to interact with
Improper authorization in the GoClaw and GoClaw Lite RPC gateway allows unauthenticated remote attackers to invoke privi
Server-side request forgery in GoClaw through 3.15.0-beta.32 allows authenticated remote attackers to bypass the SSRF bl
Path traversal in GoClaw 3.13.3-beta.3 allows authenticated remote attackers to read or write files outside the intended
Incorrect authorization in GoClaw's WebSocket Approval Endpoint allows low-privileged remote attackers to bypass access
GoClaw 3.11.3 by nextlevelbuilder exposes an incomplete blacklist bypass in the ExecApprovalManager.CheckCommand functio
Information disclosure in nextlevelbuilder GoClaw up to version 3.13.3-beta.3 allows remote low-privileged attackers to
Name resolution bypass in GoClaw's exec approval subsystem allows remote low-privileged attackers to circumvent the bina
Incorrect authorization in nextlevelbuilder GoClaw's WebSocket RPC Handler allows authenticated low-privilege remote att
Missing authorization on the Invoke Endpoint in nextlevelbuilder GoClaw up to version 3.13.2 allows low-privileged remot
Improper authorization in nextlevelbuilder GoClaw up to version 3.13.2 allows remote low-privilege authenticated attacke
EUVD-2026-45410
GHSA-gch8-7366-6m32
NVD
CVE.org
EPSS
VulDB
Exploit-DB