CVE-2026-15627 nextlevelbuilder CVE debrief

Who should care

Users of nextlevelbuilder GoClaw up to 3.13.3-beta.3 should review and apply patches to prevent potential information disclosure. Affected operators include those using the GoClaw tool, and impacted platforms are those running the vulnerable version. Vulnerability management and security teams should prioritize reviewing the CVE and NVD details for further guidance.

Technical summary

The vulnerability is in the handleNavigate function of pkg/browser/tool.go in nextlevelbuilder GoClaw up to 3.13.3-beta.3. The manipulation of the args.targetUrl argument can lead to information disclosure. The attack can be performed remotely. The vulnerability has a CVSS score of 2.1 and is classified as low severity. There is no information on patching or mitigation strategies available. Affected product deployments should be reviewed for potential exposure, and owners should be assigned for follow-up. The official advisory or CVE record should be consulted to validate affected scope, severity, and vendor guidance. Additionally, compensating controls for exposed systems should be considered while remediation is scheduled and verified.

Defensive priority

Low priority due to CVSS score of 2.1, but review and apply patches as soon as possible to prevent potential information disclosure.

Recommended defensive actions

• Review and apply patches for nextlevelbuilder GoClaw up to 3.13.3-beta.3
• Monitor for potential remote attacks
• Verify the integrity of pkg/browser/tool.go
• Perform a thorough review of the affected system
• Check relevant monitoring, detection, and logs for exposed assets
• Track exceptions and retest remediated assets
• Consider compensating controls for exposed systems

Evidence notes

The CVE record was published on 2026-07-14T04:17:15.857Z and has not been modified since then. The NVD entry is currently Received. The vulnerability affects nextlevelbuilder GoClaw up to 3.13.3-beta.3, specifically the handleNavigate function in pkg/browser/tool.go. The manipulation of the args.targetUrl argument can lead to information disclosure. The attack can be performed remotely. Evidence is limited to CVE and NVD details.

Sources and references

Methodology and review provenance

AI-assisted synthesis based on stored public vulnerability evidence. System validation, approval state, and publication status do not by themselves establish human review of this revision. PatchSiren helps prioritize defensive review and does not prove exposure or remediation on any system.