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BREW-openclaw-cli-CVE-2026-33581 — OpenClaw's message tool media parameter bypasses tool policy filesystem isolation

Affected: Homebrew: openclaw-cli

## Summary

The message tool accepted `mediaUrl` and `fileUrl` aliases without applying the same sandbox localRoots validation as the canonical media path handling.

## Impact

A caller constrained to sandbox media roots could read arbitrary local files by routing them through the alias parameters.

## Affected Component

`src/infra/outbound/message-action-params.ts, src/infra/outbound/message-action-runner.ts`

## Fixed Versions

- Affected: `< 2026.3.24` - Patched: `>= 2026.3.24` - Latest stable `2026.3.28` contains the fix.

## Fix

Fixed by commit `1d7cb6fc03` (`fix: close sandbox media root bypass for mediaUrl/fileUrl aliases`).

OpenClaw thanks @AntAISecurityLab for reporting.

cnvd-2026-17892

EUVD-2026-374802

fkie_cve-2026-33581

OpenClaw before 2026.3.24 contains a sandbox bypass vulnerability in the message tool that allows attackers to read arbitrary local files by using mediaUrl and fileUrl alias parameters that bypass localRoots validation. Remote attackers can exploit this by routing file requests through unvalidated alias parameters to access files outside the intended sandbox directory.

GHSA-v8wv-jg3q-qwpq — OpenClaw's message tool media parameter bypasses tool policy filesystem isolation

Affected: npm: openclaw