GHSA-49cg-279w-m73x

## Summary

Empty approver lists could grant explicit approval authorization.

## Affected Packages / Versions

- Package: `openclaw` - Ecosystem: npm - Affected versions: `< 2026.4.12` - Patched versions: `>= 2026.4.12`

## Impact

For helper-backed channels, an empty resolved approver list could be interpreted as explicit approval authorization, allowing a sender outside the normal channel authorization gate to resolve pending approvals if they knew an approval id.

## Technical Details

The fix prevents empty approver lists from granting explicit approval authorization and adds regression coverage for unauthorized senders.

## Fix

The issue was fixed in #65714. The first stable tag containing the fix is `v2026.4.12`, and `openclaw@2026.4.14` includes the fix.

## Fix Commit(s)

- `0a105c0900de701d2ee9f1abc96b017afbd0afdd` - PR: #65714

## Release Process Note

Users should upgrade to `openclaw` 2026.4.12 or newer. The latest npm release, `2026.4.14`, already includes the fix.

## Credits

Thanks to @anshumanbh for reporting this issue.