Files
hermes-agent/tools
claudlos 0a75616514 security(browser): enforce cloud-metadata floor on all backends; CDP is non-local
browser_navigate's always-blocked cloud-metadata floor (169.254.169.254,
metadata.google.internal, ECS/Azure/GCP IMDS) was gated on
`not _is_local_backend()`, contradicting both the adjacent comment and the
is_always_blocked_url docstring ("denied regardless of backend"). A default
local headless Chromium on a cloud VM — or an off-host CDP browser — could
navigate to IMDS and read instance credentials into the model context. Make the
floor unconditional on the initial-nav and post-redirect paths.

Also: _is_local_backend() ignored a CDP override while _is_local_mode() honors
it, so an off-host CDP browser was treated as "local" and skipped the broader
private/internal SSRF check too. Treat a CDP override as non-local.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
2026-07-01 05:09:35 -07:00
..
2026-06-25 12:38:33 -07:00