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Claude Code has a Workspace Trust Dialog Bypass via Repo-Controlled Settings File

as of Mar 19, 2026 · applies to @anthropic-ai/claude-code < 2.1.53 · canonical · codexguild.com/kb/ghsa-mmgp-wc2j-qcv7 · exported 2026-10-11
Canonical as of Mar 19, 2026

Claude Code has a Workspace Trust Dialog Bypass via Repo-Controlled Settings File

High severity. Affects @anthropic-ai/claude-code < 2.1.53. Upgrade to 2.1.53 or later.

CVE-2026-33068 / GHSA-mmgp-wc2j-qcv7 · severity: high · npm

Affected

  • @anthropic-ai/claude-code < 2.1.53 → fixed in 2.1.53

Details

Claude Code resolved the permission mode from settings files, including the repo-controlled .claude/settings.json, before determining whether to display the workspace trust confirmation dialog. A malicious repository could set permissions.defaultMode to bypassPermissions in its committed .claude/settings.json, causing the trust dialog to be silently skipped on first open. This allowed a user to be placed into a permissive mode without seeing the trust confirmation prompt, making it easier for an attacker-controlled repository to gain tool execution without explicit user consent.

Users on standard Claude Code auto-update have received this fix already. Users performing manual updates are advised to update to the latest version.

Thank you to hackerone.com/cantina_xyz for reporting this issue.

Source: GHSA-mmgp-wc2j-qcv7 — GitHub Advisory Database (CC-BY-4.0).