security: add CSRF token protection (signed double-submit cookie)#702
Merged
security: add CSRF token protection (signed double-submit cookie)#702
Conversation
Add stateless CSRF protection using the Signed Double-Submit Cookie pattern with HMAC-SHA256 signatures keyed on JWT_SECRET. - New csrf.ts middleware: generates/validates signed tokens - Token format: <nonce>.<hmac_signature>, base64url-encoded - Header validation (X-CSRF-Token) with form body fallback (_csrf) - Exempt: safe methods, auth routes, public forms, bearer-only requests - Admin layout auto-attaches tokens to HTMX and fetch requests - 40 unit tests + E2E test updates for CSRF compatibility Fixes VULN-006
This file contains hidden or bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment
2 participants
Add this suggestion to a batch that can be applied as a single commit.This suggestion is invalid because no changes were made to the code.Suggestions cannot be applied while the pull request is closed.Suggestions cannot be applied while viewing a subset of changes.Only one suggestion per line can be applied in a batch.Add this suggestion to a batch that can be applied as a single commit.Applying suggestions on deleted lines is not supported.You must change the existing code in this line in order to create a valid suggestion.Outdated suggestions cannot be applied.This suggestion has been applied or marked resolved.Suggestions cannot be applied from pending reviews.Suggestions cannot be applied on multi-line comments.Suggestions cannot be applied while the pull request is queued to merge.Suggestion cannot be applied right now. Please check back later.
Summary
Cherry-picked from #668 by @mmcintosh
Adds CSRF token protection using a signed double-submit cookie pattern to protect against cross-site request forgery attacks.
Attribution
Closes #668
🤖 Generated with Claude Code