Sign URL query parameters in API request signatures (v2) - #90
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Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
glaubinix
reviewed
May 6, 2026
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
jdworschak
marked this pull request as ready for review
May 7, 2026 11:27
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The HMAC signature plugin used to sign only the request method, host, path, and body. Query-string parameters appended to GET URLs (e.g. pagination) were not covered. An MITM could tamper with them without invalidating the signature.
Updates the plugin to emit
Version=2in the Authorization header and include URL query parameters in the signed payload.