header_mutation: fix the uri query encoding#43502
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botengyao merged 3 commits intoenvoyproxy:mainfrom Feb 18, 2026
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Signed-off-by: Boteng Yao <boteng@google.com>
Signed-off-by: Boteng Yao <boteng@google.com>
Signed-off-by: Boteng Yao <boteng@google.com>
agrawroh
approved these changes
Feb 18, 2026
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Fixed a issue where query parameter values added via
query_parameter_mutationswere not URL-encoded, allowing query parameter injection attacks. Values from formatters like%REQ(header)%are now properly URL-encoded when added to the query string. This behavior is controlled by the runtime guardenvoy.reloadable_features.header_mutation_url_encode_query_params.Commit Message:
Additional Description:
Risk Level: low
Testing:
Docs Changes:
Release Notes:
Platform Specific Features:
[Optional Runtime guard:]
[Optional Fixes #Issue]
[Optional Fixes commit #PR or SHA]
[Optional Deprecated:]
[Optional API Considerations:]