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AWS apigateway documentation change

Service: apigateway · 2026-06-13 · Documentation low

File: apigateway/latest/developerguide/api-gateway-execution-service-limits-table.md

Summary

Increased maximum header size limit from 10240 to 20480 bytes

Security assessment

This is a service limit adjustment with no security context. Larger headers could potentially be abused in DoS attacks, but the change contains no security advisories, vulnerability fixes, or mitigations. Pure operational update.

Diff

diff --git a/apigateway/latest/developerguide/api-gateway-execution-service-limits-table.md b/apigateway/latest/developerguide/api-gateway-execution-service-limits-table.md
index 7de0ef56a..3378f1428 100644
--- a//apigateway/latest/developerguide/api-gateway-execution-service-limits-table.md
+++ b//apigateway/latest/developerguide/api-gateway-execution-service-limits-table.md
@@ -46 +46 @@ Integration timeout for private APIs | 50 milliseconds - 29 seconds for all inte
-Total combined size of all header values, including header names, values, any line terminators, and whitespaces | 10240 Bytes | No  
+Total combined size of all header values, including header names, values, any line terminators, and whitespaces | 20480 Bytes | No