From cbe71b3400f49d6bff3ef9a4baaf97750c15c2d7 Mon Sep 17 00:00:00 2001
From: Kadir Can Ozden <101993364+bysiber@users.noreply.github.com>
Date: Fri, 20 Feb 2026 06:06:49 +0300
Subject: [PATCH] Release HTTP/2 semaphore permit on NoAvailableStreamIDError

---
 httpcore/_async/http2.py | 1 +
 httpcore/_sync/http2.py  | 1 +
 2 files changed, 2 insertions(+)

diff --git a/httpcore/_async/http2.py b/httpcore/_async/http2.py
index dbd0beeb..9c1482e6 100644
--- a/httpcore/_async/http2.py
+++ b/httpcore/_async/http2.py
@@ -136,6 +136,7 @@ async def handle_async_request(self, request: Request) -> Response:
         except h2.exceptions.NoAvailableStreamIDError:  # pragma: nocover
             self._used_all_stream_ids = True
             self._request_count -= 1
+            await self._max_streams_semaphore.release()
             raise ConnectionNotAvailable()
 
         try:
diff --git a/httpcore/_sync/http2.py b/httpcore/_sync/http2.py
index ddcc1890..d22e0fda 100644
--- a/httpcore/_sync/http2.py
+++ b/httpcore/_sync/http2.py
@@ -136,6 +136,7 @@ def handle_request(self, request: Request) -> Response:
         except h2.exceptions.NoAvailableStreamIDError:  # pragma: nocover
             self._used_all_stream_ids = True
             self._request_count -= 1
+            self._max_streams_semaphore.release()
             raise ConnectionNotAvailable()
 
         try: