From b68ac32580445b261cc8bde5dee8037da9ab6917 Mon Sep 17 00:00:00 2001
From: Vamsi-2581 <245859299+Vamsi-2581@users.noreply.github.com>
Date: Tue, 20 Oct 2026 21:00:36 +0530
Subject: [PATCH] fix(proxy): release Presidio session lock before requests

---
 litellm/proxy/guardrails/guardrail_hooks/presidio.py | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/litellm/proxy/guardrails/guardrail_hooks/presidio.py b/litellm/proxy/guardrails/guardrail_hooks/presidio.py
index cadc9ca689b..cc11c09ec64 100644
--- a/litellm/proxy/guardrails/guardrail_hooks/presidio.py
+++ b/litellm/proxy/guardrails/guardrail_hooks/presidio.py
@@ -388,7 +388,8 @@ class _OPTIONAL_PresidioPIIMasking(CustomGuardrail):
             async with self._session_lock:
                 if self._http_session is None or self._http_session.closed:
                     self._http_session = aiohttp.ClientSession()
-                yield self._http_session
+                session = self._http_session
+            yield session
         else:
             # Background thread/loop -> use loop-bound session cache
             # This avoids "attached to a different loop" or "no running event loop" errors