From 7b5ef3e5e5e0316b90ddabb25d3879908bbed75b Mon Sep 17 00:00:00 2001
From: Jeremiah Lowin <153965+jlowin@users.noreply.github.com>
Date: Fri, 20 Jun 2025 11:50:16 -0400
Subject: [PATCH] Use specific ValidationError instead of broad Exception catch
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Addresses PR feedback to use more specific exception handling for
URL validation failures.

🤖 Generated with [Claude Code](https://claude.ai/code)

Co-Authored-By: Claude <noreply@anthropic.com>
---
 src/fastmcp/server/auth/providers/bearer.py | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/src/fastmcp/server/auth/providers/bearer.py b/src/fastmcp/server/auth/providers/bearer.py
index e544802f9..a4f3a8e48 100644
--- a/src/fastmcp/server/auth/providers/bearer.py
+++ b/src/fastmcp/server/auth/providers/bearer.py
@@ -17,7 +17,7 @@ from mcp.shared.auth import (
     OAuthClientInformationFull,
     OAuthToken,
 )
-from pydantic import AnyHttpUrl, SecretStr
+from pydantic import AnyHttpUrl, SecretStr, ValidationError
 
 from fastmcp.server.auth.auth import (
     ClientRegistrationOptions,
@@ -183,7 +183,7 @@ class BearerAuthProvider(OAuthProvider):
         # This allows the issuer claim validation to work with string issuers per RFC 7519
         try:
             issuer_url = AnyHttpUrl(issuer) if issuer else "https://fastmcp.example.com"
-        except Exception:
+        except ValidationError:
             # Issuer is not a valid URL, use default for parent class
             issuer_url = "https://fastmcp.example.com"