From d534ab9b04ee6b4e2ecd57eac1e5b7525090fcdf Mon Sep 17 00:00:00 2001
From: Hieu Nguyen <hieu@example.com>
Date: Thu, 2 Apr 2026 17:16:59 +0700
Subject: [PATCH] fix: gracefully handle invalid base64 in
 grpc-status-details-bin header

---
 tonic/src/status.rs | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/tonic/src/status.rs b/tonic/src/status.rs
index eeceb32b4..65fd0c4a5 100644
--- a/tonic/src/status.rs
+++ b/tonic/src/status.rs
@@ -476,8 +476,11 @@ impl Status {
         let details = match header_map.get(Self::GRPC_STATUS_DETAILS) {
             Some(header) => crate::util::base64::STANDARD
                 .decode(header.as_bytes())
-                .expect("Invalid status header, expected base64 encoded value")
-                .into(),
+                .map(Bytes::from)
+                .unwrap_or_else(|_| {
+                    warn!("error decoding grpc-status-details-bin header");
+                    Bytes::new()
+                }),
             None => Bytes::new(),
         };