From 3774999763f78e2b132b8236fb82abb2326e2d50 Mon Sep 17 00:00:00 2001
From: selsta <selsta@sent.at>
Date: Tue, 21 Jul 2026 17:27:25 +0200
Subject: [PATCH] serialization: validate RingCT prunable JSON type

---
 src/serialization/json_object.cpp | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/src/serialization/json_object.cpp b/src/serialization/json_object.cpp
index 73ddaeaf2..ad954ee0d 100644
--- a/src/serialization/json_object.cpp
+++ b/src/serialization/json_object.cpp
@@ -1173,6 +1173,11 @@ void fromJsonValue(const rapidjson::Value& val, rct::rctSig& sig)
   const auto prunable = val.FindMember("prunable");
   if (prunable != val.MemberEnd())
   {
+    if (!prunable->value.IsObject())
+    {
+      throw WRONG_TYPE("json object");
+    }
+
     rct::keyV pseudo_outs = std::move(sig.get_pseudo_outs());
 
     GET_FROM_JSON_OBJECT(prunable->value, sig.p.rangeSigs, range_proofs);