diff --git a/src/net_processing.cpp b/src/net_processing.cpp
index 96d452512e..0db5c0e002 100644
--- a/src/net_processing.cpp
+++ b/src/net_processing.cpp
@@ -2766,7 +2766,7 @@ void PeerManagerImpl::ProcessHeadersMessage(CNode& pfrom, Peer& peer,
     //   the received headers. We can still get ahead by up to a single maximum-sized
     //   headers message here, but never further, so that's fine.
     if (m_chainman.m_best_header) {
-        int64_t headers_ahead = m_chainman.m_best_header->nHeight - m_chainman.ActiveHeight();
+        int64_t headers_ahead = m_chainman.m_best_header->nHeight - WITH_LOCK(::cs_main, return m_chainman.ActiveHeight());
         bool too_far_ahead = node::fTrimHeaders && (headers_ahead >= node::nHeaderDownloadBuffer);
         if (too_far_ahead) {
             LOCK(cs_main);
diff --git a/src/rpc/mining.cpp b/src/rpc/mining.cpp
index 0b7cc8c90e..45550b6524 100644
--- a/src/rpc/mining.cpp
+++ b/src/rpc/mining.cpp
@@ -1100,7 +1100,8 @@ static RPCHelpMan getnewblockhex()
     // Construct proposed parameter entry, if any
     DynaFedParamEntry proposed;
     if (!request.params[1].isNull()) {
-        if (!DeploymentActiveAfter(chainman.ActiveChain().Tip(), chainman, Consensus::DEPLOYMENT_DYNA_FED)) {
+        auto tip = WITH_LOCK(::cs_main, return chainman.ActiveChain().Tip());
+        if (!DeploymentActiveAfter(tip, chainman, Consensus::DEPLOYMENT_DYNA_FED)) {
             throw JSONRPCError(RPC_INVALID_PARAMETER, "Dynamic federations is not active on this network. Proposed parameters are not needed.");
         }
 
diff --git a/src/rpc/node.cpp b/src/rpc/node.cpp
index 8856669dac..0f7b1c96db 100644
--- a/src/rpc/node.cpp
+++ b/src/rpc/node.cpp
@@ -452,7 +452,8 @@ static RPCHelpMan tweakfedpegscript()
     }
 
     ChainstateManager& chainman = EnsureAnyChainman(request.context);
-    CScript fedpegscript = GetValidFedpegScripts(chainman.ActiveChain().Tip(), Params().GetConsensus(), true /* nextblock_validation */).front().second;
+    auto tip = WITH_LOCK(::cs_main, return chainman.ActiveChain().Tip());
+    CScript fedpegscript = GetValidFedpegScripts(tip, Params().GetConsensus(), true /* nextblock_validation */).front().second;
 
     if (!request.params[1].isNull()) {
         if (IsHex(request.params[1].get_str())) {
diff --git a/src/rpc/rawtransaction.cpp b/src/rpc/rawtransaction.cpp
index c607271c3e..e6b348ea3a 100644
--- a/src/rpc/rawtransaction.cpp
+++ b/src/rpc/rawtransaction.cpp
@@ -365,7 +365,8 @@ static RPCHelpMan createrawtransaction()
     if (!request.params[3].isNull()) {
         rbf = request.params[3].isTrue();
     }
-    CMutableTransaction rawTx = ConstructTransaction(request.params[0], request.params[1], request.params[2], rbf, chainman.ActiveChain().Tip());
+    auto tip = WITH_LOCK(::cs_main, return chainman.ActiveChain().Tip());
+    CMutableTransaction rawTx = ConstructTransaction(request.params[0], request.params[1], request.params[2], rbf, tip);
 
     return EncodeHexTx(CTransaction(rawTx));
 },
@@ -746,7 +747,8 @@ static RPCHelpMan signrawtransactionwithkey()
     ParsePrevouts(request.params[2], &keystore, coins);
 
     UniValue result(UniValue::VOBJ);
-    SignTransaction(mtx, &keystore, coins, request.params[3], result, chainman.ActiveChain().Tip());
+    auto tip = WITH_LOCK(::cs_main, return chainman.ActiveChain().Tip());
+    SignTransaction(mtx, &keystore, coins, request.params[3], result, tip);
     return result;
 },
     };
@@ -1894,7 +1896,8 @@ static RPCHelpMan createpsbt()
         rbf = request.params[3].isTrue();
     }
     std::map<CTxOut, PSBTOutput> psbt_outs;
-    CMutableTransaction rawTx = ConstructTransaction(request.params[0], request.params[1], request.params[2], rbf, chainman.ActiveChain().Tip(), &psbt_outs, true /* allow_peg_in */, true /* allow_issuance */);
+    auto tip = WITH_LOCK(::cs_main, return chainman.ActiveChain().Tip());
+    CMutableTransaction rawTx = ConstructTransaction(request.params[0], request.params[1], request.params[2], rbf, tip, &psbt_outs, true /* allow_peg_in */, true /* allow_issuance */);
 
     // Make a blank psbt
     uint32_t psbt_version = 2;
@@ -2523,7 +2526,8 @@ static RPCHelpMan rawblindrawtransaction()
             "Invalid parameter: one (potentially empty) input asset blind for each input must be provided");
     }
 
-    const auto& fedpegscripts = GetValidFedpegScripts(chainman.ActiveChain().Tip(), Params().GetConsensus(), true /* nextblock_validation */);
+    auto tip = WITH_LOCK(::cs_main, return chainman.ActiveChain().Tip());
+    const auto& fedpegscripts = GetValidFedpegScripts(tip, Params().GetConsensus(), true /* nextblock_validation */);
 
     std::vector<CAmount> input_amounts;
     std::vector<uint256> input_blinds;