https://github.com/bitcoin/bitcoin/blob/d72758c3f6c34cd835f5de3efc230964f3b1ea56/src/torcontrol.cpp#L539

If a user is running Tor proxy outside localhost (perhaps on other host inside LAN or in containerised environment) , the automatic creation of onion services ends up creating an onion service listening to hardcored 127.0.0.1 address on the Tor proxy's host instead of the private address of the bitcoind – effectively running an empty onion service listening the Tor proxy's localhost.
{
    stats.nodeid = this->GetId();
    X(nServices);
    X(addr);
    X(addrBind);
    stats.m_mapped_as = addr.GetMappedAS(m_asmap);
    if (m_tx_relay != nullptr) {
        LOCK(m_tx_relay->cs_filter);
        stats.fRelayTxes = m_tx_relay->fRelayTxes;
    } else {
        stats.fRelayTxes = false;
    }
    X(nLastSend);
    X(nLastRecv);
    X(nLastTXTime);
    X(nLastBlockTime);
    X(nTimeConnected);
    X(nTimeOffset);
    stats.addrName = GetAddrName();
    X(nVersion);
    {
        LOCK(cs_SubVer);
        X(cleanSubVer);
    }
    stats.fInbound = IsInboundConn();
    stats.m_manual_connection = IsManualConn();