diff --git a/solr/solrj-streaming/src/java/org/apache/solr/client/solrj/io/graph/ShortestPathStream.java b/solr/solrj-streaming/src/java/org/apache/solr/client/solrj/io/graph/ShortestPathStream.java
index 5d508cd2e4f..fe22b4ad594 100644
--- a/solr/solrj-streaming/src/java/org/apache/solr/client/solrj/io/graph/ShortestPathStream.java
+++ b/solr/solrj-streaming/src/java/org/apache/solr/client/solrj/io/graph/ShortestPathStream.java
@@ -194,6 +194,14 @@ public ShortestPathStream(StreamExpression expression, StreamFactory factory) th
           Integer.parseInt(((StreamExpressionValue) depthExpression.getParameter()).getValue());
     }
 
+    boolean legacyJoin = false;
+
+    StreamExpressionNamedParameter legacyJoinExpression = factory.getNamedOperand(expression, "legacyJoin");
+
+    if(legacyJoinExpression != null) {
+      legacyJoin = Boolean.valueOf(((StreamExpressionValue)legacyJoinExpression.getParameter()).getValue());
+    }
+
     ModifiableSolrParams params = new ModifiableSolrParams();
     for (StreamExpressionNamedParameter namedParam : namedParams) {
       if (!namedParam.getName().equals("zkHost")
@@ -262,6 +270,7 @@ private void init(
     this.joinBatchSize = joinBatchSize;
     this.threads = threads;
     this.maxDepth = maxDepth;
+    this.legacyJoin = legacyJoin;
   }
 
   @Override
diff --git a/solr/solrj-streaming/src/test/org/apache/solr/client/solrj/io/graph/GraphTest.java b/solr/solrj-streaming/src/test/org/apache/solr/client/solrj/io/graph/GraphTest.java
index e16c2692fc0..ec1603d0e53 100644
--- a/solr/solrj-streaming/src/test/org/apache/solr/client/solrj/io/graph/GraphTest.java
+++ b/solr/solrj-streaming/src/test/org/apache/solr/client/solrj/io/graph/GraphTest.java
@@ -69,6 +69,18 @@ public void cleanIndex() throws Exception {
 
   @Test
   public void testShortestPathStream() throws Exception {
+    implTestShortestPathStream(false);
+  }
+
+  @Test
+  public void testLegacyShortestPathStream() throws Exception {
+    implTestShortestPathStream(true);
+  }
+
+  private void implTestShortestPathStream(final boolean legacyJoin) throws Exception {
+
+    final String ORIGINAL_TITLE = random().nextBoolean() ? "Original 'P' paperback" : "Original \"H\" hardback";
+    final String TRANSLATED_TITLE = "Translation";
 
     new UpdateRequest()
         .add(id, "0", "from_s", "jim", "to_s", "mike", "predicate_s", "knows")
@@ -86,6 +98,16 @@ public void testShortestPathStream() throws Exception {
         .add(id, "11", "from_s", "mary", "to_s", "max", "predicate_s", "knows")
         .add(id, "12", "from_s", "mary", "to_s", "jim", "predicate_s", "knows")
         .add(id, "13", "from_s", "mary", "to_s", "steve", "predicate_s", "knows")
+        // SOLR-15546: fromNode and toNode contains colon
+        .add(id, "14", "from_s", "https://aaa", "to_s", "https://bbb", "predicate_s", "links")
+        .add(id, "15", "from_s", "https://bbb", "to_s", "https://ccc", "predicate_s", "links")
+        // SOLR-15546: fromNode and toNode contains space
+        .add(id, "16", "from_s", "Author", "to_s", TRANSLATED_TITLE, "predicate_s", "author_to_book")
+        .add(id, "17", "from_s", TRANSLATED_TITLE, "to_s", "Translator", "predicate_s", "book_to_translator")
+        .add(id, "18", "from_s", "Ann Author", "to_s", TRANSLATED_TITLE, "predicate_s", "author_to_book")
+        .add(id, "19", "from_s", TRANSLATED_TITLE, "to_s", "Tim Translator", "predicate_s", "book_to_translator")
+        .add(id, "22", "from_s", "Ann Author", "to_s", ORIGINAL_TITLE, "predicate_s", "author_to_book")
+        .add(id, "23", "from_s", ORIGINAL_TITLE, "to_s", "Tim Translator", "predicate_s", "book_to_translator")
         .commit(cluster.getSolrClient(), COLLECTION);
 
     List<Tuple> tuples = null;
@@ -180,6 +202,91 @@ public void testShortestPathStream() throws Exception {
 
     assertTrue(paths.contains("[jim, stan, mary, steve]"));
 
+    if (!legacyJoin) {
+    // SOLR-15546: fromNode and toNode contains colon
+    stream = new ShortestPathStream(zkHost,
+        "collection1",
+        "https://aaa",
+        "https://bbb",
+        "from_s",
+        "to_s",
+        StreamingTest.mapParams("fq", "predicate_s:links"),
+        10,
+        3,
+        6);
+
+    stream.setStreamContext(context);
+    paths = new HashSet<>();
+    tuples = getTuples(stream);
+    assertTrue(tuples.size() == 1);
+
+    for(Tuple tuple : tuples) {
+      paths.add(tuple.getStrings("path").toString());
+    }
+
+    assertTrue(paths.contains("[https://aaa, https://bbb]"));
+
+    // SOLR-15546: fromNode and toNode and interim node contains colon
+    stream = new ShortestPathStream(zkHost,
+        "collection1",
+        "https://aaa",
+        "https://ccc",
+        "from_s",
+        "to_s",
+        StreamingTest.mapParams("fq", "predicate_s:links"),
+        10,
+        3,
+        6);
+
+    stream.setStreamContext(context);
+    paths = new HashSet<>();
+    tuples = getTuples(stream);
+    assertTrue(tuples.size() == 1);
+
+    for(Tuple tuple : tuples) {
+      paths.add(tuple.getStrings("path").toString());
+    }
+
+    assertTrue(paths.contains("[https://aaa, https://bbb, https://ccc]"));
+    }
+
+    // SOLR-15546: fromNode and toNode contains colon
+    stream = new ShortestPathStream(zkHost,
+        "collection1",
+        "Ann Author",
+        "Tim Translator",
+        "from_s",
+        "to_s",
+        StreamingTest.mapParams(),
+        10,
+        3,
+        6,
+        legacyJoin);
+
+    stream.setStreamContext(context);
+    paths = new HashSet<>();
+    tuples = getTuples(stream);
+
+    for(Tuple tuple : tuples) {
+      paths.add(tuple.getStrings("path").toString());
+    }
+
+    if (!legacyJoin) {
+      if (ORIGINAL_TITLE.contains("\"")) {
+        assertEquals(1, tuples.size());
+        // double quotes in the interim ORIGINAL_TITLE node were not matched
+        assertTrue(paths.contains("[Ann Author, "+TRANSLATED_TITLE+", Tim Translator]"));
+      } else {
+        assertEquals(2, tuples.size());
+        assertTrue(paths.contains("[Ann Author, "+ORIGINAL_TITLE+", Tim Translator]"));
+        assertTrue(paths.contains("[Ann Author, "+TRANSLATED_TITLE+", Tim Translator]"));
+      }
+    } else {
+      assertEquals(1, tuples.size());
+      // "Ann Author" fromNode got interpreted as "Ann" OR "Author"
+      assertTrue(paths.contains("[Author, "+TRANSLATED_TITLE+", Tim Translator]"));
+    }
+
     cache.close();
   }