diff --git a/lib/checkstl.cpp b/lib/checkstl.cpp
index 25899feb267..cbb8e524023 100644
--- a/lib/checkstl.cpp
+++ b/lib/checkstl.cpp
@@ -1138,7 +1138,7 @@ void CheckStl::invalidContainer()
                     continue;
                 if (!astIsContainer(contTok))
                     continue;
-                for (const Token* tok2 = blockStart; tok2 != blockEnd; tok2 = tok2->next()) {
+                for (const Token* tok2 = blockStart; tok2 && tok2 != blockEnd; tok2 = tok2->next()) {
                     bool bail = false;
                     for (const InvalidContainerAnalyzer::Info::Reference& r : analyzer.invalidatesContainer(tok2)) {
                         if (!astIsContainer(r.tok))
diff --git a/test/teststl.cpp b/test/teststl.cpp
index 43f5ca2eda5..2a8c31a7137 100644
--- a/test/teststl.cpp
+++ b/test/teststl.cpp
@@ -6515,6 +6515,13 @@ class TestStl : public TestFixture {
         ASSERT_EQUALS(
             "[test.cpp:7:17] -> [test.cpp:7:24] -> [test.cpp:8:10] -> [test.cpp:9:18]: (error) Reference to vec1 that may be invalid. [invalidContainerReference]\n",
             errout_str());
+
+        // #14326
+        check("void f(const std::vector<std::string>& v)\n"
+              "{\n"
+              "for (const std::string&s : v)\n"
+              "}\n"); // don't crash
+        ASSERT_EQUALS("", errout_str());
     }
 
     void invalidContainerLoop() {