diff --git a/muted-tests.yml b/muted-tests.yml
index e237f8e5346ac..9c997a78c2735 100644
--- a/muted-tests.yml
+++ b/muted-tests.yml
@@ -355,6 +355,15 @@ tests:
 - class: org.elasticsearch.reservedstate.service.FileSettingsServiceTests
   method: testProcessFileChanges
   issue: https://github.com/elastic/elasticsearch/issues/115280
+- class: org.elasticsearch.backwards.MixedClusterClientYamlTestSuiteIT
+  method: test {p0=indices.create/20_synthetic_source/object with unmapped fields}
+  issue: https://github.com/elastic/elasticsearch/issues/115910
+- class: org.elasticsearch.backwards.MixedClusterClientYamlTestSuiteIT
+  method: test {p0=indices.create/20_synthetic_source/empty object with unmapped fields}
+  issue: https://github.com/elastic/elasticsearch/issues/115911
+- class: org.elasticsearch.backwards.MixedClusterClientYamlTestSuiteIT
+  method: test {p0=indices.create/20_synthetic_source/nested object with unmapped fields}
+  issue: https://github.com/elastic/elasticsearch/issues/115912
 
 # Examples:
 #
@@ -393,4 +402,4 @@ tests:
 #    issue: "https://github.com/elastic/elasticsearch/..."
 #  - class: "org.elasticsearch.xpack.esql.**"
 #    method: "test {union_types.MultiIndexIpStringStatsInline *}"
-#    issue: "https://github.com/elastic/elasticsearch/..."
\ No newline at end of file
+#    issue: "https://github.com/elastic/elasticsearch/..."