diff --git a/README.md b/README.md
index 568de05..c9d40a4 100644
--- a/README.md
+++ b/README.md
@@ -24,6 +24,7 @@ This action supports additional arguments. Most are converted to parameters for
 | --format              | format              | yaml    |
 | --include-path-params | include-path-params | false   |
 | --exclude-elements    | exclude-elements    | ''      |
+| --filter-extension    | filter-extension    | ''      |
 | --composed            | composed            | false   |
 | N/A                   | output-to-file      | ''      |
 
@@ -47,6 +48,7 @@ Additional arguments:
 | --deprecation-days-beta   | deprecation-days-beta   | 31      |
 | --deprecation-days-stable | deprecation-days-stable | 180     |
 | --exclude-elements        | exclude-elements        | ''      |
+| --filter-extension        | filter-extension        | ''      |
 | --composed                | composed                | false   |
 | N/A                       | output-to-file          | ''      |
 
@@ -64,13 +66,14 @@ Copy and paste the following snippet into your build .yml file:
 
 Additional arguments:
 
-| CLI                       | Action input            | Default |
-| ----------------------| ----------------------- | ------- |
-| --include-path-params     | include-path-params     | false   |
-| --exclude-elements        | exclude-elements        | ''      |
-| --composed                | composed                | false   |
-| --prefix-base             | prefix-base             | ''      |
-| --prefix-revision         | prefix-revision         | ''      |
-| --case-insensitive-headers| case-insensitive-headers| false   |
-| --format                  | format                  | ''      |
-| N/A                       | output-to-file          | ''      |
+| CLI                        | Action input             | Default |
+| -------------------------- | ------------------------ | ------- |
+| --include-path-params      | include-path-params      | false   |
+| --exclude-elements         | exclude-elements         | ''      |
+| --filter-extension         | filter-extension         | ''      |
+| --composed                 | composed                 | false   |
+| --prefix-base              | prefix-base              | ''      |
+| --prefix-revision          | prefix-revision          | ''      |
+| --case-insensitive-headers | case-insensitive-headers | false   |
+| --format                   | format                   | ''      |
+| N/A                        | output-to-file           | ''      |
diff --git a/breaking/action.yml b/breaking/action.yml
index 350052e..9cdc217 100644
--- a/breaking/action.yml
+++ b/breaking/action.yml
@@ -28,6 +28,10 @@ inputs:
     description: 'Exclude certain kinds of changes'
     required: false
     default: ''
+  filter-extension:
+    description: 'Exclude paths and operations with an OpenAPI Extension matching the given regular expression'
+    required: false
+    default: ''
   composed:
     description: 'Run in composed mode'
     required: false
@@ -51,5 +55,6 @@ runs:
     - ${{ inputs.deprecation-days-beta }}
     - ${{ inputs.deprecation-days-stable }}
     - ${{ inputs.exclude-elements }}
+    - ${{ inputs.filter-extension }}
     - ${{ inputs.composed }}
-    - ${{ inputs.output-to-file }}
\ No newline at end of file
+    - ${{ inputs.output-to-file }}
diff --git a/breaking/entrypoint.sh b/breaking/entrypoint.sh
index 13b39ad..e8af227 100755
--- a/breaking/entrypoint.sh
+++ b/breaking/entrypoint.sh
@@ -9,8 +9,9 @@ readonly include_path_params="$5"
 readonly deprecation_days_beta="$6"
 readonly deprecation_days_stable="$7"
 readonly exclude_elements="$8"
-readonly composed="$9"
-readonly output_to_file="${10}"
+readonly filter_extension="$9"
+readonly composed="${10}"
+readonly output_to_file="${11}"
 
 write_output () {
     _write_output_output="$1"
@@ -32,7 +33,7 @@ write_output () {
     echo "$_write_output_output" >>"$GITHUB_OUTPUT"
 }
 
-echo "running oasdiff breaking... base: $base, revision: $revision, fail_on: $fail_on, include_checks: $include_checks, include_path_params: $include_path_params, deprecation_days_beta: $deprecation_days_beta, deprecation_days_stable: $deprecation_days_stable, exclude_elements: $exclude_elements, composed: $composed, output_to_file: $output_to_file"
+echo "running oasdiff breaking... base: $base, revision: $revision, fail_on: $fail_on, include_checks: $include_checks, include_path_params: $include_path_params, deprecation_days_beta: $deprecation_days_beta, deprecation_days_stable: $deprecation_days_stable, exclude_elements: $exclude_elements, filter_extension: $filter_extension, composed: $composed, output_to_file: $output_to_file"
 
 # Build flags to pass in command
 flags=""
@@ -51,6 +52,9 @@ fi
 if [ -n "$exclude_elements" ]; then
     flags="$flags --exclude-elements $exclude_elements"
 fi
+if [ -n "$filter_extension" ]; then
+    flags="$flags --filter-extension $filter_extension"
+fi
 if [ "$composed" = "true" ]; then
     flags="$flags -c"
 fi
diff --git a/changelog/action.yml b/changelog/action.yml
index aa23fdc..a404e48 100644
--- a/changelog/action.yml
+++ b/changelog/action.yml
@@ -15,6 +15,10 @@ inputs:
     description: 'Exclude certain kinds of changes'
     required: false
     default: ''
+  filter-extension:
+    description: 'Exclude paths and operations with an OpenAPI Extension matching the given regular expression'
+    required: false
+    default: ''
   composed:
     description: 'Run in composed mode'
     required: false
@@ -50,6 +54,7 @@ runs:
     - ${{ inputs.revision }}
     - ${{ inputs.include-path-params }}
     - ${{ inputs.exclude-elements }}
+    - ${{ inputs.filter-extension }}
     - ${{ inputs.composed }}
     - ${{ inputs.output-to-file }}
     - ${{ inputs.prefix-base }}
diff --git a/changelog/entrypoint.sh b/changelog/entrypoint.sh
index 9124dd2..9c29db6 100755
--- a/changelog/entrypoint.sh
+++ b/changelog/entrypoint.sh
@@ -24,14 +24,15 @@ readonly base="$1"
 readonly revision="$2"
 readonly include_path_params="$3"
 readonly exclude_elements="$4"
-readonly composed="$5"
-readonly output_to_file="$6"
-readonly prefix_base="$7"
-readonly prefix_revision="$8"
-readonly case_insensitive_headers="$9"
-readonly format="${10}"
+readonly filter_extension="$5"
+readonly composed="$6"
+readonly output_to_file="$7"
+readonly prefix_base="$8"
+readonly prefix_revision="$9"
+readonly case_insensitive_headers="${10}"
+readonly format="${11}"
 
-echo "running oasdiff changelog base: $base, revision: $revision, include_path_params: $include_path_params, exclude_elements: $exclude_elements, composed: $composed, output_to_file: $output_to_file, prefix_base: $prefix_base, prefix_revision: $prefix_revision, case_insensitive_headers: $case_insensitive_headers, format: $format"
+echo "running oasdiff changelog base: $base, revision: $revision, include_path_params: $include_path_params, exclude_elements: $exclude_elements, filter_extension: $filter_extension, composed: $composed, output_to_file: $output_to_file, prefix_base: $prefix_base, prefix_revision: $prefix_revision, case_insensitive_headers: $case_insensitive_headers, format: $format"
 
 # Build flags to pass in command
 flags=""
@@ -41,6 +42,9 @@ fi
 if [ -n "$exclude_elements" ]; then
     flags="$flags --exclude-elements $exclude_elements"
 fi
+if [ -n "$filter_extension" ]; then
+    flags="$flags --filter-extension $filter_extension"
+fi
 if [ "$composed" = "true" ]; then
     flags="$flags -c"
 fi
diff --git a/diff/action.yml b/diff/action.yml
index dbd1493..1aa1904 100644
--- a/diff/action.yml
+++ b/diff/action.yml
@@ -23,6 +23,10 @@ inputs:
     description: 'Exclude certain kinds of changes'
     required: false
     default: ''
+  filter-extension:
+    description: 'Exclude paths and operations with an OpenAPI Extension matching the given regular expression'
+    required: false
+    default: ''
   composed:
     description: 'Run in composed mode'
     required: false
@@ -44,5 +48,6 @@ runs:
     - ${{ inputs.fail-on-diff }}
     - ${{ inputs.include-path-params }}
     - ${{ inputs.exclude-elements }}
+    - ${{ inputs.filter-extension }}
     - ${{ inputs.composed }}
     - ${{ inputs.output-to-file }}
diff --git a/diff/entrypoint.sh b/diff/entrypoint.sh
index f8c6e0e..dab4d0d 100755
--- a/diff/entrypoint.sh
+++ b/diff/entrypoint.sh
@@ -26,10 +26,11 @@ readonly format="$3"
 readonly fail_on_diff="$4"
 readonly include_path_params="$5"
 readonly exclude_elements="$6"
-readonly composed="$7"
-readonly output_to_file="$8"
+readonly filter_extension="$7"
+readonly composed="$8"
+readonly output_to_file="$9"
 
-echo "running oasdiff diff base: $base, revision: $revision, format: $format, fail_on_diff: $fail_on_diff, include_path_params: $include_path_params, exclude_elements: $exclude_elements, composed: $composed, output_to_file: $output_to_file"
+echo "running oasdiff diff base: $base, revision: $revision, format: $format, fail_on_diff: $fail_on_diff, include_path_params: $include_path_params, exclude_elements: $exclude_elements, filter_extension: $filter_extension, composed: $composed, output_to_file: $output_to_file"
 
 # Build flags to pass in command
 flags=""
@@ -45,6 +46,9 @@ fi
 if [ -n "$exclude_elements" ]; then
     flags="$flags --exclude-elements $exclude_elements"
 fi
+if [ -n "$filter_extension" ]; then
+    flags="$flags --filter-extension $filter_extension"
+fi
 if [ "$composed" = "true" ]; then
     flags="$flags -c"
 fi