diff --git a/.github/workflows/build.yml b/.github/workflows/build.yml
index 457dd2e1af4..1be892f4577 100644
--- a/.github/workflows/build.yml
+++ b/.github/workflows/build.yml
@@ -23,6 +23,9 @@ concurrency:
   group: ${{ github.workflow }}-${{ github.event.pull_request.number || github.ref }}
   cancel-in-progress: true
 
+permissions:
+  contents: read
+
 jobs:
   build:
     runs-on: ubuntu-22.04
diff --git a/.github/workflows/ci.yml b/.github/workflows/ci.yml
index c0422cd4bd0..d6b5f5a1c4f 100644
--- a/.github/workflows/ci.yml
+++ b/.github/workflows/ci.yml
@@ -23,6 +23,9 @@ concurrency:
   group: ${{ github.workflow }}-${{ github.event.pull_request.number || github.ref }}
   cancel-in-progress: true
 
+permissions:
+  contents: read
+
 jobs:
   build:
     if: github.repository == 'apache/cloudstack'
diff --git a/.github/workflows/rat.yml b/.github/workflows/rat.yml
index d243fa863fe..64fa4c3da0c 100644
--- a/.github/workflows/rat.yml
+++ b/.github/workflows/rat.yml
@@ -23,6 +23,9 @@ concurrency:
   group: ${{ github.workflow }}-${{ github.event.pull_request.number || github.ref }}
   cancel-in-progress: true
 
+permissions:
+  contents: read
+
 jobs:
   build:
     runs-on: ubuntu-22.04
diff --git a/.github/workflows/ui.yml b/.github/workflows/ui.yml
index 280024b5a91..4d89977adf9 100644
--- a/.github/workflows/ui.yml
+++ b/.github/workflows/ui.yml
@@ -23,6 +23,9 @@ concurrency:
   group: ${{ github.workflow }}-${{ github.event.pull_request.number || github.ref }}
   cancel-in-progress: true
 
+permissions:
+  contents: read
+
 jobs:
   build:
     runs-on: ubuntu-22.04