diff --git a/packages/angular/cli/src/package-managers/package-manager.ts b/packages/angular/cli/src/package-managers/package-manager.ts
index 8e68279a5c20..faceee96857e 100644
--- a/packages/angular/cli/src/package-managers/package-manager.ts
+++ b/packages/angular/cli/src/package-managers/package-manager.ts
@@ -391,13 +391,15 @@ export class PackageManager {
       registry?: string;
       ignoreScripts?: boolean;
       ignorePeerDependencies?: boolean;
-    } = { ignoreScripts: true },
+    } = {},
   ): Promise<void> {
+    const { force, ignoreScripts = true, ignorePeerDependencies } = options;
     const flags = [
-      options.force ? this.descriptor.forceFlag : '',
-      options.ignoreScripts ? this.descriptor.ignoreScriptsFlag : '',
-      options.ignorePeerDependencies ? (this.descriptor.ignorePeerDependenciesFlag ?? '') : '',
+      force ? this.descriptor.forceFlag : '',
+      ignoreScripts ? this.descriptor.ignoreScriptsFlag : '',
+      ignorePeerDependencies ? (this.descriptor.ignorePeerDependenciesFlag ?? '') : '',
     ].filter((flag) => flag);
+
     const args = [...this.descriptor.installCommand, ...flags];
 
     await this.#run(args, options);
@@ -787,9 +789,8 @@ export class PackageManager {
       }
     }
 
-    const flags = [options.ignoreScripts ? this.descriptor.ignoreScriptsFlag : ''].filter(
-      (flag) => flag,
-    );
+    const { ignoreScripts = true } = options;
+    const flags = [ignoreScripts ? this.descriptor.ignoreScriptsFlag : ''].filter((flag) => flag);
     const args: readonly string[] = [this.descriptor.addCommand, specifier, ...flags];
 
     try {
diff --git a/packages/angular/cli/src/package-managers/package-manager_spec.ts b/packages/angular/cli/src/package-managers/package-manager_spec.ts
index e6b8f95c0c4c..24885008f884 100644
--- a/packages/angular/cli/src/package-managers/package-manager_spec.ts
+++ b/packages/angular/cli/src/package-managers/package-manager_spec.ts
@@ -118,7 +118,78 @@ describe('PackageManager', () => {
     });
   });
 
+  describe('install', () => {
+    it('should pass ignoreScriptsFlag by default when no options are provided', async () => {
+      const pm = new PackageManager(host, '/tmp', descriptor);
+      await pm.install();
+
+      expect(runCommandSpy).toHaveBeenCalledWith(
+        descriptor.binary,
+        [...descriptor.installCommand, descriptor.ignoreScriptsFlag],
+        jasmine.objectContaining({ cwd: '/tmp' }),
+      );
+    });
+
+    it('should pass ignoreScriptsFlag by default when other options are provided', async () => {
+      const pm = new PackageManager(host, '/tmp', descriptor);
+      await pm.install({ force: true });
+
+      expect(runCommandSpy).toHaveBeenCalledWith(
+        descriptor.binary,
+        [...descriptor.installCommand, descriptor.forceFlag, descriptor.ignoreScriptsFlag],
+        jasmine.objectContaining({ cwd: '/tmp' }),
+      );
+    });
+
+    it('should not pass ignoreScriptsFlag when ignoreScripts is explicitly false', async () => {
+      const pm = new PackageManager(host, '/tmp', descriptor);
+      await pm.install({ ignoreScripts: false });
+
+      expect(runCommandSpy).toHaveBeenCalledWith(
+        descriptor.binary,
+        [...descriptor.installCommand],
+        jasmine.objectContaining({ cwd: '/tmp' }),
+      );
+    });
+  });
+
   describe('acquireTempPackage', () => {
+    it('should pass ignoreScriptsFlag by default when no options are provided', async () => {
+      const testHost = new MockHost({ '/tmp/project/node_modules': true });
+      const pm = new PackageManager(testHost, '/tmp/project', descriptor);
+      spyOn(testHost, 'createTempDirectory').and.resolveTo(
+        '/tmp/project/node_modules/angular-cli-tmp-packages-abc',
+      );
+      spyOn(testHost, 'writeFile').and.resolveTo();
+      spyOn(testHost, 'runCommand').and.resolveTo({ stdout: '', stderr: '' });
+
+      await pm.acquireTempPackage('foo@1.0.0');
+
+      expect(testHost.runCommand).toHaveBeenCalledWith(
+        descriptor.binary,
+        [descriptor.addCommand, 'foo@1.0.0', descriptor.ignoreScriptsFlag],
+        jasmine.any(Object),
+      );
+    });
+
+    it('should not pass ignoreScriptsFlag when ignoreScripts is explicitly false', async () => {
+      const testHost = new MockHost({ '/tmp/project/node_modules': true });
+      const pm = new PackageManager(testHost, '/tmp/project', descriptor);
+      spyOn(testHost, 'createTempDirectory').and.resolveTo(
+        '/tmp/project/node_modules/angular-cli-tmp-packages-abc',
+      );
+      spyOn(testHost, 'writeFile').and.resolveTo();
+      spyOn(testHost, 'runCommand').and.resolveTo({ stdout: '', stderr: '' });
+
+      await pm.acquireTempPackage('foo@1.0.0', { ignoreScripts: false });
+
+      expect(testHost.runCommand).toHaveBeenCalledWith(
+        descriptor.binary,
+        [descriptor.addCommand, 'foo@1.0.0'],
+        jasmine.any(Object),
+      );
+    });
+
     it('should copy and sanitize pnpm-workspace.yaml when package manager is pnpm and workspace file exists', async () => {
       const pnpmDescriptor = SUPPORTED_PACKAGE_MANAGERS['pnpm'];
       const testHost = new MockHost({ '/tmp/project/node_modules': true });