diff --git a/.github/codeql-config.yml b/.github/codeql-config.yml
new file mode 100644
index 0000000..cfedc46
--- /dev/null
+++ b/.github/codeql-config.yml
@@ -0,0 +1,28 @@
+name: BentoPDF CodeQL config
+
+paths-ignore:
+  - dist
+  - dist-test
+  - coverage
+  - node_modules
+  - vendor
+  - bentopdf-pymupdf-wasm
+  - libreoffice-wasm-package
+  - bentopdf-airgap-bundle
+  - public/pdfjs-viewer
+  - public/pdfjs-annotation-viewer
+  - public/libreoffice-wasm
+  - public/coherentpdf.browser.min.js
+  - public/workers
+  - public/embedpdf
+  - docs/.vitepress
+  - '**/*.min.js'
+  - '**/*.d.ts'
+
+query-filters:
+  - exclude:
+      id: js/log-injection
+  - exclude:
+      id: js/tainted-format-string
+  - exclude:
+      id: js/file-system-race
diff --git a/.github/workflows/codeql.yml b/.github/workflows/codeql.yml
index fa3f119..9a0ad2d 100644
--- a/.github/workflows/codeql.yml
+++ b/.github/workflows/codeql.yml
@@ -32,26 +32,8 @@ jobs:
         uses: github/codeql-action/init@v3
         with:
           languages: ${{ matrix.language }}
-          queries: security-extended,security-and-quality
-          config: |
-            paths-ignore:
-              - dist
-              - dist-test
-              - coverage
-              - node_modules
-              - vendor
-              - bentopdf-pymupdf-wasm
-              - libreoffice-wasm-package
-              - bentopdf-airgap-bundle
-              - public/pdfjs-viewer
-              - public/pdfjs-annotation-viewer
-              - public/libreoffice-wasm
-              - public/coherentpdf.browser.min.js
-              - public/workers
-              - public/embedpdf
-              - docs/.vitepress
-              - '**/*.min.js'
-              - '**/*.d.ts'
+          queries: security-extended
+          config-file: ./.github/codeql-config.yml
 
       - name: Perform CodeQL Analysis
         uses: github/codeql-action/analyze@v3
diff --git a/scripts/generate-i18n-pages.mjs b/scripts/generate-i18n-pages.mjs
index 5a32db8..846cd0a 100644
--- a/scripts/generate-i18n-pages.mjs
+++ b/scripts/generate-i18n-pages.mjs
@@ -145,7 +145,9 @@ function processFileForLanguage(
       href.startsWith('#') ||
       href.startsWith('mailto:') ||
       href.startsWith('tel:') ||
-      href.startsWith('javascript:')
+      href.startsWith('javascript:') ||
+      href.startsWith('data:') ||
+      href.startsWith('vbscript:')
     ) {
       return;
     }
diff --git a/src/js/i18n/i18n.ts b/src/js/i18n/i18n.ts
index 5513148..4bf6198 100644
--- a/src/js/i18n/i18n.ts
+++ b/src/js/i18n/i18n.ts
@@ -235,7 +235,9 @@ export const rewriteLinks = (): void => {
       href.startsWith('mailto:') ||
       href.startsWith('tel:') ||
       href.startsWith('#') ||
-      href.startsWith('javascript:')
+      href.startsWith('javascript:') ||
+      href.startsWith('data:') ||
+      href.startsWith('vbscript:')
     ) {
       return;
     }
diff --git a/src/js/logic/form-creator.ts b/src/js/logic/form-creator.ts
index 36692a2..b6d7e09 100644
--- a/src/js/logic/form-creator.ts
+++ b/src/js/logic/form-creator.ts
@@ -754,7 +754,8 @@ function renderField(field: FormField): void {
         contentEl.appendChild(img);
       } catch (error) {
         console.warn(
-          `Failed to render barcode preview for field "${field.name}":`,
+          'Failed to render barcode preview for field:',
+          String(field.name).replace(/[\r\n]+/g, ' '),
           error
         );
         contentEl.innerHTML = `<div class="flex flex-col items-center text-center p-1 text-gray-400"><i data-lucide="qr-code" class="w-6 h-6 mb-1"></i><span class="text-[10px] leading-tight">Invalid data</span></div>`;
@@ -2320,11 +2321,17 @@ downloadBtn.addEventListener('click', async () => {
           if (existingField) {
             radioGroup = existingField as PDFRadioGroup;
             radioGroups.set(groupName, radioGroup);
-            console.log(`Using existing radio group from PDF: ${groupName}`);
+            console.log(
+              'Using existing radio group from PDF:',
+              String(groupName).replace(/[\r\n]+/g, ' ')
+            );
           } else {
             radioGroup = form.createRadioGroup(groupName);
             radioGroups.set(groupName, radioGroup);
-            console.log(`Created new radio group: ${groupName}`);
+            console.log(
+              'Created new radio group:',
+              String(groupName).replace(/[\r\n]+/g, ' ')
+            );
           }
         }
 
@@ -2690,7 +2697,8 @@ downloadBtn.addEventListener('click', async () => {
             pdfPage.drawImage(pngImage, { x, y, width, height });
           } catch (e) {
             console.warn(
-              `Failed to generate barcode for field "${field.name}":`,
+              'Failed to generate barcode for field:',
+              String(field.name).replace(/[\r\n]+/g, ' '),
               e
             );
           }
diff --git a/src/js/logic/pdf-workflow-page.ts b/src/js/logic/pdf-workflow-page.ts
index 9de0984..a3ad6b6 100644
--- a/src/js/logic/pdf-workflow-page.ts
+++ b/src/js/logic/pdf-workflow-page.ts
@@ -554,7 +554,10 @@ async function addNodeToCanvas(
   try {
     const node = createNodeByType(type);
     if (!node) {
-      console.error('Node type not found in registry:', type);
+      console.error(
+        'Node type not found in registry:',
+        String(type).replace(/[\r\n]+/g, ' ')
+      );
       return;
     }
     await editor.addNode(node);
diff --git a/src/js/workflow/nodes/encrypt-node.ts b/src/js/workflow/nodes/encrypt-node.ts
index 0d50218..7d1bb57 100644
--- a/src/js/workflow/nodes/encrypt-node.ts
+++ b/src/js/workflow/nodes/encrypt-node.ts
@@ -45,7 +45,7 @@ export class EncryptNode extends BaseWorkflowNode {
     return {
       pdf: await processBatch(pdfInputs, async (input) => {
         const qpdf = await initializeQpdf();
-        const uid = `${Date.now()}_${Math.random().toString(36).slice(2, 9)}`;
+        const uid = `${Date.now()}_${crypto.randomUUID().slice(0, 7)}`;
         const inputPath = `/tmp/input_encrypt_${uid}.pdf`;
         const outputPath = `/tmp/output_encrypt_${uid}.pdf`;
 
diff --git a/src/js/workflow/nodes/linearize-node.ts b/src/js/workflow/nodes/linearize-node.ts
index cadb9f3..b7d9680 100644
--- a/src/js/workflow/nodes/linearize-node.ts
+++ b/src/js/workflow/nodes/linearize-node.ts
@@ -28,7 +28,7 @@ export class LinearizeNode extends BaseWorkflowNode {
     return {
       pdf: await processBatch(pdfInputs, async (input) => {
         const qpdf = await initializeQpdf();
-        const uid = `${Date.now()}_${Math.random().toString(36).slice(2, 9)}`;
+        const uid = `${Date.now()}_${crypto.randomUUID().slice(0, 7)}`;
         const inputPath = `/tmp/input_linearize_${uid}.pdf`;
         const outputPath = `/tmp/output_linearize_${uid}.pdf`;
 
diff --git a/src/js/workflow/nodes/overlay-node.ts b/src/js/workflow/nodes/overlay-node.ts
index e27b9a0..5c5a53c 100644
--- a/src/js/workflow/nodes/overlay-node.ts
+++ b/src/js/workflow/nodes/overlay-node.ts
@@ -40,7 +40,7 @@ export class OverlayNode extends BaseWorkflowNode {
     const mode = modeControl?.value === 'underlay' ? '--underlay' : '--overlay';
 
     const qpdf = await initializeQpdf();
-    const uid = `${Date.now()}_${Math.random().toString(36).slice(2, 9)}`;
+    const uid = `${Date.now()}_${crypto.randomUUID().slice(0, 7)}`;
     const inputPath = `/tmp/input_overlay_${uid}.pdf`;
     const overlayPath = `/tmp/overlay_${uid}.pdf`;
     const outputPath = `/tmp/output_overlay_${uid}.pdf`;
diff --git a/src/js/workflow/nodes/repair-node.ts b/src/js/workflow/nodes/repair-node.ts
index 05c882e..3cc0079 100644
--- a/src/js/workflow/nodes/repair-node.ts
+++ b/src/js/workflow/nodes/repair-node.ts
@@ -25,7 +25,7 @@ export class RepairNode extends BaseWorkflowNode {
     return {
       pdf: await processBatch(pdfInputs, async (input) => {
         const qpdf = await initializeQpdf();
-        const uid = `${Date.now()}_${Math.random().toString(36).slice(2, 9)}`;
+        const uid = `${Date.now()}_${crypto.randomUUID().slice(0, 7)}`;
         const inputPath = `/tmp/input_repair_${uid}.pdf`;
         const outputPath = `/tmp/output_repair_${uid}.pdf`;
 
diff --git a/vite.config.ts b/vite.config.ts
index 4ffb79a..feecd73 100644
--- a/vite.config.ts
+++ b/vite.config.ts
@@ -328,9 +328,10 @@ function createCorsProxyMiddleware(): Connect.NextHandleFunction {
       );
 
       proxyReq.on('error', (err) => {
-        console.error('[CORS Proxy] Error:', err.message);
+        const msg = String(err.message).replace(/[\r\n]+/g, ' ');
+        console.error('[CORS Proxy] Error:', msg);
         res.statusCode = 502;
-        res.end(`Proxy error: ${err.message}`);
+        res.end(`Proxy error: ${msg}`);
       });
 
       if (body.length > 0) {