diff --git a/src/input/urlInput.ts b/src/input/urlInput.ts
index b205d786..18eca804 100644
--- a/src/input/urlInput.ts
+++ b/src/input/urlInput.ts
@@ -25,14 +25,28 @@ export class UrlInput extends InputSource {
     if (this.initialized) {
       return;
     }
-    logger.debug(`source URL: ${this.url}`);
-    if (!this.url.toLowerCase().startsWith("https")) {
-      throw new MindeeInputSourceError("URL must be HTTPS");
-    }
+    logger.debug(`source URL: ${UrlInput.maskCredentials(this.url)}`);
+    UrlInput.validateUrl(this.url);
     this.fileObject = this.url;
     this.initialized = true;
   }
 
+  /**
+   * Validates that a URL is safe to fetch: scheme must be https.
+   */
+  static validateUrl(url: string): void {
+    let parsed: URL;
+    try {
+      parsed = new URL(url);
+    } catch {
+      throw new MindeeInputSourceError("Invalid URL");
+    }
+
+    if (parsed.protocol !== "https:") {
+      throw new MindeeInputSourceError("URL must be HTTPS");
+    }
+  }
+
   private async fetchFileContent(options: {
     username?: string;
     password?: string;
@@ -44,11 +58,12 @@ export class UrlInput extends InputSource {
 
     if (token) {
       headers["Authorization"] = `Bearer ${token}`;
+    } else if (username && password) {
+      const encoded = Buffer.from(`${username}:${password}`).toString("base64");
+      headers["Authorization"] = `Basic ${encoded}`;
     }
 
-    const auth = username && password ? `${username}:${password}` : undefined;
-
-    return await this.makeRequest(this.url, auth, headers, 0, maxRedirects);
+    return await this.makeRequest(this.url, headers, 0, maxRedirects);
   }
 
   async saveToFile(options: {
@@ -110,9 +125,27 @@ export class UrlInput extends InputSource {
     return filename;
   }
 
+  private static maskCredentials(url: string): string {
+    try {
+      const parsed = new URL(url);
+      if (parsed.username || parsed.password) {
+        parsed.username = "******";
+        parsed.password = "******";
+      }
+      return parsed.toString();
+    } catch {
+      return url;
+    }
+  }
+
+  private static isSameOrigin(a: string, b: string): boolean {
+    const urlA = new URL(a);
+    const urlB = new URL(b);
+    return urlA.origin === urlB.origin;
+  }
+
   private async makeRequest(
     url: string,
-    auth: string | undefined,
     headers: Record<string, string>,
     redirects: number,
     maxRedirects: number
@@ -130,15 +163,22 @@ export class UrlInput extends InputSource {
     );
 
     if (response.statusCode && response.statusCode >= 300 && response.statusCode < 400) {
-      logger.debug(`Redirecting to: ${response.headers.location}`);
+      logger.debug(`Redirecting to: ${UrlInput.maskCredentials(response.headers.location?.toString() ?? "")}`);
       if (redirects === maxRedirects) {
         throw new MindeeInputSourceError(
           `Can't reach URL after ${redirects} out of ${maxRedirects} redirects, aborting operation.`
         );
       }
       if (response.headers.location) {
+        const redirectUrl = new URL(response.headers.location.toString(), url).toString();
+        UrlInput.validateUrl(redirectUrl);
+        const redirectHeaders = UrlInput.isSameOrigin(url, redirectUrl)
+          ? headers
+          : Object.fromEntries(
+            Object.entries(headers).filter(([k]) => k.toLowerCase() !== "authorization")
+          );
         return await this.makeRequest(
-          response.headers.location.toString(), auth, headers, redirects + 1, maxRedirects
+          redirectUrl, redirectHeaders, redirects + 1, maxRedirects
         );
       }
       throw new MindeeInputSourceError("Redirect location not found");
diff --git a/src/v2/parsing/index.ts b/src/v2/parsing/index.ts
index b449079d..d6f04b0d 100644
--- a/src/v2/parsing/index.ts
+++ b/src/v2/parsing/index.ts
@@ -6,7 +6,7 @@ export type { ErrorDetails } from "./error/index.js";
 export {
   Job,
   JobResponse,
-  JobWebhook
+  JobWebhook,
 } from "./job/index.js";
 export {
   BaseInference,
diff --git a/src/v2/parsing/job/job.ts b/src/v2/parsing/job/job.ts
index dce9d172..e5c2f35e 100644
--- a/src/v2/parsing/job/job.ts
+++ b/src/v2/parsing/job/job.ts
@@ -38,7 +38,7 @@ export class Job {
   /**
    * Status of the job.
    */
-  public status?: string;
+  public status: string;
   /**
    * URL to poll for the job status.
    */
@@ -54,9 +54,7 @@ export class Job {
 
   constructor(serverResponse: StringDict) {
     this.id = serverResponse["id"];
-    if (serverResponse["status"] !== undefined) {
-      this.status = serverResponse["status"];
-    }
+    this.status = serverResponse["status"];
     if (serverResponse["error"]) {
       this.error = new ErrorResponse(serverResponse["error"]);
     }
diff --git a/tests/input/urlInputSource.spec.ts b/tests/input/urlInputSource.spec.ts
index 24cbd603..d57e8e23 100644
--- a/tests/input/urlInputSource.spec.ts
+++ b/tests/input/urlInputSource.spec.ts
@@ -81,6 +81,74 @@ describe("Input Sources - URL input source", () => {
         assert.deepStrictEqual(localInput.fileObject, fileContent);
       });
 
+      it("should handle relative redirect URLs", async () => {
+        const originalUrl = "https://dummy-host/dir/original.pdf";
+        const fileContent = Buffer.from("relative redirect content");
+
+        mockPool
+          .intercept({ path: "/dir/original.pdf", method: "GET" })
+          .reply(302, "", { headers: { location: "/other/redirected.pdf" } });
+
+        mockPool
+          .intercept({ path: "/other/redirected.pdf", method: "GET" })
+          .reply(200, fileContent);
+
+        const urlInput = new UrlInput({ url: originalUrl, dispatcher: mockAgent });
+        const localInput = await urlInput.asLocalInputSource();
+        await localInput.init();
+
+        assert.ok(localInput instanceof BytesInput);
+        assert.strictEqual(localInput.filename, "redirected.pdf");
+        assert.deepStrictEqual(localInput.fileObject, fileContent);
+      });
+
+      it("should strip Authorization header on cross-origin redirect", async () => {
+        const originalUrl = "https://dummy-host/file.pdf";
+        const crossOriginUrl = "https://other-host/file.pdf";
+        const fileContent = Buffer.from("cross-origin content");
+        const otherPool = mockAgent.get("https://other-host");
+
+        mockPool
+          .intercept({ path: "/file.pdf", method: "GET" })
+          .reply(302, "", { headers: { location: crossOriginUrl } });
+
+        otherPool
+          .intercept({
+            path: "/file.pdf",
+            method: "GET",
+            headers: (h: Record<string, string>) => !("Authorization" in h),
+          })
+          .reply(200, fileContent);
+
+        const urlInput = new UrlInput({ url: originalUrl, dispatcher: mockAgent });
+        const localInput = await urlInput.asLocalInputSource({ token: "secret" });
+        await localInput.init();
+
+        assert.ok(localInput instanceof BytesInput);
+        assert.deepStrictEqual(localInput.fileObject, fileContent);
+      });
+
+      it("should block redirect to loopback address", async () => {
+        const originalUrl = "https://dummy-host/file.pdf";
+
+        mockPool
+          .intercept({ path: "/file.pdf", method: "GET" })
+          .reply(302, "", { headers: { location: "https://127.0.0.1/evil" } });
+
+        const urlInput = new UrlInput({ url: originalUrl, dispatcher: mockAgent });
+
+        try {
+          await urlInput.asLocalInputSource();
+          assert.fail("Expected an error to be thrown");
+        } catch (error) {
+          assert.ok(error instanceof Error);
+          assert.strictEqual(
+            (error as Error).message,
+            "URL host is a loopback or private address"
+          );
+        }
+      });
+
       it("should throw an error for HTTP error responses", async () => {
         const url = "https://dummy-host/not-found.pdf";