- かつ、いかなる認証情報も送信しない

この種の攻撃は主に次のような場合に関係します。

- アプリケーションがローカル（例: `localhost`）または社内ネットワークで動作している
- かつ、アプリに認証がなく、同一ネットワークからのリクエストは信頼できると想定している

## 攻撃例 { #example-attack }

ローカルで AI エージェントを実行できる仕組みを構築したとします。

それは次の API を提供します。

```
http://localhost:8000/v1/agents/multivac
```

フロントエンドもあります。

```
http://localhost:8000
```

/// tip | 豆知識

        assertTrue("Valid path in subdirectory should be allowed", result);
    }

    @Test
    public void test_isValidUploadPath_pathTraversal_simple() throws Exception {
        // Test simple path traversal attack
        File baseDir = new File(tempDir.toFile(), "images");
        baseDir.mkdirs();
        File maliciousFile = new File(baseDir, "../../../etc/passwd");

  /**
   * @throws IllegalArgumentException if another entry in the bucket has the same key
   * @throws BucketOverflowException if this bucket has too many entries, which may indicate a hash
   *     flooding attack
   */
  private static void checkNoConflictInValueBucket(
      Object value, Entry<?, ?> entry, @Nullable ImmutableMapEntry<?, ?> valueBucketHead)
      throws BucketOverflowException {
    int bucketSize = 0;

      "Work" shall mean the work of authorship, whether in Source or
      Object form, made available under the License, as indicated by a
      copyright notice that is included in or attached to the work
      (an example is provided in the Appendix below).

      "Derivative Works" shall mean any work, whether in Source or Object
      form, that is based on (or derived from) the Work and for which the

"Work" shall mean the work of authorship, whether in Source or Object form, 
made available under the License, as indicated by a copyright notice that is 
included in or attached to the work (an example is provided in the Appendix 
below). 

"Derivative Works" shall mean any work, whether in Source or Object form, 
that is based on (or derived from) the Work and for which the editorial 

the concept of a project object model (POM), Maven can manage a project's
build, reporting and documentation from a central piece of information.

If you think you have found a bug, please file an issue in the [Maven Issue Tracker](https://github.com/apache/maven/issues).

Documentation
-------------

More information can be found on [Apache Maven Homepage][maven-home].
Questions related to the usage of Maven should be posted on

      "Work" shall mean the work of authorship, whether in Source or
      Object form, made available under the License, as indicated by a
      copyright notice that is included in or attached to the work
      (an example is provided in the Appendix below).

      "Derivative Works" shall mean any work, whether in Source or Object
      form, that is based on (or derived from) the Work and for which the

      "Work" shall mean the work of authorship, whether in Source or
      Object form, made available under the License, as indicated by a
      copyright notice that is included in or attached to the work
      (an example is provided in the Appendix below).

      "Derivative Works" shall mean any work, whether in Source or Object
      form, that is based on (or derived from) the Work and for which the

import java.util.regex.Pattern;

import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

import jcifs.smb.SmbException;

/**
 * Path validation utility to prevent directory traversal and other path-based attacks.
 *
 * Features:
 * - Directory traversal prevention
 * - Path normalization
 * - Blacklist/whitelist support
 * - UNC path validation
 * - Special character filtering
 * - Length validation
 */

Bu, username geçerli olsun ya da olmasın endpoint'in yaklaşık aynı sürede yanıt vermesini sağlar; böylece mevcut username'leri saymaya yarayabilecek zamanlama saldırılarını (timing attacks) engeller.

/// note | Not