CWE-551（Incorrect Behavior Order: Authorization Before Parsing and Canonicalization）は各種脆弱性データベースや評価で用いられる弱点タイプを説明します。定義・背景・対応する CVE は以下の各セクションを参照してください。
If a web server does not fully parse requested URLs before it examines them for authorization, it may be possible for an attacker to bypass authorization protection.
| 種別 | 名称 | クラス | 普遍性 | OS / CPE |
|---|---|---|---|---|
| language | — | Not Language-Specific | Undetermined | — |
| technology | — | Not Technology-Specific | Undetermined | — |
| technology | — | Web Based | Undetermined | — |
| technology | Web Server | — | Undetermined | — |
これらの CVE は本データベースでこの弱点に対応付けられており、追跡と検索のために保持されています。
| CVE | 公開 | 概要 |
|---|---|---|
| CVE-2026-4636 | 2026-04-02 | A flaw was found in Keycloak. An authenticated user with the uma_protection role can bypass User-Managed Access (UMA) policy validation. This allows the attacker to include resource identifiers owned … |
| CVE-2016-20030 | 2026-03-16 | ZKTeco ZKBioSecurity 3.0 contains a user enumeration vulnerability that allows unauthenticated attackers to discover valid usernames by submitting partial characters via the username parameter. Attack… |
| CVE-2026-0707 | 2026-01-08 | A flaw was found in Keycloak. The Keycloak Authorization header parser is overly permissive regarding the formatting of the "Bearer" authentication scheme. It accepts non-standard characters (such as … |
| CVE-2023-23924 | 2023-02-01 | Dompdf is an HTML to PDF converter. The URI validation on dompdf 2.0.1 can be bypassed on SVG parsing by passing `<image>` tags with uppercase letters. This may lead to arbitrary object unserialize on… |
| CVE-2021-31384 | 2021-10-19 | Due to a Missing Authorization weakness and Insufficient Granularity of Access Control in a specific device configuration, a vulnerability exists in Juniper Networks Junos OS on SRX Series whereby an … |
| CVE-2021-32779 | 2021-08-24 | Envoy is an open source L7 proxy and communication bus designed for large modern service oriented architectures. In affected versions envoy incorrectly handled a URI '#fragment' element as part of the… |
| CVE-2021-32777 | 2021-08-24 | Envoy is an open source L7 proxy and communication bus designed for large modern service oriented architectures. In affected versions when ext-authz extension is sending request headers to the externa… |
| CVE-2021-34429 | 2021-07-15 | For Eclipse Jetty versions 9.4.37-9.4.42, 10.0.1-10.0.5 & 11.0.1-11.0.5, URIs can be crafted using some encoded characters to access the content of the WEB-INF directory and/or bypass some security co… |
| CVE-2021-28165 | 2021-04-01 | In Eclipse Jetty 7.2.2 to 9.4.38, 10.0.0.alpha0 to 10.0.1, and 11.0.0.alpha0 to 11.0.1, CPU usage can reach 100% upon receiving a large invalid TLS frame. |
| CVE-2021-28164 | 2021-04-01 | In Eclipse Jetty 9.4.37.v20210219 to 9.4.38.v20210224, the default compliance mode allows requests with URIs that contain %2e or %2e%2e segments to access protected resources within the WEB-INF direct… |
| 日付 | 名称 | バージョン | 重要度 | コメント |
|---|---|---|---|---|
| 2008-07-01 | Eric Dalci | 1.0 | — | updated Potential_Mitigations, Time_of_Introduction |
| 2008-09-08 | CWE Content Team | 1.0 | — | updated Relationships, Taxonomy_Mappings, Type |
| 2009-03-10 | CWE Content Team | 1.3 | — | updated Relationships |
| 2009-07-27 | CWE Content Team | 1.5 | — | updated Relationships |
| 2011-06-01 | CWE Content Team | 1.13 | — | updated Common_Consequences, Demonstrative_Examples, Description, Relationships |
| 2012-05-11 | CWE Content Team | 2.2 | — | updated Relationships |
| 2012-10-30 | CWE Content Team | 2.3 | — | updated Potential_Mitigations |
| 2014-07-30 | CWE Content Team | 2.8 | — | updated Relationships |
| 2017-11-08 | CWE Content Team | 3.0 | — | updated Modes_of_Introduction, Relationships, Taxonomy_Mappings |
| 2020-02-24 | CWE Content Team | 4.0 | — | updated Relationships |
| 2020-06-25 | CWE Content Team | 4.1 | — | updated Potential_Mitigations |
| 2023-04-27 | CWE Content Team | 4.11 | — | updated Relationships |
| 2023-06-29 | CWE Content Team | 4.12 | — | updated Mapping_Notes |
| 2025-12-11 | CWE Content Team | 4.19 | — | updated Applicable_Platforms, Relationships, Weakness_Ordinalities |