CVE-2021-41773

CVE-2021-41773 Apache HTTP Server 2.4.49-2.4.50におけるパス正規化の変更に脆弱性が見つかりました。攻撃者はパストラバーサル攻撃を使用して、期待されるドキュメントルート外のファイルにURLをマッピングする可能性があります。ドキュメントルート外のファイルが「require all denied」によって保護されていない場合、これらのリクエストは成功する可能性があります。さらに、この脆弱性により、CGIスクリプトのようなインタプリタ処理されるファイルのソースが漏洩する可能性があります。...

PoC-CVE-2021-41773

CVE-2021-41773 PoC 检查主机是否易受 CVE-2021-41773 影响的概念验证工具。 描述 https://vulners.com/cve/CVE-2021-41773 在 Apache HTTP Server 2.4.49-2.4.50 对路径规范化所做的更改中发现了一个漏洞。 攻击者可以使用路径遍历攻击将 URL 映射到预期文档根目录之外的文件。如果文档根目录之外的文件未受“require all denied”保护，这些请求可能会成功。此外，此缺陷可能会泄露解释文件（如 CGI 脚本）的源代码。 此问题仅影响 Apache 2.4.49 和...

CVE-2021-41773

CVE-2021-41773 Apache HTTP Server 2.4.49 中的路径遍历与文件泄露漏洞 CVE-2021-41773 信息 在 Apache HTTP Server 2.4.49 的路径规范化更改中发现了一个缺陷。攻击者可以利用路径遍历攻击将 URL 映射到预期文档根目录之外的文件。 如果文档根目录之外的文件未受 "require all denied" 保护，这些请求可能成功。此外，此缺陷可能泄露解释型文件（如 CGI 脚本）的源代码。 此问题已知已在野外被利用。 该问题仅影响 Apache 2.4.49，不影响早期版本。 鸣谢：该问题由 Ash Daulton ...

CTF_WRITEUPS-TryHackMe-CVE-2021-41773-

CTFWRITEUPS-TryHackMe-CVE-2021-41773- CTFWRITEUPS/TryHackMe /CVE-2021-41773/ CVE-2021-41773/42013 Apacheのパストラバーサルバグと不完全な修正についての簡単な説明 Task 1: ちょっとした背景... 簡単な歴史 2021年10月5日、Apache HTTP Server v2.4.49に対するパストラバーサル攻撃を詳述したCVEが公開されました。CVE-2021-41773という番号が割り当てられ、以下の説明とともに公開されました。 Apache HTTP Server...

CVE-2021-41773h

CVE-2021-41773 Path traversal and file disclosure vulnerability in Apache HTTP Server 2.4.49 CVE-2021-41773 Info A flaw was found in a change made to path normalization in Apache HTTP Server 2.4.49. An attacker could use a path traversal attack to map URLs to files outside the expected document...

CVE-2026-49970 Laravel-Mediable < 7.0.0 Path Traversal via File::sanitizePath()

Laravel-Mediable before 7.0.0 contains a path traversal vulnerability in the File::sanitizePath function that allows attackers to write uploaded files to arbitrary locations by controlling the directory argument passed to MediaUploader::toDestination. Attackers can exploit the permissive...

Nokogiri: Possible Use-After-Free when setting `Document#root=` to an invalid node type

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EUVD-2026-38069

YARD static cache reads raw traversal paths before router sanitization...

GHSA-PXCC-8665-PHX8 YARD static cache reads raw traversal paths before router sanitization

Summary YARD's static cache lookup reads a request path before the router's path cleanup runs. When a server is configured with a document root, a traversal path such as /../yard-cache-secret.html is joined against that root and can return a readable sibling .html file outside the intended static...

CVE-2026-57436

Nokogiri is an open source XML and HTML library for the Ruby programming language. Prior to 1.19.4, Nokogiri::XML::Documentroot= validated only that the new root was a Nokogiri::XML::Node, allowing a DTD node to be set as the document root. The result is a heap use-after-free during garbage...

CVE-2026-57436 Nokogiri: Possible Use-After-Free when setting `Document#root=` to an invalid node type

Nokogiri is an open source XML and HTML library for the Ruby programming language. Prior to 1.19.4, Nokogiri::XML::Documentroot= validated only that the new root was a Nokogiri::XML::Node, allowing a DTD node to be set as the document root. The result is a heap use-after-free during garbage...

CVE-2026-57436

Nokogiri is an open source XML and HTML library for the Ruby programming language. Prior to 1.19.4, Nokogiri::XML::Documentroot= validated only that the new root was a Nokogiri::XML::Node, allowing a DTD node to be set as the document root. The result is a heap use-after-free during garbage...

CVE-2026-57436 Nokogiri: Possible Use-After-Free when setting `Document#root=` to an invalid node type

Nokogiri is an open source XML and HTML library for the Ruby programming language. Prior to 1.19.4, Nokogiri::XML::Documentroot= validated only that the new root was a Nokogiri::XML::Node, allowing a DTD node to be set as the document root. The result is a heap use-after-free during garbage...

CVE-2026-49342

YARD is a documentation generation tool for the Ruby programming language. Prior to version 0.9.44, YARD's static cache lookup reads a request path before the router's path cleanup runs. When a server is configured with a document root, a traversal path such as /../yard-cache-secret.html is joine...

CVE-2026-49342 YARD static cache reads raw traversal paths before router sanitization

YARD is a documentation generation tool for the Ruby programming language. Prior to version 0.9.44, YARD's static cache lookup reads a request path before the router's path cleanup runs. When a server is configured with a document root, a traversal path such as /../yard-cache-secret.html is joine...

CVE-2026-49342

YARD is a documentation generation tool for the Ruby programming language. Prior to version 0.9.44, YARD's static cache lookup reads a request path before the router's path cleanup runs. When a server is configured with a document root, a traversal path such as /../yard-cache-secret.html is joine...

CVE-2026-49342

YARD (Ruby) prior to 0.9.44 is affected: its static cache lookup reads the request path before router path cleanup, allowing a traversal like /../yard-cache-secret.html to be joined with a document root and retrieve a sibling .html outside the intended static tree. The issue is addressed in versi...

CVE-2026-49342

YARD is a documentation generation tool for the Ruby programming language. Prior to version 0.9.44, YARD's static cache lookup reads a request path before the router's path cleanup runs. When a server is configured with a document root, a traversal path such as /../yard-cache-secret.html is joine...

GHSA-WJV4-X9W8-WM3H Nokogiri: Possible Use-After-Free when setting `Document#root=` to an invalid node type

Summary Nokogiri::XML::Documentroot= validated only that the new root was a Nokogiri::XML::Node, allowing a DTD node to be set as the document root. The result is a heap use-after-free during garbage collection or finalization, leading to an invalid memory read or potentially a segfault. Nokogiri...

Nokogiri: Possible Use-After-Free when setting `Document#root=` to an invalid node type

Summary Nokogiri::XML::Documentroot= validated only that the new root was a Nokogiri::XML::Node, allowing a DTD node to be set as the document root. The result is a heap use-after-free during garbage collection or finalization, leading to an invalid memory read or potentially a segfault. Nokogiri...