chain-reactor

Chain Reactor Chain Reactorは、Linuxマシン上での検知と対応のカバレッジをテストするためのオープンソースツールです。このツールは、プロセス生成やネットワーク接続といった一連のアクションをシミュレートする実行ファイルを生成します。Chain Reactorは事前のエンジニアリング経験を必要としません。JSONを入力として使用するため、動作のカスタマイズはファイルを編集するだけで簡単に行えます。 はじめに インストールと使用方法については、Wikiのはじめにページを参照してください。 詳細情報 Chain ReactorのドキュメントはWikiとして利用できます...

HTB-Reactor-Linux-Machine-Walkthrough

HTB: Reactor !CAUTION ネタバレ注意。 これはフラグを含む完全なウォークスルーです。自分でこのマシンを解きたい場合は、今すぐ閉じて、詰まったときに戻ってきてください。 マシン情報 Field| Details ---|--- 名前| Reactor OS| Ubuntu 24.04 LTS Noble 難易度| Medium CVE| CVE-2025-55182 CVSS 10.0 ポート| 22 SSH, 3000 Next.js 作成者| sonnycroco 概要 Reactor は、ReactorWatch...

reactor

Reactor Reactor は、オープンソースプロジェクト ElastAlert のフォークとして始まりました。このプロジェクトのメンテナーは、ElastAlert の変更（追加のアラート機能を除く）を注意深く追跡し、関連するバグ修正がパッチとして適用され、有用な機能が移植されるようにする必要があります。 Reactor は、カスタムフィルターを持つ一連のルールを受け取り、一致したアラートを通知するアラートエンジンです。Reactor は、抑制されたアラートを繰り返しアラート情報で自動的に更新します。 ElastAlert からのパッチ履歴 アクセス日| コミット| 備考...

CVE-2026-47857

A flaw was found in Reactor Core. A remote attacker could exploit this vulnerability by using the Flux.windowTimeout operator with fairBackpressure enabled, leading to a Denial of Service DoS condition. This could cause applications to become unresponsive or crash. Mitigation Mitigation for this...

CVE-2026-47863

A flaw was found in Reactor Core. Applications using the Flux.bufferTimeout operator with fairBackpressure enabled are vulnerable to a Denial of Service DoS condition. This occurs when upstream components deliver items during an active flush, causing the processing pipeline to permanently hang an...

CVE-2026-82744 Ash.Reactor change step fails open, skipping a change when its where guard raises

Not Failing Securely Failing Open vulnerability in ash-project ash skips an Ash.Reactor change when the guard controlling it raises, so a change meant to run does not. An Ash.Reactor change step can be gated by where validations that decide whether the change runs. Ash.Reactor.ChangeStep...

CVE-2026-82744

ash-project ash (Elixir library) contains a Failing Open vulnerability in Ash.Reactor.ChangeStep (lib/ash/reactor/steps/change_step.ex). When a where guard controlling a change step raises an exception (e.g., on attacker-influenced input), the rescue in apply_validation converts it to {:error, er...

EUVD-2026-68949

Not Failing Securely Failing Open vulnerability in ash-project ash skips an Ash.Reactor change when the guard controlling it raises, so a change meant to run does not. An Ash.Reactor change step can be gated by where validations that decide whether the change runs. Ash.Reactor.ChangeStep...

EUVD-2026-66824

In Reactor Core, applications that use the Flux.windowTimeout operator with fairBackpressure enabled are vulnerable to a Denial of Service DoS condition. Reactor Core 3.8.0 - 3.8.6 Reactor Core 3.5.0 - 3.7.19 Reactor Core 3.4.41 and earlier...

EUVD-2026-66819

In specific scenarios, Reactor Netty HTTP Server may incorrectly evaluate the remote IP address when HAProxy Protocol is enabled. In order for this to happen, the application must be configured to use HAProxy Protocol. Reactor Netty 1.3.0 - 1.3.6 Reactor Netty 1.1.0 - 1.2.18 Reactor Netty 1.0.52...

EUVD-2026-66828

In Reactor Core, applications that use the Flux.bufferTimeout operator with fairBackpressure enabled are vulnerable to a Denial of Service DoS condition. Reactor Core 3.8.0 - 3.8.6 Reactor Core 3.7.19 and earlier...

EUVD-2026-66831

The vulnerability occurs when a client sends HTTP/1.1 pipelined requests over a single connection, causing the Reactor Netty HTTP server to consume an excessive amount of memory. Reactor Netty 1.3.0 - 1.3.6 Reactor Netty 1.1.0 - 1.2.18 Reactor Netty 1.0.52 and earlier...

CVE-2026-47863

In Reactor Core, applications that use the Flux.bufferTimeout operator with fairBackpressure enabled are vulnerable to a Denial of Service DoS condition. Reactor Core 3.8.0 - 3.8.6 Reactor Core 3.7.19 and earlier...

CVE-2026-47874

The vulnerability occurs when a client sends HTTP/1.1 pipelined requests over a single connection, causing the Reactor Netty HTTP server to consume an excessive amount of memory. Reactor Netty 1.3.0 - 1.3.6 Reactor Netty 1.1.0 - 1.2.18 Reactor Netty 1.0.52 and earlier...

CVE-2026-47857

In Reactor Core, applications that use the Flux.windowTimeout operator with fairBackpressure enabled are vulnerable to a Denial of Service DoS condition. Reactor Core 3.8.0 - 3.8.6 Reactor Core 3.5.0 - 3.7.19 Reactor Core 3.4.41 and earlier...

CVE-2026-47845

In specific scenarios, Reactor Netty HTTP Server may incorrectly evaluate the remote IP address when HAProxy Protocol is enabled. In order for this to happen, the application must be configured to use HAProxy Protocol. Reactor Netty 1.3.0 - 1.3.6 Reactor Netty 1.1.0 - 1.2.18 Reactor Netty 1.0.52...

CVE-2026-47874

CVE-2026-47874 affects the Reactor Netty HTTP server. When a client sends HTTP/1.1 pipelined requests over a single connection, the server can consume excessive memory, leading to a denial of service . The affected version ranges are 1.3.0–1.3.6 , 1.1.0–1.2.18 , and 1.0.52 and earlier . The vulne...

CVE-2026-47874 Reactor Netty HTTP Server Denial of Service With Pipelined Requests

The vulnerability occurs when a client sends HTTP/1.1 pipelined requests over a single connection, causing the Reactor Netty HTTP server to consume an excessive amount of memory. Reactor Netty 1.3.0 - 1.3.6 Reactor Netty 1.1.0 - 1.2.18 Reactor Netty 1.0.52 and earlier...

CVE-2026-47863

Reactor Core versions 3.8.0–3.8.6 and 3.7.19 and earlier are vulnerable to a Denial of Service condition in the Flux.bufferTimeout operator when fairBackpressure is enabled. The root cause is a race condition between flushing buffered items and the arrival of new upstream items during an active f...

CVE-2026-47863 Reactor Core bufferTimeout fair-backpressure pipeline permanently hangs when upstream delivers items during an active flush

In Reactor Core, applications that use the Flux.bufferTimeout operator with fairBackpressure enabled are vulnerable to a Denial of Service DoS condition. Reactor Core 3.8.0 - 3.8.6 Reactor Core 3.7.19 and earlier...