CVE-2026-45806

CVE-2026-45806 Penpotのリモート画像インポート機能により、認証済みファイル編集者が通常のメディア便利機能をバックエンド発信のSSRFに変えることができました。攻撃者が制御するURLがリダイレクト追従型のサーバーフェッチパスに渡され、宛先フィルタリングが行われなかったためです。 はじめに この問題は、Penpot （オープンソースのデザイン・コード共同作業プラットフォーム）をレビューしているときに発見しました。特定の質問を念頭に置いていました。 共同作業デザインツールが、あるユーザーにバックエンドへリモート画像URLをフェッチさせる場合、何が起こるのか？...

CVE-2026-100868

Penpot before 2.18.0 binds the MCP server plugin WebSocket bridge to all network interfaces without authentication in single-user mode. Unauthenticated attackers on adjacent networks can connect to the WebSocket port to impersonate the Penpot browser plugin, intercept task payloads, and return...

EUVD-2026-87940

Penpot before 2.18.0 binds the MCP server plugin WebSocket bridge to all network interfaces without authentication in single-user mode. Unauthenticated attackers on adjacent networks can connect to the WebSocket port to impersonate the Penpot browser plugin, intercept task payloads, and return...

CVE-2026-100868

Versions of Penpot prior to 2.18.0 are vulnerable to unauthenticated access via the MCP server plugin WebSocket bridge . In single-user mode, the bridge binds to all network interfaces without authentication, allowing unauthenticated attackers on adjacent networks to connect to the WebSocket port...

CVE-2026-100868 Penpot before 2.18.0 Unauthenticated WebSocket Access via MCP Bridge

Penpot before 2.18.0 binds the MCP server plugin WebSocket bridge to all network interfaces without authentication in single-user mode. Unauthenticated attackers on adjacent networks can connect to the WebSocket port to impersonate the Penpot browser plugin, intercept task payloads, and return...

CVE-2026-100868 Penpot before 2.18.0 Unauthenticated WebSocket Access via MCP Bridge

Penpot before 2.18.0 binds the MCP server plugin WebSocket bridge to all network interfaces without authentication in single-user mode. Unauthenticated attackers on adjacent networks can connect to the WebSocket port to impersonate the Penpot browser plugin, intercept task payloads, and return...

CVE-2026-100868 Penpot before 2.18.0 Unauthenticated WebSocket Access via MCP Bridge

Penpot before 2.18.0 binds the MCP server plugin WebSocket bridge to all network interfaces without authentication in single-user mode. Unauthenticated attackers on adjacent networks can connect to the WebSocket port to impersonate the Penpot browser plugin, intercept task payloads, and return...

CVE-2026-100868: Binding to an Unrestricted IP Address

Penpot before 2.18.0 binds the MCP server plugin WebSocket bridge to all network interfaces without authentication in single-user mode. Unauthenticated attackers on adjacent networks can connect to the WebSocket port to impersonate the Penpot browser plugin, intercept task payloads, and return...

CVE-2026-47665

Penpot is an open-source design and prototyping platform. In versions up to and including 2.14.3, Penpot is vulnerable to stored cross-site scripting through file comments, whose content is stored as raw text and rendered into the page with innerHTML without any sanitization. Because the backend...

CVE-2026-47666

Penpot is an open-source design and prototyping platform. In versions up to and including 2.14.3, Penpot is vulnerable to stored cross-site scripting through custom font family names, which are interpolated into a @font-face CSS rule and injected into the page as HTML without sanitization. Becaus...

EUVD-2026-66812

Penpot is an open-source design and prototyping platform. In versions up to and including 2.14.3, Penpot is vulnerable to stored cross-site scripting through file comments, whose content is stored as raw text and rendered into the page with innerHTML without any sanitization. Because the backend...

CVE-2026-47665 Penpot: Stored XSS via comment content, innerHTML renders unsanitized HTML

Penpot is an open-source design and prototyping platform. In versions up to and including 2.14.3, Penpot is vulnerable to stored cross-site scripting through file comments, whose content is stored as raw text and rendered into the page with innerHTML without any sanitization. Because the backend...

CVE-2026-47665

Penpot , an open-source design and prototyping platform, is affected by a stored cross-site scripting vulnerability in versions up to and including 2.14.3 . Comment content on shared files is stored as raw text and rendered via innerHTML without sanitization; the backend applies only a length che...

CVE-2026-47665 Penpot: Stored XSS via comment content, innerHTML renders unsanitized HTML

Penpot is an open-source design and prototyping platform. In versions up to and including 2.14.3, Penpot is vulnerable to stored cross-site scripting through file comments, whose content is stored as raw text and rendered into the page with innerHTML without any sanitization. Because the backend...

CVE-2026-47665 Penpot: Stored XSS via comment content, innerHTML renders unsanitized HTML

Penpot is an open-source design and prototyping platform. In versions up to and including 2.14.3, Penpot is vulnerable to stored cross-site scripting through file comments, whose content is stored as raw text and rendered into the page with innerHTML without any sanitization. Because the backend...

CVE-2026-47666 Penpot: Stored XSS via custom font family name injected into a @font-face style rule

Penpot is an open-source design and prototyping platform. In versions up to and including 2.14.3, Penpot is vulnerable to stored cross-site scripting through custom font family names, which are interpolated into a @font-face CSS rule and injected into the page as HTML without sanitization. Becaus...

CVE-2026-47666

Penpot (open-source design and prototyping platform) versions up to and including 2.14.3 are affected by a stored XSS via custom font family names. Arbitrary font-family strings are interpolated into a @font-face CSS rule and injected via innerHTML without sanitization, allowing an attacker to br...

CVE-2026-47666 Penpot: Stored XSS via custom font family name injected into a @font-face style rule

Penpot is an open-source design and prototyping platform. In versions up to and including 2.14.3, Penpot is vulnerable to stored cross-site scripting through custom font family names, which are interpolated into a @font-face CSS rule and injected into the page as HTML without sanitization. Becaus...

EUVD-2026-66811

Penpot is an open-source design and prototyping platform. In versions up to and including 2.14.3, Penpot is vulnerable to stored cross-site scripting through custom font family names, which are interpolated into a @font-face CSS rule and injected into the page as HTML without sanitization. Becaus...

CVE-2026-47666 Penpot: Stored XSS via custom font family name injected into a @font-face style rule

Penpot is an open-source design and prototyping platform. In versions up to and including 2.14.3, Penpot is vulnerable to stored cross-site scripting through custom font family names, which are interpolated into a @font-face CSS rule and injected into the page as HTML without sanitization. Becaus...