EUVD-2026-75179

Open WebUI: Same-origin XSS to account takeover via terminal port-preview iframe hardcoding allow-same-origin...

CVE-2026-87995

Open WebUI is an extensible, feature-rich, and user-friendly self-hosted AI platform. From 0.8.11 until 0.11.1, src/lib/components/chat/FileNav/PortPreview.svelte rendered terminal port content in an iframe sandbox containing both allow-scripts and allow-same-origin. Because the terminal proxy...

CVE-2026-87995 Open WebUI: Same-origin XSS to account takeover via terminal port-preview iframe hardcoding allow-same-origin

Open WebUI is an extensible, feature-rich, and user-friendly self-hosted AI platform. From 0.8.11 until 0.11.1, src/lib/components/chat/FileNav/PortPreview.svelte rendered terminal port content in an iframe sandbox containing both allow-scripts and allow-same-origin. Because the terminal proxy...

CVE-2026-87995

Open WebUI versions 0.8.11 through 0.11.1 are affected by a same-origin XSS vulnerability in PortPreview.svelte. The terminal port content is rendered in an iframe sandbox that includes both allow-scripts and allow-same-origin. Because the terminal proxy serves content from the Open WebUI origin,...

CVE-2026-87995 Open WebUI: Same-origin XSS to account takeover via terminal port-preview iframe hardcoding allow-same-origin

Open WebUI is an extensible, feature-rich, and user-friendly self-hosted AI platform. From 0.8.11 until 0.11.1, src/lib/components/chat/FileNav/PortPreview.svelte rendered terminal port content in an iframe sandbox containing both allow-scripts and allow-same-origin. Because the terminal proxy...

PT-2026-89172

Summary Any authenticated user with access to a shared terminal server could get script of their choosing to run in the Open WebUI origin itself. The in-app port preview rendered the content of a previewed port in an iframe whose sandbox always granted allow-same-origin alongside allow-scripts, a...

[SECURITY] [DSA 6463-1] webkit2gtk security update

------------------------------------------------------------------------- Debian Security Advisory DSA-6463-1 [email protected] https://www.debian.org/security/ Alberto Garcia August 24, 2026 https://www.debian.org/security/faq -...

Astra Linux – Vulnerability in Chromium

Inappropriate implementation in the iFrame Sandbox in Google Chrome prior to 95.0.4638.54 allowed a remote attacker to bypass navigation restrictions through a crafted HTML page...

Astra Linux – Vulnerability in Chromium

Inappropriate implementation in the iframe Sandbox in Google Chrome prior to 105.0.5195.52 allowed a remote attacker to leak cross-origin data through a crafted HTML page...

Astra Linux – Vulnerability in Firefox, Thunderbird

It was possible to create specific XSLT markup that could bypass the iframe sandbox. This vulnerability affects Firefox ESR versions prior to 91.5, Firefox versions prior to 96, and Thunderbird versions prior to 91.5...

Astra Linux – Vulnerability in Chromium

Insufficient policy enforcement in the iFrameSandbox of Google Chrome prior to 91.0.4472.77 allowed a remote attacker to bypass navigation restrictions through a crafted HTML page...

Astra Linux – Vulnerability in Chromium

Insufficient policy enforcement in the iframe sandbox of Google Chrome prior to version 96.0.4664.45 allowed a remote attacker to bypass navigation restrictions through a crafted HTML page...

Astra Linux – Vulnerability in Firefox and Thunderbird

The iframe sandbox rules were not correctly applied to XSLT stylesheets, allowing an iframe to bypass restrictions such as executing scripts or navigating the top-level frame. This vulnerability affects Firefox 94, Thunderbird 91.3, and Firefox ESR 91.3...

Astra Linux – Vulnerability in Chromium

Inappropriate implementation in the iframe Sandbox in Google Chrome prior to 109.0.5414.74 allowed a remote attacker to bypass file download restrictions via a crafted HTML page. Chromium security severity: Medium...

Astra Linux – Vulnerability in Chromium

Inappropriate implementation in the iFrame Sandbox in Google Chrome prior to 107.0.5304.62 allowed a remote attacker to leak cross-origin data through a crafted HTML page. Chromium security severity: Medium...

Astra Linux – Vulnerability in Chromium

In COOP mode in Google Chrome prior to version 98.0.4758.80, it was possible for a remote attacker to bypass the iframe sandbox through a crafted HTML page...

Astra Linux – Vulnerability in Chromium

Inappropriate implementation in the iframe sandbox in Google Chrome prior to 88.0.4324.96 allowed a remote attacker to bypass navigation restrictions through a crafted HTML page...

Astra Linux – Vulnerability in WebKit2GTK

This issue has been addressed through improved enforcement of iframe sandboxing policies. This issue is fixed in macOS Big Sur 11.2, Security Update 2021-001 Catalina, and Security Update 2021-001 Mojave. Maliciously crafted web content may violate iframe sandboxing policies...

Linux Distros Unpatched Vulnerability : CVE-2026-64728

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - A permissions issue was addressed with improved validation. This issue is fixed in Safari 26.6, iOS 26.6 and iPadOS 26.6, macOS Tahoe 26.6, tvOS 26.6, visionOS...

CVE-2026-66298

CVE-2026-66298 concerns Livebook’s JS-view sandbox where untrusted, notebook-defined JavaScript can trigger session-wide keyboard shortcuts. The root cause is in the trusted iframe shell forwarding every keydown to the parent without checking Event.isTrusted, allowing events synthesized by the un...