CVE-2026-70492

01/תיאור (מקור, אנגלית)

Open WebUI is an extensible, feature-rich, and user-friendly self-hosted AI platform. From 0.10.0 until 0.11.0, src/lib/components/chat/Messages/Markdown/KatexRenderer.svelte could store and render a chat message whose math block makes KaTeX fail with a stack overflow instead of a parse error. The catch branch fell back to inserting the original math source into the page as HTML through {@html} rather than as text, so script in the message runs in the browser of whoever views it, including shared chats and channels. The viewer's session token in localStorage can be stolen, and an administrator viewer can have their account taken over. This issue is fixed in 0.11.0.

02/מוצרים מושפעים

openwebui: open webui

03/קישורים5

• github.com/open-webui/open-webui/pull/26718 PatchVendor Advisory
• github.com/open-webui/open-webui/security/advisories/GHSA-pwxh‮… ExploitPatchVendor Advisory
• github.com/open-webui/open-webui/security/advisories/GHSA-pwxh‮… ExploitPatchVendor Advisory
• github.com/open-webui/open-webui/commit/bc600d3f085802c45aa8f3‮… Patch
• github.com/open-webui/open-webui/releases/tag/v0.11.0 Release Notes