Open WebUI: Stored XSS via unescaped KaTeX render-error fallback in rendered messages
High-risk advisory
CVE-2026-70492
Summary
Open WebUI: Stored XSS via unescaped KaTeX render-error fallback in rendered messages
Why it matters
GitHub has published a reviewed security advisory for open-webui. Prioritize it with other application dependency updates.
Operator check
Check whether open-webui is present in application dependency manifests, lockfiles, or build images. Review the GitHub advisory and upgrade to a patched version where available.
Sources
PatchBrief uses public sources. It does not scan environments, verify exposure, or replace vendor guidance.