CVE-2026-70479
Open WebUI is an extensible, feature-rich, and user-friendly self-hosted AI platform.
Does this matter?
High impact if exploited, but EPSS currently rates exploitation as unlikely (0.26%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit.
Description
Open WebUI is an extensible, feature-rich, and user-friendly self-hosted AI platform. From 0.9.6 until 0.11.0, with WEB_LOADER_ENGINE=playwright, the Playwright web loader validates only the top-level page request and lets sub-resource requests pass unvalidated. A page supplied by an authenticated user can use JavaScript to reach blocked internal addresses, and returned DOM can include data read from those addresses in web-search or RAG output. This issue is fixed in 0.11.0.
- CVSS 3.1
- 7.7 HIGHCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N
- EPSS
- 0.26% probability · 18th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-918
- Source
- security-advisories@github.com
References
- https://github.com/open-webui/open-webui/commit/bef63a2ae915571d50d2722a635e8bfa753d7877
- https://github.com/open-webui/open-webui/pull/27526
- https://github.com/open-webui/open-webui/releases/tag/v0.11.0
- https://github.com/open-webui/open-webui/security/advisories/GHSA-w2rx-84hp-gg95
- https://github.com/open-webui/open-webui/security/advisories/GHSA-w2rx-84hp-gg95
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.