CVE-2026-70479CWE-918ssrf

CVE-2026-70479

High · published August 5, 2026

CVSS v3.1
7.7
EPSS
0%
Percentile
39.4
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v3.1
7.7 · HIGH
Vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N
CVSS v4.0
Not supplied
EPSS
0.00466 · 39.4th percentile
Weakness
CWE-918 · Server-Side Request Forgery (SSRF)
Published
2026-08-05T00:16Z
Affected products (1)
ProductVersionsFixed in
openwebui/open_webui≥ 0.9.6, < 0.11.00.11.0
References (5)
https://github.com/open-webui/open-webui/commit/bef63a2ae915571d50d2722a635e8bfa753d7877 · [email protected]https://github.com/open-webui/open-webui/pull/27526 · [email protected]https://github.com/open-webui/open-webui/releases/tag/v0.11.0 · [email protected]https://github.com/open-webui/open-webui/security/advisories/GHSA-w2rx-84hp-gg95 · [email protected]https://github.com/open-webui/open-webui/security/advisories/GHSA-w2rx-84hp-gg95 · 134c704f-9b21-4f2e-91b3-4a467353bcc0
EPSS history
Timeline
  • 04 AUG 19:40Z
    Open WebUI: SSRF into internal services via unvalidated sub-resource requests in the Playwright web loader
    cvelistv5