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CVE-2026-70479

7.7 HIGHPublic exploitEPSS 0.26%
  1. Published4 Aug 2026

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 breakdown

Attack vectorNetwork
Attack complexityLow
Privileges requiredLow
User interactionNone
ScopeChanged
ConfidentialityHigh
IntegrityNone
AvailabilityNone
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N

Affected products

Openwebui Open Webui≥ 0.9.6 < 0.11.0

Remediation

Fixed in
Openwebui Open Webui≥ 0.11.0

References

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Frequently asked

Is CVE-2026-70479 being actively exploited?

CVE-2026-70479 is not in the CISA KEV catalog. A public exploit reference exists, so treat it as exploitable. Its EPSS exploit probability is 0.26%.

How severe is CVE-2026-70479?

CVE-2026-70479 has a CVSS 3.1 base score of 7.7, rated high. EPSS estimates a 0.26% probability of exploitation.

Which products are affected by CVE-2026-70479?

Affected products include Openwebui Open Webui.

How do I fix CVE-2026-70479?

Upgrade affected software to a fixed version, for example Openwebui Open Webui 0.11.0 or later, then confirm no affected versions remain in your inventory.

How Secuno handles this

Secuno correlates vulnerabilities like CVE-2026-70479 against the real software inventory on every managed device, every day. Rather than a static severity, each match is scored in context: exploit availability, EPSS, the asset's exposure, and business criticality decide where it lands in the queue. If an affected version is present anywhere across your portfolio, it surfaces automatically with a prioritised remediation path.

See how prioritisation worksBook a demo

Data from the NVD, CISA KEV catalog and FIRST EPSS. CVSS 3.1 base score shown where available.