CVE-2026-45301HIGH 8.1EPSS p19.5%

CVE-2026-45301CVE-2026-45301

Description

Open WebUI is a self-hosted artificial intelligence platform designed to operate entirely offline. Prior to 0.3.16, a missing permission check in all files related API endpoints allows any authenticated user to list, access and delete every file uploaded by every user to the platform. This vulnerability is fixed in 0.3.16.

Scoring

CVSS 3.18.1 (HIGH)
VectorCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N
EPSS0.27% probability of exploitation · percentile 19.5% · 2026-08-03T12:00:16Z
Published2026-05-15
Last modified2026-05-18

Underlying weaknesses· 1

CWE-284

References

  1. https://github.com/open-webui/open-webui/security/advisories/GHSA-r8wh-8m7r-fh33
  2. https://github.com/open-webui/open-webui/security/advisories/GHSA-r8wh-8m7r-fh33

1

TypeTargetConfidenceTier
WeaknessImproper Access Controlcwe-2840%live

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Sourced from NVD + FIRST.org EPSS. Curated for EU compliance use cases by Adam Lundqvist, Founder at SQUR.