All vulnerabilities
CVE-2026-109285GHSA-9cxp-636w-4997

open-webui: Open WebUI 0.6.0 before 0.11.4 Improper Access Control via Stale File Metadata

open-webui open-webui
Open in ThreatlineRecord JSON
CVSS
2.3Low
ExploitationPublic exploit codeCISA's assessment says proof of concept code is public, assessed 13 Oct 2026. Not in the KEV catalogCISA via CVE List
Exploit odds (EPSS)0.20%Chance of exploitation activity in the next 30 days, higher than 9% of CVEs. Scored 23 Oct 2026FIRST EPSS
Fixed in0.11.4Fixed versionCVE List
Published12 Oct 2026Updated 23 Oct 2026CVE List

What fixes it

A fixed version on one release line is not the upgrade target for every line. Check your exact version and any vendor backports.

Description

Open WebUI from 0.6.0 before 0.11.4 contains an improper access control vulnerability in has_access_to_file that lets former knowledge base collaborators keep file access via stale cached knowledge base references. Attackers with read or write grants can download removed files through the file content endpoint or delete them, including from the owner's private knowledge bases.

Text from CVE List

Affected versions 2

  • open-webuiaffected: 0.6.0 before 0.11.4CVE List
  • open-webuiunaffected: 0.11.4CVE List

References 2