VIR Vulnerability Intelligence Relay

CVE-2026-45402

high
Published 2026-05-15 · Modified 2026-05-15
CVSS v3
8.1
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N
CVSS v2
—
VIR risk
8.1

Description

Open WebUI: Cross-User File Access via Unchecked file_id in Folder Knowledge and Knowledge-Base Attach Endpoints

Predictions

Exploit likelihood
88%
Patch ETA
—

Heuristic predictions, AS-IS, for prioritization only.

Mitigations

vendor Authored 2026-05-27

Vendor advisory: security-advisories@github.com — https://github.com/open-webui/open-webui/security/advisories/GHSA-r472-mw7m-967f

Package impact
EcosystemPackageVulnerableFixed
python PyPIopen-webui<0.9.50.9.5
PIPopen-webui<= 0.9.40.9.5

Application impact
VendorProductVersionsFixed
openwebuiopen_webui{"endExcluding":"0.9.5"}0.9.5

References

CWEs

CWE-639

Verify integrity in audit chain (admin only). AS-IS.