CVE-2026-45339

medium

Published 2026-05-14 · Modified 2026-05-15

CVSS v3

6.5

CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:N

CVSS v2

—

VIR risk

6.5

Description

Open WebUI's API key endpoint restrictions bypassed via `x-api-key` header — full message processing on restricted endpoints

Exploit likelihood

75%

Patch ETA

—

Heuristic predictions, AS-IS, for prioritization only.

vendor Authored 2026-05-27

Vendor advisory: security-advisories@github.com — https://github.com/open-webui/open-webui/security/advisories/GHSA-57q6-fvp4-pqmm

Ecosystem	Package	Vulnerable	Fixed
PyPI	open-webu	`<0.9.0`	`0.9.0`
PIP	open-webu	`<= 0.8.12`	`0.9.0`

Vendor	Product	Versions	Fixed
openwebui	open_webui	`{"endExcluding":"0.9.0"}`	`0.9.0`

CWE-863

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