CVE-2026-45400

HIGH
MEDIUM Priority: 0.02 BB Relevance: 67/100
Published: 2026-05-15 Modified: 2026-11-11 First seen: 2026-11-11 Status: active

Attack Surface

Network Low Complexity No Interaction Conf. Impact Scope Change

CVSS Vector Breakdown

AV: Network
AC: Low
PR: Low
UI: None
S: Changed
C: High
I: Low
A: None

Description

Open WebUI is a self-hosted artificial intelligence platform designed to operate entirely offline. Prior to 0.9.5, a parsing difference between the urlparse and requests libraries led to an SSRF bypass vulnerability. This vulnerability is fixed in 0.9.5.

Weakness Classification (1)

Affected Software (1)

VendorProductVersion
openwebui open_webui < 0.9.5

References & Advisories (1)

Bug Bounty Relevance

67 / 100
✓ Network accessible
✓ Low complexity
✓ No user interaction

CVSS Score

8.5 / 10.0 v3.1
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:L/A:N

EPSS — Exploitation Probability

0.29%
Raw Score 0.002920
Percentile 22.1%
Date 2026-11-13

EPSS Trend

2026-11-13
0.00292
2026-11-12
0.00292
2026-11-10
0.00292

Intelligence Sources

nvd ref →