Is CVE-2026-45395 actively exploited?

No active exploitation of CVE-2026-45395 has been confirmed so far. Continue monitoring, as exploit status can change.

Can CVE-2026-45395 be exploited remotely?

Yes. CVE-2026-45395 is exploitable remotely over the network (CVSS attack vector: Network).

What is the CVSS score of CVE-2026-45395?

CVE-2026-45395 has a CVSS score of 7.2 (HIGH).

HOME VULNERABILITIESCVE-2026-45395

HIGH

CVE-2026-45395

CWE-269Published: May 15, 2026· Updated: May 19, 2026

7.2

CVSS v3.1

EPSS:0.06%probability of exploitation in 30 daysPercentile:19.1th

Official Description

Open WebUI is a self-hosted artificial intelligence platform designed to operate entirely offline. Prior to 0.9.5, the tool update endpoint (POST /api/v1/tools/id/{id}/update) is missing the workspace.tools permission check that is present on the tool create endpoint. This allows a user who has been explicitly denied tool management capabilities ( and who the administrator considers untrusted for code execution ) to replace a tool's server-side Python content and trigger execution, bypassing the intended workspace.tools security boundary. This vulnerability is fixed in 0.9.5.

NVD Source

Technical Analysis

CVE-2026-45395 can be exploited remotely over the network without requiring physical or adjacent access, significantly expanding the attack surface for threat actors.

Exploitation requires high privileges, which limits the exposure to scenarios where an attacker has already gained initial access.

A successful exploit results in complete confidentiality breach (data exposure), full integrity compromise (data manipulation), availability disruption (denial of service), with a CVSS base score of 7.2.