VulnSocial

CVE-2026-45395Disclosure(openwebui / open_webui)

LOWCVSS 7.2 · HIGH

Signal is active with 2 mentions in latest observed window

Immediate actions

  • Patch openwebui open_webui systems immediately

Recommended action window: Monitor and triage in normal cycle

NVD 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.

openwebui CVEsBack to dashboard
0.5/ 10 priority

Sources & remediation

Exploit / PoC references
Weakness type (CWE)
CWE-269CWE-862

Priority

LOW

Exploitation

NONE

PoC

YES

Patch

AVAILABLE

Momentum

NONE

Are you affected?

If you run products in this scope, you should treat this CVE as relevant to your environment.

  • open_webui

Threat summary

  • Patch or workaround signal is available
  • 2 mentions across 1 observed day

What's happening

  • Patch or workaround mentioned in 1 signal
  • Technical details provided in 1 signal
  • Disclosure: 1 classified signal
  • 2 total mentions across 1 day

Affected systems

Vendors
openwebui
Products
open_webui

Deep dive

Activity timeline2 mentions / 1d
01122Mentions · 2026-05-16: 2Patch / Workaround · 2026-05-16: 1Technical Details · 2026-05-16: 105-16
Signal classification2 categories
Disclosure
150.0%
Patch
150.0%
Referenced assets2 URLs
By indicator
Full discourse2 posts
  • Infoflowcloud@infoflowcloud
    Disclosure

    🚨*CVE* CVE-2026-45395 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… https://www.cve.org/CVERecord?id=CVE-2026-45395 ----- Traducción: CVE-2026-45395 Ope… http://infoflow.cloud`

    Post summary

    The post announces CVE-2026-45395 for Open WebUI and notes that the issue existed before version 0.9.5, but provides no technical details, exploit code, or patch information.

    0000040
    78 followersView on X
  • CVE@CVEnew
    Patch

    CVE-2026-45395 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… https://www.cve.org/CVERecord?id=CVE-2026-45395

    Post summary

    CVE‑2026‑45395 exposes a vulnerability in Open WebUI’s tool update endpoint, which is addressed by upgrading to version 0.9.5.

    00000207
    57.5K followersView on X
CPE platform detail1 entries

1 of 1 entries

PartVendorProductVersionTarget SWTarget HW
Appopenwebuiopen_webui---

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