VulnSocial

CVE-2026-44559Disclosure(openwebui / open_webui)

LOWCVSS 4.3 · MEDIUM

Signal is active with 2 mentions in latest observed window

Immediate actions

  • Track advisory updates for patch or workaround availability

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 0.9.0, the GET /api/v1/channels/{id}/members endpoint only checks membership for group and dm channel types (lines 467-469). For standard channels — including private ones — there is no channel_has_access check before returning the member list. Any authenticated user who knows a private channel's UUID can enumerate all users with access to that channel. This vulnerability is fixed in 0.9.0.

openwebui CVEsBack to dashboard
0.0/ 10 priority

Sources & remediation

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

Priority

LOW

Exploitation

NONE

PoC

YES

Patch

NONE

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

  • 2 mentions across 1 observed day

What's happening

  • Disclosure: 1 classified signal
  • General: 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: 205-16
Signal classification2 categories
Disclosure
150.0%
General
150.0%
Referenced assets2 URLs
By indicator
Full discourse2 posts
  • Infoflowcloud@infoflowcloud
    Disclosure

    🚨*CVE* CVE-2026-44559 Open WebUI is a self-hosted artificial intelligence platform designed to operate entirely offline. Prior to 0.9.0, the GET /api/v1/channels/{id}/members endpoint only… https://www.cve.org/CVERecord?id=CVE-2026-44559 ----- Traducción: CVE-2026-44559 Ope… http://infoflow.cloud`

    Post summary

    The post announces CVE‑2026‑44559 for Open WebUI, giving a brief context and linking to the official CVE record, but no technical details, PoC, exploit, or patch information are included.

    0000041
    78 followersView on X
  • CVE@CVEnew
    General

    CVE-2026-44559 Open WebUI is a self-hosted artificial intelligence platform designed to operate entirely offline. Prior to 0.9.0, the GET /api/v1/channels/{id}/members endpoint only… https://www.cve.org/CVERecord?id=CVE-2026-44559

    Post summary

    The text simply references CVE-2026-44559 with a brief, incomplete description and a link to the CVE record, lacking any detailed technical or operational information.

    00000357
    57.5K followersView on X
CPE platform detail1 entries

1 of 1 entries

PartVendorProductVersionTarget SWTarget HW
Appopenwebuiopen_webui---

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