CVE-2026-87994

Katalog CVE

CVSS 4.3 · Medium EPSS 0,37%

Kerentanan Authorization Bypass Through User-Controlled Key pada openwebui open webui. Skor CVSS 3.1 4.3 (Medium) menurut github.com.

Deskripsi (NVD)

Open WebUI is an extensible, feature-rich, and user-friendly self-hosted AI platform. From 0.9.5 until 0.11.1, the channel branch of chat_completion in backend/open_webui/main.py checked channel write access and channel membership for a supplied message_id but did not verify that the calling user authored the targeted message. A channel member could use the chat completions endpoint to replace another member's message while preserving the victim as the stored author, altering the conversation record without gaining access to other channels. This issue is fixed in version 0.11.1.

Rincian

Terbit di NVD

9 September 2026

Terakhir diubah

16 September 2026

Status NVD

Analyzed

CVSS 3.1

4.3 (Medium), sumber github.com
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N · uraikan di kalkulator

Jenis kelemahan (CWE)

CWE-639: Authorization Bypass Through User-Controlled Key
CWE-862: Missing Authorization

EPSS (30 hari)

0,37% peluang dieksploitasi; lebih tinggi dari 29,2% CVE lain

Produk dan versi terdampak

> Data dari konfigurasi CPE di NVD.

Referensi dan perbaikan

• https://github.com/open-webui/open-webui/security/advisories/GHSA-fmqh-xp37-5hr8 exploit · advisory vendor
• https://github.com/open-webui/open-webui/commit/7d392bedc9c1aaecc94509a58e59186b614433dc patch
• https://github.com/open-webui/open-webui/pull/28631 issue tracking · patch
• https://github.com/open-webui/open-webui/releases/tag/v0.11.1 release notes