Medium severity4.3NVD Advisory· Published Sep 9, 2026· Updated Sep 16, 2026
CVE-2026-87997
CVE-2026-87997
Description
Open WebUI is an extensible, feature-rich, and user-friendly self-hosted AI platform. From 0.10.0 until 0.11.1, POST /api/chat/completions and POST /api/v1/chat/completions in backend/open_webui/main.py copied a client-supplied folder_id into a new chat without applying the folder write-access check used by the dedicated chat routes. An authenticated user who knew a shared folder identifier could inject an attacker-controlled chat into a folder where the user had read-only or no write access, causing the entry to appear to authorized folder readers. This issue is fixed in version 0.11.1.
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected packages
Versions sourced from the GitHub Security Advisory.
| Package | Affected versions | Patched versions |
|---|---|---|
open-webuiPyPI | >= 0.10.0, < 0.11.1 | 0.11.1 |
Affected products
3(expand)+ 2 more
- (no CPE)
- cpe:2.3:a:openwebui:open_webui:*:*:*:*:*:*:*:*range: >=0.10.0,<0.11.1
- (no CPE)range: <0.11.1
Patches
Vulnerability mechanics
References
6- github.com/open-webui/open-webui/commit/d9e23b90c100d19b00270aea3cde0501d2354a6cnvdPatchWEB
- github.com/open-webui/open-webui/pull/28366nvdIssue TrackingPatchWEB
- github.com/open-webui/open-webui/security/advisories/GHSA-3pf7-q2g3-wj28nvdExploitVendor AdvisoryWEB
- github.com/advisories/GHSA-3pf7-q2g3-wj28ghsaADVISORY
- nvd.nist.gov/vuln/detail/CVE-2026-87997ghsaADVISORY
- github.com/open-webui/open-webui/releases/tag/v0.11.1nvdRelease NotesWEB
News mentions
1- Open WebUI: 18 Vulnerabilities Disclosed, Patch Released in Version 0.11.1Vypr Intelligence · Sep 10, 2026