CVE-2026-87998
Open WebUI: Non-admin users can delete admin-owned external knowledge connections via knowledge base deletion
- Published
- Updated
- Reserved
- Assigned by
- GitHub_M
Description
Open WebUI is an extensible, feature-rich, and user-friendly self-hosted AI platform. From 0.10.0 until 0.11.1, DELETE /api/v1/knowledge/{id}/delete in backend/open_webui/routers/knowledge.py authorized deletion against the knowledge base but then removed its administrator-owned external connection without a separate administrator check or a check for other dependent knowledge bases. A non-administrator with write access to one external knowledge base could delete shared instance configuration and make every other knowledge base using that connection unavailable. This issue is fixed in version 0.11.1.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| GitHub_MCNA (assigner) | 3.1 | High7.1 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:L |
| NVDNVD · Analyzed | 3.1 | High7.1 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:L |
- EPSS (exploitation in 30 days)
- 0.49% · top 58% of all CVEs (7 Nov 2026)
- CISA SSVC
- Exploitation: none · Automatable: no · Technical impact: partial
The list uses the assigner's score when there is one, then CISA's, then NVD's: High 7.1.
Weakness
Affected products
- affected >= 0.10.0, < 0.11.1
Affected packages
From reviewed advisories of the GitHub Advisory Database.
- PyPIopen-webuiGHSA-2724-6cpj-gf3v (opens in a new tab)
References (4)
- https://github.com/open-webui/open-webui/security/advisories/GHSA-2724-6cpj-gf3v (opens in a new tab)x_refsource_CONFIRM
- https://github.com/open-webui/open-webui/pull/28113 (opens in a new tab)x_refsource_MISC
- https://github.com/open-webui/open-webui/commit/dc03e7e595d61be97b25a1dd7bb99ad264f73199 (opens in a new tab)x_refsource_MISC
- https://github.com/open-webui/open-webui/releases/tag/v0.11.1 (opens in a new tab)x_refsource_MISC
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisory GHSA-2724-6cpj-gf3v (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://trackcve.app/cve/CVE-2026-87998)Record last updated .