Medium severity5.4NVD Advisory· Published Mar 27, 2026· Updated Apr 1, 2026
CVE-2026-29070
CVE-2026-29070
Description
Open WebUI is a self-hosted artificial intelligence platform designed to operate entirely offline. Prior to version 0.8.6, an access control check is missing when deleting a file from a knowledge base. The only check being done is that the user has write access to the knowledge base (or is admin), but NOT that the file actually belongs to this knowledge base. It is thus possible to delete arbitrary files from arbitrary knowledge bases (as long as one knows the file id). Version 0.8.6 patches the issue.
Affected packages
Versions sourced from the GitHub Security Advisory.
| Package | Affected versions | Patched versions |
|---|---|---|
open-webuiPyPI | < 0.8.6 | 0.8.6 |
Affected products
1Patches
0No patches discovered yet.
Vulnerability mechanics
AI mechanics synthesis has not run for this CVE yet.
References
4- github.com/open-webui/open-webui/security/advisories/GHSA-26gm-93rw-cchfnvdExploitVendor AdvisoryWEB
- github.com/advisories/GHSA-26gm-93rw-cchfghsaADVISORY
- nvd.nist.gov/vuln/detail/CVE-2026-29070ghsaADVISORY
- github.com/open-webui/open-webui/blob/main/backend/open_webui/routers/knowledge.pyghsaWEB
News mentions
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