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.
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 | < 0.8.6 | 0.8.6 |
Affected products
2Patches
Vulnerability mechanics
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
0No linked articles in our index yet.