CVE-2026-70491
Description
Open WebUI is an extensible, feature-rich, and user-friendly self-hosted AI platform. In 0.10.2 and earlier, the GET /api/v1/tools/, GET /api/v1/tools/list, and GET /api/v1/tools/id/{id} endpoints in backend/open_webui/routers/tools.py returned full Python tool source to authenticated non-admin read-only users. ToolResponse deliberately omitted source and specs, but ToolUserResponse permitted extra fields and handlers spread a full tool model dump into the response, re-admitting omitted fields. A non-admin with a read grant can obtain another user's server-side tool source, which commonly embeds hard-coded API keys, credentials, and internal service URLs. This issue is fixed in 0.11.0.
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 | < 0.11.0 | 0.11.0 |
Affected products
2<=0.10.2+ 1 more
- (no CPE)range: <=0.10.2
- cpe:2.3:a:openwebui:open_webui:*:*:*:*:*:*:*:*range: <0.11.0
Patches
Vulnerability mechanics
References
5- github.com/open-webui/open-webui/commit/c05de13b4fca1ac8a17153782b46b3d0aacf491cnvdPatchWEB
- github.com/open-webui/open-webui/pull/27005nvdPatchVendor AdvisoryWEB
- github.com/open-webui/open-webui/security/advisories/GHSA-3r7g-q6cg-q2vxnvdExploitPatchVendor AdvisoryWEB
- github.com/advisories/GHSA-3r7g-q6cg-q2vxghsaADVISORY
- github.com/open-webui/open-webui/releases/tag/v0.11.0nvdRelease NotesWEB
News mentions
1- Open WebUI: 17 Vulnerabilities Disclosed Together, Patched in 0.11.0Vypr Intelligence · Aug 4, 2026