Vulnerability · Published Jul 9, 2026 · Assigned by GitHub_M
CVE-2026-59213Open WebUI: Cross-user model-list exposure via static cache key in get_all_models (aiocache key= vs key_builder= misuse)
Low 3.5
In plain English
A low-severity security flaw in open-webui from open-webui. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.4% (higher than 31% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Official description
Open WebUI is an extensible, feature-rich, and user-friendly self-hosted AI platform. From 0.6.27 before 0.10.0, get_all_models handlers in routers/openai.py and routers/ollama.py passed a lambda to aiocache key instead of key_builder, causing permission-filtered per-user model lists to share a static cache entry and exposing one user’s model list to another caller during the TTL window. This issue is fixed in version 0.10.0.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| PyPI | open-webui | 0.10.0 | GHSA-3wp3-xxj9-5jqq |
| PyPI | open-webui | 0.10.0 | PYSEC-2026-3589 |
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| open-webui | open-webui | >= 0.6.27, < 0.10.0 |
Weakness: CWE-524 · Vector: CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:L/I:N/A:N
References
- https://github.com/open-webui/open-webui/security/advisories/GHSA-3wp3-xxj9-5jqq x_refsource_CONFIRM
- https://github.com/open-webui/open-webui/pull/25783 x_refsource_MISC
- https://github.com/open-webui/open-webui/commit/0fc630b34b2899599dabffffa012afd47599aa75 x_refsource_MISC
- https://github.com/open-webui/open-webui/releases/tag/v0.10.0 x_refsource_MISC