CVE-2026-44563
CVE-2026-44563 · Open WebUI: Ollama Model Access Control Bypass via /api/generate, /api/embed, /api/embeddings, and /api/show
This page contains facts from public vulnerability sources. Check the original advisory before updating.
Open WebUI is a self-hosted artificial intelligence platform designed to operate entirely offline. Prior to 0.9.0, the /api/generate, /api/embed, /api/embeddings, and /api/show endpoints accept any model name from the user and forward the request to the Ollama backend without checking whether the user is authorized to access that model. These endpoints only require get_verified_user (any authenticated non-pending user) and validate that the model exists in the full unfiltered model list, but never check AccessGrants.has_access(). This vulnerability is fixed in 0.9.0.
CVSS 5.4 · Medium · EPSS 0.2% · Fix available
- Published
- Updated
Stack: python
Affected products and versions
open-webui
- Versions
- < 0.9.0: Affected
No fix published
open-webui PyPI
- Versions
- 0.1.124
- 0.1.125
- 0.2.0
- 0.2.1
- 0.2.2
- 0.2.3
- 0.2.4
- 0.2.5
- 0.3.0
- 0.3.1
- 0.3.10
- 0.3.12
- 0.3.13
- 0.3.14
- 0.3.15
- 0.3.16
- 0.3.17
- 0.3.17.dev2
- 0.3.17.dev3
- 0.3.17.dev4
- 0.3.17.dev5
- 0.3.18
- 0.3.19
- 0.3.2
- 0.3.20
- 0.3.21
- 0.3.22
- 0.3.23
- 0.3.24
- 0.3.25
- 0.3.26
- 0.3.27
- 0.3.27.dev1
- 0.3.27.dev2
- 0.3.27.dev3
- 0.3.28
- 0.3.29
- 0.3.3
- 0.3.30
- 0.3.30.dev1
- 0.3.30.dev2
- 0.3.31
- 0.3.31.dev1
- 0.3.32
- 0.3.33
- 0.3.33.dev1
- 0.3.34
- 0.3.35
- 0.3.4
- 0.3.5
- 0.3.6
- 0.3.7
- 0.3.8
- 0.3.9
- 0.4.0
- 0.4.0.dev1
- 0.4.0.dev2
- 0.4.1
- 0.4.2
- 0.4.3
- 0.4.4
- 0.4.5
- 0.4.6
- 0.4.6.dev1
- 0.4.7
- 0.4.8
- 0.5.0
- 0.5.0.dev1
- 0.5.0.dev2
- 0.5.1
- 0.5.10
- 0.5.11
- 0.5.12
- 0.5.13
- 0.5.14
- 0.5.15
- 0.5.16
- 0.5.17
- 0.5.18
- 0.5.19
- 0.5.2
- 0.5.20
- 0.5.3
- 0.5.3.dev1
- 0.5.4
- 0.5.5
- 0.5.6
- 0.5.7
- 0.5.8
- 0.5.9
- 0.6.0
- 0.6.1
- 0.6.10
- 0.6.11
- 0.6.12
- 0.6.13
- 0.6.14
- 0.6.15
- 0.6.16
- 0.6.18
- 0.6.19
- 0.6.2
- 0.6.20
- 0.6.21
- 0.6.22
- 0.6.23
- 0.6.24
- 0.6.25
- 0.6.26
- 0.6.26.dev1
- 0.6.27
- 0.6.28
- 0.6.29
- 0.6.3
- 0.6.30
- 0.6.31
- 0.6.32
- 0.6.33
- 0.6.34
- 0.6.35
- 0.6.36
- 0.6.37
- 0.6.38
- 0.6.39
- 0.6.4
- 0.6.40
- 0.6.41
- 0.6.42
- 0.6.43
- 0.6.5
- 0.6.6
- 0.6.6.dev1
- 0.6.7
- 0.6.8
- 0.6.9
- 0.7.0
- 0.7.1
- 0.7.2
- 0.8.0
- 0.8.1
- 0.8.10
- 0.8.11
- 0.8.12
- 0.8.2
- 0.8.3
- 0.8.4
- 0.8.5
- 0.8.6
- 0.8.7
- 0.8.8
- 0.8.9
- Affected ranges
- ECOSYSTEM: < 0.9.0
Update to 0.9.0