CVE-2026-54022
CVE-2026-54022 · Open WebUI: Any authenticated user can read other users' private notes via Socket.IO
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 0.8.11, the ydoc:document:join Socket.IO handler checks note ownership only when the document_id starts with note: (colon). However, the YdocManager storage layer normalizes all document IDs by replacing colons with underscores (document_id.replace(":", "_")). An attacker can join a document room using note_<id> (underscore) instead of note:<id> (colon), bypassing the authorization check entirely while accessing the same underlying Yjs document. The server then returns the full document state, leaking the victim's private note contents. This vulnerability is fixed in 0.8.11.
CVSS 5.3 · Medium · EPSS 0.3% · Fix available
- Published
- Updated
Stack: python
Affected products and versions
open-webui
- Versions
- < 0.8.11: 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
- 0.8.2
- 0.8.3
- 0.8.4
- 0.8.5
- 0.8.6
- 0.8.7
- 0.8.8
- 0.8.9
- Affected ranges
- ECOSYSTEM: < 0.8.11
Update to 0.8.11