CVE-2026-59215
LOWOpen WebUI: Private channel messages can be disclosed through cross-channel thread parent_id binding
Title source: cnaDescription
Open WebUI is an extensible, feature-rich, and user-friendly self-hosted AI platform. Prior to 0.10.0, channel thread parent and reply handling did not bind parent_id to the channel in the URL, allowing an authenticated user to reference a message from another private or DM channel and disclose thread context across channels. This issue is fixed in version 0.10.0.
References (4)
Core 4
Core References
X_Refsource_Confirm x_refsource_confirm
https://github.com/open-webui/open-webui/security/advisories/GHSA-73x5-h92w-xc2j
X_Refsource_Misc x_refsource_misc
https://github.com/open-webui/open-webui/pull/25766
X_Refsource_Misc x_refsource_misc
https://github.com/open-webui/open-webui/commit/a66477b7104c5d141ce7bffaea424b43e7666ef1
X_Refsource_Misc x_refsource_misc
https://github.com/open-webui/open-webui/releases/tag/v0.10.0
Scores
CVSS v3
3.1
EPSS
0.0026
EPSS Percentile
17.1%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:N/A:N
CISA SSVC
Vulnrichment
Exploitation
poc
Automatable
no
Technical Impact
partial
Details
CWE
CWE-639
Status
published
Products (3)
open-webui/open-webui
< 0.10.0
openwebui/open_webui
< 0.10.0
pypi/open-webui
0 - 0.10.0PyPI
Published
Jul 09, 2026
Tracked Since
Jul 09, 2026