CVE-2026-59215

LOW3.1

Open WebUI: Private channel messages can be disclosed through cross-channel thread parent_id binding

Published Jul 9, 2026

Modified 1 months ago

Details

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

WEB

https://github.com/open-webui/open-webui/commit/a66477b7104c5d141ce7bffaea424b43e7666ef1

WEB

https://github.com/open-webui/open-webui/pull/25766

WEB

https://github.com/open-webui/open-webui/releases/tag/v0.10.0

WEB

https://github.com/open-webui/open-webui/security/advisories/GHSA-73x5-h92w-xc2j

ADVISORY

https://www.cve.org/CVERecord?id=CVE-2026-59215

CVSS Analysis