Low severityNVD Advisory· Published Jul 9, 2026· Updated Jul 9, 2026
Open WebUI: Private channel messages can be disclosed through cross-channel thread parent_id binding
CVE-2026-59215
Description
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.
Affected packages
Versions sourced from the GitHub Security Advisory.
| Package | Affected versions | Patched versions |
|---|---|---|
open-webuiPyPI | < 0.10.0 | 0.10.0 |
Affected products
1- Range: <0.10.0
Patches
Vulnerability mechanics
References
6- github.com/advisories/GHSA-73x5-h92w-xc2jghsaADVISORY
- nvd.nist.gov/vuln/detail/CVE-2026-59215ghsaADVISORY
- github.com/open-webui/open-webui/commit/a66477b7104c5d141ce7bffaea424b43e7666ef1ghsax_refsource_MISCWEB
- github.com/open-webui/open-webui/pull/25766ghsax_refsource_MISCWEB
- github.com/open-webui/open-webui/releases/tag/v0.10.0ghsax_refsource_MISCWEB
- github.com/open-webui/open-webui/security/advisories/GHSA-73x5-h92w-xc2jghsax_refsource_CONFIRMWEB
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