CVE-2026-59215

Summary

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 Software

Weaknesses

• CWE-639: CWE-639: Authorization Bypass Through User-Controlled Key

ADP Enrichment

CISA ADP Vulnrichment

• SSVC:
• Exploitation: poc
  • Automatable: no
  • Technical Impact: partial

Additional References

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

References

• https://github.com/open-webui/open-webui/security/advisories/GHSA-73x5-h92w-xc2j
• https://github.com/open-webui/open-webui/pull/25766
• https://github.com/open-webui/open-webui/commit/a66477b7104c5d141ce7bffaea424b43e7666ef1
• https://github.com/open-webui/open-webui/releases/tag/v0.10.0

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