{"apiVersion":"1.0","identifier":"CVE-2026-59714","description":"Open WebUI is an extensible, feature-rich, and user-friendly self-hosted AI platform. From 0.9.5 before 0.10.0, any authenticated user can overwrite the content of a message in a channel they do not belong to (including private and DM channels) by sending a chat completion request with a channel:-prefixed chat_id and a target message_id. The channel: path routes pipeline output through _make_channel_emitter, which writes to the Messages table using the caller-supplied message_id without binding it to the channel. This issue is fixed in version 0.10.0.","publishedAt":"2026-08-13T20:17:23","lastModifiedAt":"2026-08-14T19:17:23","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-59714","cvssScore":7.1,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:L","epssProbability":0.00341,"riskScore":0.73,"affectedProduct":"Open WebUI","affectedVersions":">=0.9.5,<0.10.0","vulnerabilityType":"Web app","operatingSystems":[],"links":{"self":"https://www.redsauce.net/api/cves/CVE-2026-59714","webPages":{"es":"https://www.redsauce.net/es/cves/CVE-2026-59714","en":"https://www.redsauce.net/en/cves/CVE-2026-59714","fr":"https://www.redsauce.net/fr/cves/CVE-2026-59714","pt":"https://www.redsauce.net/pt/cves/CVE-2026-59714","de":"https://www.redsauce.net/de/cves/CVE-2026-59714","sk":"https://www.redsauce.net/sk/cves/CVE-2026-59714","el":"https://www.redsauce.net/el/cves/CVE-2026-59714"},"source":"https://nvd.nist.gov/vuln/detail/CVE-2026-59714"}}