{"schemaVersion":3,"id":"CVE-2026-45316","aliases":["GHSA-jx2x-j75f-xq3j","PYSEC-2026-2745"],"status":"published","duplicateOf":null,"title":null,"description":"Open WebUI is a self-hosted artificial intelligence platform designed to operate entirely offline. Prior to 0.9.3, the POST /api/v1/notes/{id}/pin endpoint performs a write operation (toggling the is_pinned field) but only checks for read permission. Users with read-only access to a shared note can pin/unpin it, which is a state-modifying action that should require write permission. 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