CVE-2026-54015 - Open WebUI: Prompt history IDOR: unbound history_id allows cross-prompt read and deletion

CVE ID :CVE-2026-54015
Published : June 23, 2026, 4:44 p.m. | 53 minutes ago
Description :Open WebUI is a self-hosted artificial intelligence platform designed to operate entirely offline. Prior to 0.9.6, Open WebUI's prompt version-history endpoints authorize the prompt_id in the URL but then act on caller-supplied history IDs without verifying that the history row belongs to that prompt (history_entry.prompt_id == prompt.id). This affects /api/v1/prompts/id/{prompt_id}/history/diff, /api/v1/prompts/id/{prompt_id}/update/version, and /api/v1/prompts/id/{prompt_id}/history/{history_id}. An authenticated user with access to any prompt they control, plus a victim prompt_history.id, can read or delete another user's private prompt history. This vulnerability is fixed in 0.9.6.
Severity: 0.0 | NA
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from Latest Vulnerabilities https://ift.tt/7PUu4Ax

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