Reference page — cumulative record through Wednesday, August 19, 2026 UTC. Reference pages update as the archive grows; only dated daily editions are immutable pages of record.
AV AC PR UI S C I A CVSS EPSS %ile KEV N L L N U N L N 4.3 .0021 11.1 —
AFFECTED Product Versions Fixed open-webui < 0.9.6 – —
TIMELINE Jun 11 Reserved by GitHub_M Jun 23 EXPLOIT PUBLISHED — CVE-2026-54006 (open-webui). Public exploit reference added. Jun 23 Published (CNA: GitHub_M)
Open WebUI is a self-hosted artificial intelligence platform designed to operate entirely offline. Prior to 0.9.6, POST /api/v1/calendars/events/{event_id}/update validates that the caller has write access to the calendar the event currently belongs to, but does not validate the destination calendar_id supplied in the request body. The model layer then persists the new calendar_id unconditionally. A regular user-role account can therefore create an event in their own calendar and immediately move it into any other user's calendar whose ID they know — bypassing the authorization check that create_event correctly performs. This vulnerability is fixed in 0.9.6.
| Date | Event | Detail |
|---|---|---|
| June 11, 2026 | Reserved | Reserved by GitHub_M |
| June 23, 2026 | EXPLOIT PUBLISHED | EXPLOIT PUBLISHED — CVE-2026-54006 (open-webui). Public exploit reference added. |
| June 23, 2026 | Published | Published (CNA: GitHub_M) |
| Vendor | Product / Package | Ecosystem | Version introduced | Fixed |
|---|---|---|---|---|
| open-webui | open-webui | — | < 0.9.6 | — |
Authoritative record: CVE-2026-54006 at cve.org
Vendors: open-webui
Weaknesses: CWE-639
This is a reference page, not a dated page of record. It assembles the complete lifecycle of CVE-2026-54006 from the CVE Program record, NVD enrichment, the CISA KEV catalog, EPSS, and OSV advisories. The box score's numbers (CVSS, EPSS, KEV status) are current as of Wednesday, August 19, 2026 UTC and are re-derived as the archive grows; only dated daily editions are immutable pages of record. The authoritative source for this identifier is cve.org.