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CVE-2026-45386

Open WebUI: An IDOR vulnerability exists in the pin_channel_message API endpoint PUBLISHED

Description (CNA)

Open WebUI is a self-hosted artificial intelligence platform designed to operate entirely offline. Prior to 0.9.5, Pin/Unpin is a write operation (modifies the message's is_pinned , pinned_by, pinned_at fields), but in standard channels it only checks read permission, allowing users with read-only access to pin/unpin any message. This vulnerability is fixed in 0.9.5.

Affected (CNA)

Vendor / productVersions
open-webui / open-webuiaffected < 0.9.5

CWE

CWE-639

References

ADP enrichment

CISA-ADP

No English description supplied.