Low severity3.1NVD Advisory· Published Nov 4, 2026
CVE-2026-121937
CVE-2026-121937
Description
loonflow before r3.2.3 contains a missing authorization vulnerability in TicketFlowHistoryView that allows any authenticated user to read other users' ticket flow history by supplying a ticket UUID. Attackers can request the ticket_flow_history endpoint, which skips ticket_view_permission_check, to obtain approval comments and processor names, emails and phone numbers.
Affected products
1- Range: <r3.2.3
Patches
Vulnerability mechanics
References
5- github.com/blackholll/loonflow/blob/r3.2.2/backend/apps/ticket/views.pynvd
- github.com/blackholll/loonflow/commit/a6495b0c2ca9e5dede8e49217a0468bcfa946de4nvd
- github.com/blackholll/loonflow/issues/591nvd
- hackmd.io/@hieuPenguinnn/loonflow-ticket-flow-history-idornvd
- www.vulncheck.com/advisories/loonflow-before-r3-2.3-idor-via-ticket-flow-history-endpointnvd
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