CVE-2026-121937
lowloonflow before r3.2.3 contains a missing authorization vulnerability in TicketFlowHistoryView that allows any authenticated user to read other users' ticket f…
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.
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:N/A:N Affected products
Not reported by the source (unknown — not "none").
Weakness classification (CWE)
Source: NVD / CISA. “NVD-CWE-Other” and “NVD-CWE-noinfo” mean NVD could not assign a specific weakness.
Mitigation & advisories
No vendor advisory or patch reference tagged by NVD. Check the references below.
References
- https://github.com/blackholll/loonflow/blob/r3.2.2/backend/apps/ticket/views.py#L265-L286 disclosure@vulncheck.com
- https://github.com/blackholll/loonflow/commit/a6495b0c2ca9e5dede8e49217a0468bcfa946de4 disclosure@vulncheck.com
- https://github.com/blackholll/loonflow/issues/591 disclosure@vulncheck.com
- https://hackmd.io/@hieuPenguinnn/loonflow-ticket-flow-history-idor disclosure@vulncheck.com
- https://www.vulncheck.com/advisories/loonflow-before-r3-2.3-idor-via-ticket-flow-history-e... disclosure@vulncheck.com
- https://hackmd.io/@hieuPenguinnn/cve-2026-121937-loonflow-ticket-flow-history-idor 134c704f-9b21-4f2e-91b3-4a467353bcc0