{"affected":[{"defaultStatus":"unaffected","ecosystem":"github","packageName":"blackholll/loonflow","product":"loonflow","source":"CNA: VulnCheck","vendor":"blackholll","versions":[{"lessThan":"r3.2.3","status":"affected","version":"0","versionType":"custom"}]}],"cveId":"CVE-2026-121937","cwes":["CWE-639"],"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.","epss":null,"exploits":[],"kev":null,"metrics":[{"score":2.3,"severity":"low","source":"CNA: VulnCheck","vector":"CVSS:4.0/AV:N/AC:H/AT:P/PR:L/UI:N/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N","version":"4.0"},{"score":3.1,"severity":"low","source":"CNA: VulnCheck","vector":"CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:N/A:N","version":"3.1"}],"modifiedAt":1793795477088,"publishedAt":1793795477088,"references":[{"source":"CNA: VulnCheck","tags":["issue-tracking"],"url":"https://github.com/blackholll/loonflow/issues/591"},{"source":"CNA: VulnCheck","tags":["third-party-advisory"],"url":"https://hackmd.io/@hieuPenguinnn/loonflow-ticket-flow-history-idor"},{"source":"CNA: VulnCheck","tags":["patch"],"url":"https://github.com/blackholll/loonflow/commit/a6495b0c2ca9e5dede8e49217a0468bcfa946de4"},{"source":"CNA: VulnCheck","tags":["technical-description"],"url":"https://github.com/blackholll/loonflow/blob/r3.2.2/backend/apps/ticket/views.py#L265-L286"},{"source":"CNA: VulnCheck","tags":["third-party-advisory"],"url":"https://www.vulncheck.com/advisories/loonflow-before-r3-2.3-idor-via-ticket-flow-history-endpoint"}],"remediation":[{"kind":"fix","source":"CNA: VulnCheck","text":"The reporting source identifies this reference as a patch. Check the advisory for affected versions and supported release branches.","url":"https://github.com/blackholll/loonflow/commit/a6495b0c2ca9e5dede8e49217a0468bcfa946de4"}],"revision":"739b1fdd844d5eb8cd85cac0091552d338afb8fe912fb5058d406a23f5d9864d","sources":[{"modifiedAt":1793795477088,"name":"CNA: VulnCheck","retrievedAt":1793797796780,"url":"https://www.cve.org/CVERecord?id=CVE-2026-121937"}],"ssvc":null,"status":"published","title":"loonflow before r3.2.3 IDOR via ticket_flow_history Endpoint","updatedAt":1793797796780}