{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-21409","assignerOrgId":"ede6fdc4-6654-4307-a26d-3331c018e2ce","state":"PUBLISHED","assignerShortName":"jpcert","dateReserved":"2025-12-24T07:24:57.904Z","datePublished":"2026-01-09T07:15:52.994Z","dateUpdated":"2026-01-09T18:11:55.373Z"},"containers":{"cna":{"affected":[{"vendor":"Ricoh Company, Ltd.","product":"RICOH Streamline NX","versions":[{"version":"3.5.1 to 24R3","status":"affected"}]}],"descriptions":[{"lang":"en","value":"Improper authorization vulnerability exists in RICOH Streamline NX 3.5.1 to 24R3. If a man-in-the-middle attack is conducted on the communication between the affected product and its user, and some crafted request is processed by the product, the user's registration information and/or OIDC (OpenID Connect) tokens may be retrieved."}],"problemTypes":[{"descriptions":[{"description":"Authorization bypass through user-controlled key","lang":"en-US","cweId":"CWE-639","type":"CWE"}]}],"references":[{"url":"https://www.ricoh.com/products/security/vulnerabilities/vul?id=ricoh-2025-000011"},{"url":"https://jvn.jp/en/jp/JVN12770174/"}],"metrics":[{"format":"CVSS","scenarios":[{"lang":"en-US","value":"GENERAL"}],"cvssV3_0":{"version":"3.0","baseSeverity":"MEDIUM","baseScore":5.9,"vectorString":"CVSS:3.0/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N"}},{"format":"CVSS","scenarios":[{"lang":"en-US","value":"GENERAL"}],"cvssV4_0":{"version":"4.0","baseSeverity":"HIGH","baseScore":8.2,"vectorString":"CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N"}}],"providerMetadata":{"orgId":"ede6fdc4-6654-4307-a26d-3331c018e2ce","shortName":"jpcert","dateUpdated":"2026-01-09T07:15:52.994Z"}},"adp":[{"metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-01-09T18:11:32.736478Z","id":"CVE-2026-21409","options":[{"Exploitation":"none"},{"Automatable":"no"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"title":"CISA ADP Vulnrichment","providerMetadata":{"orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","shortName":"CISA-ADP","dateUpdated":"2026-01-09T18:11:55.373Z"}}]}}