{"affected":[{"product":"Umami","source":"CNA: VulDB","vendor":"n/a","versions":[{"status":"affected","version":"3.3.*"},{"status":"affected","version":"3.4.0"},{"status":"affected","version":"3.4.1"}]}],"cveId":"CVE-2026-121531","cwes":["CWE-308","CWE-287"],"description":"A vulnerability has been found in Umami 3.3.x/3.4.0/3.4.1. This affects an unknown part of the file src/app/api/auth/login/route.ts of the component 2FA Policy Handler. The manipulation leads to use of single-factor authentication. It is possible to initiate the attack remotely. The exploit has been disclosed to the public and may be used. The vendor was contacted early about this disclosure but did not respond in any way.","epss":null,"exploits":[{"kind":"exploit","source":"CNA: VulDB","url":"https://github.com/waterhunter2000-svg/vulnerability-reports/blob/main/03-umami-enforced-2fa-not-applied.md"}],"kev":null,"metrics":[{"score":5.3,"severity":"medium","source":"CNA: VulDB","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P","version":"4.0"},{"score":6.3,"severity":"medium","source":"CNA: VulDB","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L/E:P/RL:X/RC:C","version":"3.1"},{"score":6.3,"severity":"medium","source":"CNA: VulDB","vector":"CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L/E:P/RL:X/RC:C","version":"3.0"},{"score":6.5,"severity":"medium","source":"CNA: VulDB","vector":"AV:N/AC:L/Au:S/C:P/I:P/A:P/E:POC/RL:ND/RC:C","version":"2.0"},{"score":2.1,"severity":"low","source":"NVD: cna@vuldb.com","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X","version":"4.0"},{"score":6.3,"severity":"medium","source":"NVD: cna@vuldb.com","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:L","version":"3.1"},{"score":6.5,"severity":"medium","source":"NVD: cna@vuldb.com","vector":"AV:N/AC:L/Au:S/C:P/I:P/A:P","version":"2.0"}],"modifiedAt":1793747854340,"publishedAt":1793742307984,"references":[{"source":"CNA: VulDB","tags":["vdb-entry"],"url":"https://vuldb.com/vuln/430290"},{"source":"CNA: VulDB","tags":["signature","permissions-required"],"url":"https://vuldb.com/vuln/430290/cti"},{"source":"CNA: VulDB","tags":["third-party-advisory"],"url":"https://vuldb.com/cve/CVE-2026-121531"},{"source":"CNA: VulDB","tags":["third-party-advisory"],"url":"https://vuldb.com/submit/1019994"},{"source":"CNA: VulDB","tags":["related"],"url":"https://github.com/waterhunter2000-svg/vulnerability-reports"},{"source":"CNA: VulDB","tags":["broken-link"],"url":"https://github.com/umami-software/umami/security/advisories/GHSA-29fx-pxjg-35rm"},{"source":"CNA: VulDB","tags":["exploit"],"url":"https://github.com/waterhunter2000-svg/vulnerability-reports/blob/main/03-umami-enforced-2fa-not-applied.md"},{"source":"cna@vuldb.com","tags":[],"url":"https://github.com/umami-software/umami/security/advisories/GHSA-29fx-pxjg-35rm"},{"source":"cna@vuldb.com","tags":[],"url":"https://github.com/waterhunter2000-svg/vulnerability-reports"},{"source":"cna@vuldb.com","tags":[],"url":"https://github.com/waterhunter2000-svg/vulnerability-reports/blob/main/03-umami-enforced-2fa-not-applied.md"},{"source":"cna@vuldb.com","tags":[],"url":"https://vuldb.com/cve/CVE-2026-121531"},{"source":"cna@vuldb.com","tags":[],"url":"https://vuldb.com/submit/1019994"},{"source":"cna@vuldb.com","tags":[],"url":"https://vuldb.com/vuln/430290"},{"source":"cna@vuldb.com","tags":[],"url":"https://vuldb.com/vuln/430290/cti"}],"remediation":[],"revision":"64e642c9aee99f028de8f4f723d4bcb0c70bd358989bfc7c43902d52989b2e0f","sources":[{"modifiedAt":1793745545145,"name":"CNA: VulDB","retrievedAt":1793747954053,"url":"https://www.cve.org/CVERecord?id=CVE-2026-121531"},{"modifiedAt":1793747854340,"name":"NVD","retrievedAt":1793751773882,"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-121531"}],"ssvc":{"assessedAt":1793745492855,"automatable":"no","exploitation":"poc","source":"ADP: CISA-ADP","technicalImpact":"partial"},"status":"published","title":"Umami 2FA Policy route.ts single-factor authentication","updatedAt":1793751773882}