{"affected":[{"defaultStatus":"unaffected","product":"ThinLinc","source":"CNA: VulnCheck","vendor":"Cendio","versions":[{"lessThan":"4.15.1","status":"affected","version":"4.1.0","versionType":"semver"},{"lessThan":"4.16.1","status":"affected","version":"4.16.0","versionType":"semver"},{"lessThan":"4.17.1","status":"affected","version":"4.17.0","versionType":"semver"},{"lessThan":"4.18.1","status":"affected","version":"4.18.0","versionType":"semver"},{"lessThan":"4.19.1","status":"affected","version":"4.19.0","versionType":"semver"},{"lessThan":"4.20.1","status":"affected","version":"4.20.0","versionType":"semver"}]}],"cveId":"CVE-2026-119744","cwes":["CWE-290"],"description":"Cendio ThinLinc contains an improper authentication vulnerability in its browser-based web client (tlwebaccess) that allows an authenticated attacker to impersonate any other user, including root, by exploiting flaws in multi-step authentication flows such as one-time passwords, login banners, or expired password prompts. Attackers can leverage this authentication bypass during the multi-step login process to gain unauthorized access to other user accounts, including administrative privileges, in versions from 4.1.0 through 4.20.0.","epss":null,"exploits":[],"kev":null,"metrics":[{"score":7.7,"severity":"high","source":"CNA: VulnCheck","vector":"CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N","version":"4.0"},{"score":8.8,"severity":"high","source":"CNA: VulnCheck","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","version":"3.1"}],"modifiedAt":1793890242158,"publishedAt":1793890242158,"references":[{"source":"CNA: VulnCheck","tags":["release-notes","patch"],"url":"https://community.thinlinc.com/t/thinlinc-4-15-1-through-4-20-1-security-release/1985"},{"source":"CNA: VulnCheck","tags":["vendor-advisory"],"url":"https://community.thinlinc.com/t/urgent-thinlinc-security-issue/1970"},{"source":"CNA: VulnCheck","tags":["third-party-advisory"],"url":"https://www.vulncheck.com/advisories/cendio-thinlinc-improper-authentication-via-web-access"}],"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://community.thinlinc.com/t/thinlinc-4-15-1-through-4-20-1-security-release/1985"}],"revision":"320b265a021d772d558613d34e7583da18389b5c1f7f2a442da1cf2dffc242d6","sources":[{"modifiedAt":1793890242158,"name":"CNA: VulnCheck","retrievedAt":1793891455698,"url":"https://www.cve.org/CVERecord?id=CVE-2026-119744"}],"ssvc":null,"status":"published","title":"Cendio ThinLinc Improper Authentication via Web Access","updatedAt":1793891455698}