{"id":"CVE-2026-119744","aliases":[],"url":"https://o3.security/vulnerability/CVE-2026-119744","summary":"Cendio ThinLinc contains an improper authentication vulnerability in its browser-based web client (tlwebaccess) that allows an authenticated attacker to impersonate any other user,…","details":"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.","published":"2026-11-05T15:17:20.557","modified":"2026-11-05T15:17:20.557","cvss":{"score":8.8,"severity":"HIGH","vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H"},"epss":null,"cisaKev":null,"exploitsKnown":null,"affectedPackages":[],"fix":null,"references":[{"type":"WEB","url":"https://community.thinlinc.com/t/thinlinc-4-15-1-through-4-20-1-security-release/1985"},{"type":"WEB","url":"https://community.thinlinc.com/t/urgent-thinlinc-security-issue/1970"},{"type":"WEB","url":"https://www.vulncheck.com/advisories/cendio-thinlinc-improper-authentication-via-web-access"}],"provenance":{"sources":["OSV.dev","NVD","FIRST.org (EPSS)"],"lastVerified":"2026-11-05T15:17:20.557"}}