CVE-2019-12383

Tor Browser before 8.0.1 has an information exposure vulnerability. It allows remote attackers to detect the browser's UI locale by measuring a button width, even if the user has a "Don't send my language" setting.

• CWE-203

• http://www.securityfocus.com/bid/108484Broken Link, Third Party Advisory, VDB Entry
• https://gitweb.torproject.org/tor-browser.git/commit/?id=cbb04b72c68272c2de42f157d40cd7d29a6b7b55Mailing List, Patch, Third Party Advisory
• https://hackerone.com/reports/282748Issue Tracking, Third Party Advisory
• https://trac.torproject.org/projects/tor/ticket/24056Vendor Advisory
• http://www.securityfocus.com/bid/108484Broken Link, Third Party Advisory, VDB Entry
• https://gitweb.torproject.org/tor-browser.git/commit/?id=cbb04b72c68272c2de42f157d40cd7d29a6b7b55Mailing List, Patch, Third Party Advisory
• https://hackerone.com/reports/282748Issue Tracking, Third Party Advisory
• https://trac.torproject.org/projects/tor/ticket/24056Vendor Advisory

Published

May 28, 2019

Last Modified

Jun 17, 2026

Status

Modified

• How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
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