CVE-2020-15655

A redirected HTTP request which is observed or modified through a web extension could bypass existing CORS checks, leading to potential disclosure of cross-origin information. This vulnerability affects Firefox ESR < 78.1, Firefox < 79, and Thunderbird < 78.1.

• http://lists.opensuse.org/opensuse-security-announce/2020-08/msg00025.htmlMailing List, Third Party Advisory
• https://bugzilla.mozilla.org/show_bug.cgi?id=1645204Issue Tracking, Vendor Advisory
• https://usn.ubuntu.com/4443-1/Third Party Advisory
• https://www.mozilla.org/security/advisories/mfsa2020-30/Vendor Advisory
• https://www.mozilla.org/security/advisories/mfsa2020-32/Vendor Advisory
• https://www.mozilla.org/security/advisories/mfsa2020-33/Vendor Advisory
• http://lists.opensuse.org/opensuse-security-announce/2020-08/msg00025.htmlMailing List, Third Party Advisory
• https://bugzilla.mozilla.org/show_bug.cgi?id=1645204Issue Tracking, Vendor Advisory
• https://usn.ubuntu.com/4443-1/Third Party Advisory
• https://www.mozilla.org/security/advisories/mfsa2020-30/Vendor Advisory
• https://www.mozilla.org/security/advisories/mfsa2020-32/Vendor Advisory
• https://www.mozilla.org/security/advisories/mfsa2020-33/Vendor Advisory

Published

Aug 10, 2020

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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