CVE-2024-9399

A website configured to initiate a specially crafted WebTransport session could crash the Firefox process leading to a denial of service condition. This vulnerability affects Firefox < 131, Firefox ESR < 128.3, Thunderbird < 128.3, and Thunderbird < 131.

• CWE-404

• https://bugzilla.mozilla.org/show_bug.cgi?id=1907726Issue Tracking, Permissions Required
• https://www.mozilla.org/security/advisories/mfsa2024-46/Vendor Advisory
• https://www.mozilla.org/security/advisories/mfsa2024-47/Vendor Advisory
• https://www.mozilla.org/security/advisories/mfsa2024-49/Vendor Advisory
• https://www.mozilla.org/security/advisories/mfsa2024-50/Vendor Advisory

Published

Oct 1, 2024

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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