vulnerability
MFSA2024-21 Firefox: Security Vulnerabilities fixed in Firefox 126 (CVE-2024-4769)
| Severity | CVSS | Published | Added | Modified |
|---|---|---|---|---|
| 7 | (AV:N/AC:M/Au:N/C:C/I:N/A:N) | May 14, 2024 | May 15, 2024 | Mar 27, 2026 |
Severity
7
CVSS
(AV:N/AC:M/Au:N/C:C/I:N/A:N)
Published
May 14, 2024
Added
May 15, 2024
Modified
Mar 27, 2026
Description
When importing resources using Web Workers, error messages would distinguish the difference between `application/javascript` responses and non-script responses. This could have been abused to learn information cross-origin. This vulnerability affects Firefox < 126, Firefox ESR < 115.11, and Thunderbird < 115.11.
Solution
mozilla-firefox-upgrade-126_0
Rapid7 Labs
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