Medium severity · published May 14, 2024
CVE-2024-4769
When importing resources using Web Workers, error messages would distinguish the difference between `application/javascript` responses and non-script responses
5.9
CVSS
0.4%
EPSS
No
On KEV
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.
CVSS vector
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N
Attack vector
Network
Complexity
High
Privileges
None
User interaction
None
Confidentiality
High
Integrity
None
Availability
None
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.4% · higher than 31% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
FI
Firefox · Mozilla
before 126 · source: vendor, NVD, CISA
FE
Firefox ESR · Mozilla
before 115.11 · source: vendor, CISA
TH
Thunderbird · Mozilla
before 115.11 · source: vendor, NVD, CISA
DL
Debian Linux · Debian
10.0 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2024-4769
CVE.org
https://www.cve.org/CVERecord?id=CVE-2024-4769
Issue Tracking
https://bugzilla.mozilla.org/show_bug.cgi?id=1886108
Mailing List
https://lists.debian.org/debian-lts-announce/2024/05/msg00010.html
Mailing List
https://lists.debian.org/debian-lts-announce/2024/05/msg00012.html
Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2024-21/
Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2024-22/
Vendor Advisory
https://www.mozilla.org/security/advisories/mfsa2024-23/
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