CVE-2024-4769

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 v3.1 Score

5.9

MEDIUM

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N

Weakness Type (CWE)

CWE-351 CWE-351

Affected Products

Vendor	Product	Versions
mozilla	firefox	< 115.11.0
mozilla	firefox	< 126.0
mozilla	thunderbird	< 115.11.0
debian	debian_linux	All

References

Advisories & Patches

https://www.mozilla.org/security/advisories/mfsa2024-21/ https://www.mozilla.org/security/advisories/mfsa2024-22/ https://www.mozilla.org/security/advisories/mfsa2024-23/ https://www.mozilla.org/security/advisories/mfsa2024-21/ https://www.mozilla.org/security/advisories/mfsa2024-22/ https://www.mozilla.org/security/advisories/mfsa2024-23/

Other References

https://bugzilla.mozilla.org/show_bug.cgi?id=1886108 https://lists.debian.org/debian-lts-announce/2024/05/msg00010.html https://lists.debian.org/debian-lts-announce/2024/05/msg00012.html https://bugzilla.mozilla.org/show_bug.cgi?id=1886108 https://lists.debian.org/debian-lts-announce/2024/05/msg00010.html https://lists.debian.org/debian-lts-announce/2024/05/msg00012.html

Frequently Asked Questions

What is CVE-2024-4769? +

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. It has a CVSS v3.1 base score of 5.9 (MEDIUM).

How severe is CVE-2024-4769? +

CVE-2024-4769 has a CVSS v3.1 score of 5.9 out of 10, rated MEDIUM. This is a medium-severity vulnerability that should be remediated as part of regular maintenance.

What products are affected by CVE-2024-4769? +

CVE-2024-4769 affects products from debian, mozilla, specifically: debian_linux, firefox, thunderbird. Check the affected products table above for specific version ranges.

How do I check if I'm vulnerable to CVE-2024-4769? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

Related Vulnerabilities

CVE-2025-54412

skops is a Python library which helps users share and ship their scikit-learn based models. Versions 0.11.0 and below contain …

CVE-2025-54413

skops is a Python library which helps users share and ship their scikit-learn based models. Versions 0.11.0 and below contain …

CVE-2025-30510 9.8

An attacker can upload an arbitrary file instead of a plant image.

CVE-2025-31951 8.8

HCL BigFix RunBookAI is affected by a Unvalidated Command Input / Potential Command Smuggling vulnerability. A flaw in a component's …

CVE-2025-65960 6.6

Contao is an Open Source CMS. From version 4.0.0 to before 4.13.57, before 5.3.42, and before 5.6.5, back end users …

CVE-2025-47939 5.4

TYPO3 is an open source, PHP based web content management system. By design, the file management module in TYPO3’s backend …