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CVE-2024-4769 is an observable-discrepancy vulnerability in Web Worker resource imports. In affected Mozilla Firefox and Thunderbird versions, error messages differed depending on whether a cross-origin resource was served with the application/javascript content type or a non-script content type. This behavior exposed a cross-origin side channel that could reveal information otherwise protected by the same-origin policy. Affected versions are Firefox before 126, Firefox ESR before 115.11, and Thunderbird before 115.11.
Mallory correlates every CVE against your assets, your vendors, and active adversary campaigns. Know which vulnerabilities matter for you, not just which ones are loud.
What it means. What to do now. Patch path, mitigations, and the assume-compromise checklist.
What an attacker gets, and what they’ve been doing with it.
If you can’t patch tonight, do this now.
Patch, then assume compromise.
No public exploits tracked yet. Mallory keeps watching.
No public exploit code observed for this vulnerability.
Products and vendors Mallory has correlated with this vulnerability. Open in Mallory to drill down to specific CPE configurations and version ranges.
Vendor-confirmed product mapping. Mallory continuously reconciles this list against your asset inventory.
20 sources tracked across advisories, community write-ups, and news. New activity surfaces here as Mallory finds it.
A Firefox cross-origin information disclosure issue where responses could be distinguished between script and non-script content-types.
A cross-origin information disclosure issue where responses could be distinguished based on script versus non-script content types.
A Firefox cross-origin information disclosure issue where responses could be distinguished between script and non-script content-types.
A cross-origin information disclosure issue where responses could be distinguished based on script versus non-script content types.
Query your assets running an affected version, and investigate the blast radius.
Every observed campaign linking this CVE to a named adversary.
Malware families riding this exploit, with evidence and IOCs.
YARA, Sigma, Snort, and vendor rules, auto-deployed to your SIEM.
Cross-references every affected SKU, including bundled OEM variants.
Community discussion across Reddit, Mastodon, and other social sources.