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CVE-2026-4701
Published: Mar 24, 2026
Modified: May 12, 2026
PUBLISHED
Description
Use-after-free in the JavaScript Engine component. This vulnerability was fixed in Firefox 149, Firefox ESR 140.9, Thunderbird 149, and Thunderbird 140.9.
| Vendor | Product | Versions |
|---|---|---|
Mozilla | Firefox | unaffected 140.9 - <= 140.*unaffected 149 - <= * |
Mozilla | Thunderbird | unaffected 140.9 - <= 140.*unaffected 149 - <= * |
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