CVE-2026-2783
EUVD-2026-850324.02.2026, 14:16
Information disclosure due to JIT miscompilation in the JavaScript Engine: JIT component. This vulnerability was fixed in Firefox 148, Firefox ESR 140.8, Thunderbird 148, and Thunderbird 140.8.
Early Detection
Affected products identified ahead of NVD analysis through intelligence sources.
| Vendor | Product | Version | Source |
|---|---|---|---|
| mozilla | firefox | 𝑥 < 148.0 | CNA |
| mozilla | firefox_esr | 116.0.0 ≤ 𝑥 < 140.8.0 | CNA |
| mozilla | thunderbird | 𝑥 < 148.0 | CNA |
| mozilla | thunderbird_esr | 𝑥 < 140.8.0 | CNA |
Debian Releases
Debian Product | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| firefox |
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| firefox-esr |
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| thunderbird |
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Ubuntu Releases
Ubuntu Product | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| firefox |
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| mozjs102 |
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| mozjs115 |
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| mozjs38 |
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| mozjs52 |
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| mozjs68 |
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| mozjs78 |
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| mozjs91 |
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| thunderbird |
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openSUSE / SLES Releases
openSUSE Product | |||||||||||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| MozillaFirefox |
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| MozillaFirefox-devel |
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| MozillaFirefox-translations-common |
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| MozillaFirefox-translations-other |
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| MozillaThunderbird |
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| MozillaThunderbird-translations-common |
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| MozillaThunderbird-translations-other |
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Red Hat Enterprise Linux Releases
Amazon Linux Releases
Common Weakness Enumeration
- CWE-843 - Access of Resource Using Incompatible Type ('Type Confusion')The program allocates or initializes a resource such as a pointer, object, or variable using one type, but it later accesses that resource using a type that is incompatible with the original type.
- CWE-200 - Exposure of Sensitive Information to an Unauthorized ActorThe product exposes sensitive information to an actor that is not explicitly authorized to have access to that information.