CVE-2026-12291
Full vulnerability record from the local CVENow database.
Description
Use-after-free in the Networking: HTTP component. This vulnerability was fixed in Firefox 152, Firefox ESR 140.12, Firefox ESR 115.37, Thunderbird 152, and Thunderbird 140.12.
Severity
HIGH
CVSS score
8.8
(v3.1)
Vulnerability status
Modified
Source identifier
Published
2026-06-16 13:16:29.363000
Last modified
2026-10-26 11:10:00.157000
View original CVE JSON
{
"id": "CVE-2026-12291",
"sourceIdentifier": "[email protected]",
"published": "2026-06-16T13:16:29.363",
"lastModified": "2026-10-26T11:10:00.157",
"vulnStatus": "Modified",
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},
{
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"value": "Uso después de liberación en el componente de Redes: HTTP. Esta vulnerabilidad se corrigió en Firefox 152, Firefox ESR 140.12, Firefox ESR 115.37, Thunderbird 152 y Thunderbird 140.12."
}
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