CVE-2026-8958

High

Published: 19/05/2026(UTC)Translated: 15/06/2026(UTC)NVD NIST

Summary

CVE-2026-8958 is a vulnerability related to information disclosure and sandbox escape in the Security: Process Sandboxing component. It has been fixed in Firefox 151, Firefox ESR 140.11, Thunderbird 151, and Thunderbird 140.11.

Risk Assessment

Information disclosure may lead to unauthorized access to user data, posing a serious security threat to the organization.

Recommendation

It is recommended to update to the latest versions of Firefox and Thunderbird to mitigate this vulnerability.

Original NVD description (English source)

Information disclosure, sandbox escape in the Security: Process Sandboxing component. This vulnerability was fixed in Firefox 151, Firefox ESR 140.11, Thunderbird 151, and Thunderbird 140.11.