Main Vulnerability Database Vulnerabilities #VU152859

Cryptographic issues in Mozilla products - CVE-2026-100798

Published: September 29, 2026

Vulnerability identifier: #VU152859

CSH Severity: Medium

CVSS v4: 5.1 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:A/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N]

CVE-ID: CVE-2026-100798

CWE-ID: CWE-310

Exploitation vector: Remote access

Exploit availability: No public exploit available

Vulnerability details

The vulnerability allows a remote attacker to gain access to sensitive information.

The vulnerability exists due to cryptographic issues in Storage: Quota Manager component. A remote attacker can gain access to sensitive information.

Mozilla Firefox
Firefox ESR
Firefox for Android

Install updates from vendor's website.

Mozilla Firefox - update to 157.0
Firefox for Android - update to 157.0
Firefox ESR - update to 153.4.0