CVE-2026-0888

MEDIUM

Firefox < 147.0 - Information Disclosure in XML Component

Title source: llm

Information disclosure in the XML component. This vulnerability was fixed in Firefox 147 and Thunderbird 147.

Core 3

Core References

Vendor Advisory

Permissions Required

Vendor Advisory

CVSS v3 5.3

EPSS 0.0001

EPSS Percentile 3.5%

Attack Vector NETWORK

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

Vulnrichment

Exploitation none

Automatable yes

Technical Impact partial

CWE

CWE-200

Status published

Products (4)

mozilla/firefox < 147.0

Mozilla/Firefox 147

mozilla/thunderbird < 147.0

Mozilla/Thunderbird 147

Published Jan 13, 2026

Tracked Since Feb 18, 2026