Name: CVE-2026-0888: Exposure of Sensitive Information to an Unauthorized Actor
Creator: Rapid7
Published: 2026-01-13T00:00:00.000Z
License: https://www.rapid7.com/legal/website-terms-of-use/
Keywords: CVE, CVE-2026-0888, CVSS 5.3, EPSS 0.00347

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

CVSS Details

CVSS 3.1 Base Score: 5.3
CVSS 3.1 Vector: (CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N)

Covered by Rapid7

Product	Vendor Advisory	Solution File	Added	Published
Freebsd	—	Upgrade thunderbirdUpgrade firefox	Jan 27, 2026	Jan 15, 2026
Mfsa2026 01	—	Upgrade to Mozilla Firefox version 147.0Upgrade to the latest version of Mozilla Firefox	Jan 14, 2026	Jan 13, 2026
Mozilla Thunderbird	—	Upgrade to Mozilla Thunderbird version 147.0Upgrade to the latest version of Mozilla Thunderbird	Jan 16, 2026	Jan 13, 2026

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CVSS Details

Covered by Rapid7

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