CVE-2026-0888

Information disclosure in the XML component

State: Published
Severity: 5.3 Medium
Published: Jan 13, 2026
Updated: Apr 13, 2026
Reserved: Jan 13, 2026

Description

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

Scores

CVSS	Score	Vector	Source
3.1	5.3 Medium	CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N	CISA-ADP

Weaknesses

CWE-200 Exposure of Sensitive Information to an Unauthorized Actor

Affected Products

Product	Versions
FirefoxMozilla	147 and laterNot affected
ThunderbirdMozilla	147 and laterNot affected

References

https://bugzilla.mozilla.org/show_bug.cgi?id=1985996
https://www.mozilla.org/security/advisories/mfsa2026-01/
https://www.mozilla.org/security/advisories/mfsa2026-04/

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