CVE-2022-26382

MEDIUM

Firefox < 98.0 - Information Disclosure via Autofill Tooltip Font Rendering

Title source: llm
STIX 2.1

Description

While the text displayed in Autofill tooltips cannot be directly read by JavaScript, the text was rendered using page fonts. Side-channel attacks on the text by using specially crafted fonts could have lead to this text being inferred by the webpage. This vulnerability affects Firefox < 98.

References (2)

Core 2
Core References
Exploit, Issue Tracking, Vendor Advisory
https://bugzilla.mozilla.org/show_bug.cgi?id=1741888

Scores

CVSS v3 4.3
EPSS 0.0029
EPSS Percentile 52.7%
Attack Vector NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N

CISA SSVC

Vulnrichment
Exploitation poc
Automatable no
Technical Impact partial

Details

CWE
CWE-203
Status published
Products (1)
mozilla/firefox < 98.0
Published Dec 22, 2022
Tracked Since Feb 18, 2026