CVE-2026-118011
Received Received - Intake

CSS Frame Poisoning in Firefox

Publication date: 2026-10-27

Last updated on: 2026-10-27

Assigner: Mozilla Corporation

Description
Frame poisoning in the CSS Parsing and Computation component. This vulnerability was fixed in Firefox 159.

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Meta Information

Published
2026-10-27
Last Modified
2026-10-27
Generated
2026-10-27
AI Q&A
2026-10-27
EPSS Evaluated
N/A
NVD
CVE-2026-118011
EUVD
EUVD-2026-110909

Affected Vendors & Products

Currently, no data is known.

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Exploitability

CWE
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KEV
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CWE ID Description
CWE-UNKNOWN

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Executive Summary

This vulnerability involves frame poisoning in the CSS Parsing and Computation component of Firefox. It was addressed in Firefox version 159.

Impact Analysis

The vulnerability could allow attackers to manipulate CSS parsing, potentially leading to unexpected behavior or security issues in web applications.

Mitigation Strategies

Update Firefox to version 159 or later to address the frame poisoning vulnerability in the CSS Parsing and Computation component.

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