CVE-2026-118004
Received Received - Intake

Incorrect Boundary Handling in Firefox CSS Transitions and Animations

Publication date: 2026-10-27

Last updated on: 2026-10-27

Assigner: Mozilla Corporation

Description
Incorrect boundary conditions in the CSS Transitions and Animations component. This vulnerability was fixed in Firefox 159 and Firefox ESR 153.6.

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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-2026-118004
EUVD
EUVD-2026-110902

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 incorrect boundary conditions in the CSS Transitions and Animations component of Firefox. It was addressed in Firefox 159 and Firefox ESR 153.6.

Detection Guidance

Detection requires checking the installed Firefox version. Compare your version against Firefox 159 or Firefox ESR 153.6. If your version is older, the system is vulnerable. Use commands like 'firefox --version' on Linux/macOS or check 'Help > About Firefox' on any OS.

Impact Analysis

The vulnerability could allow unexpected behavior in CSS transitions and animations, potentially leading to rendering issues or crashes in affected Firefox versions.

Mitigation Strategies

Update Firefox to version 159 or Firefox ESR 153.6 or later immediately. Disable CSS Transitions and Animations if updates are not immediately possible, though this may impact functionality.

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