CVE-2026-118011

CVE-2026-118011: vulnerability in Mozilla Firefox

Frame poisoning in the CSS Parsing and Computation component

Published

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3Vexday Risk Score

No sign of exploitation. No public exploitation artifact known so far.

ssvc Trackepss 0.2%
Frame poisoning in the CSS Parsing and Computation component. This vulnerability was fixed in Firefox 159 and Thunderbird 159.
Affected products
Mozilla · FirefoxMozilla · Thunderbird
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