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Unrated severityNVD Advisory· Published Oct 27, 2026· Updated Oct 27, 2026

CVE-2026-117959

CVE-2026-117959

Description

Site isolation issue in the DOM: Service Workers component. This vulnerability was fixed in Firefox 159 and Firefox ESR 153.6.

Affected products

2

Mozilla Corporation/Firefox Esrllm-fuzzy
Range: up to 153.6
Mozilla Corporation/Firefoxllm-fuzzy
Range: up to 159

Patches

Vulnerability mechanics

References

3

News mentions

0

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