ServiceWorker

Platform

Threat entity extracted from intelligence sources

Frequency

1

occurrences

First Seen

February 18, 2026

Last Seen

February 18, 2026

Overview

Recent Events

Relationships

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Related Clusters (1)

Vulnerabilities Affecting SameSite Cookie Protections in Firefox and Thunderbird

Feb 18·2 sources

Related Articles (1)

CVE-2022-45410 When a ServiceWorker intercepted a request with FetchEvent, the origin of the request was lost after the ServiceWorker took ownership of it. This had the effect of negating SameSite cookie protections. This was addressed in the spec and then in browsers. This vulnerability affects Firefox ESR < 102.5, Thunderbird < 102.5, and Firefox < 107.

Api.Msrc.Microsoft·Feb 18

Related Entities

Firefox Thunderbird