description: When a worker is shutdown, it was possible to cause script to run late in the lifecycle, at a point after where it should not be possible. This vulnerability affects Firefox < 96, Thunderbird < 91.6, and Firefox ESR < 91.6.
problem types: Script Execution during invalid object state
affected:
{
vendor: Mozilla
product: Firefox
versions:
version: unspecified, lessThan: 96, status: affected, versionType: custom
}
{
vendor: Mozilla
product: Thunderbird
versions:
version: unspecified, lessThan: 91.6, status: affected, versionType: custom
}
{
vendor: Mozilla
product: Firefox ESR
versions:
version: unspecified, lessThan: 91.6, status: affected, versionType: custom
}
