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.
CPE | Name | Operator | Version |
---|---|---|---|
firefox | lt | 96.0 | |
firefox_esr | lt | 91.6 | |
thunderbird | lt | 91.6 |