With the aid of the diagnostics_channel utility, an event can be hooked into whenever a worker thread is created. This is not limited only to workers but also exposes internal workers, where an instance of them can be fetched, and its constructor can be grabbed and reinstated for malicious usage. This vulnerability affects Permission Model users (--permission) on Node.js v20, v22, and v23.
This issue has been addressed in the following products: Red Hat Enterprise Linux 8 Via RHSA-2025:1351 https://access.redhat.com/errata/RHSA-2025:1351
This issue has been addressed in the following products: Red Hat Enterprise Linux 9 Via RHSA-2025:1443 https://access.redhat.com/errata/RHSA-2025:1443
This issue has been addressed in the following products: Red Hat Enterprise Linux 9.4 Extended Update Support Via RHSA-2025:1522 https://access.redhat.com/errata/RHSA-2025:1522
This issue has been addressed in the following products: Red Hat Enterprise Linux 8 Via RHSA-2025:1611 https://access.redhat.com/errata/RHSA-2025:1611
This issue has been addressed in the following products: Red Hat Enterprise Linux 9 Via RHSA-2025:1613 https://access.redhat.com/errata/RHSA-2025:1613