Description
Starting with Firefox 142, it was possible for a compromised child process to trigger a use-after-free in the GPU or browser process using WebGPU-related IPC calls. This may have been usable to escape the child process sandbox. This vulnerability affects Firefox < 144.0.2.
Product status
Credits
Oskar L
References
bugzilla.mozilla.org/show_bug.cgi?id=1993113
www.mozilla.org/security/advisories/mfsa2025-86/