njs through 0.7.0, used in NGINX, was discovered to contain a heap use-after-free in njs_await_fulfilled.
https://security.netapp.com/advisory/ntap-20220303-0007/
https://github.com/nginx/njs/issues/451
https://github.com/nginx/njs/commit/6a07c2156a07ef307b6dcf3c2ca8571a5f1af7a6