Why “firecracker” is being discussed
The most recent Hacker News stories and comments contributing to this topic's mentions.
I actually do use Firecracker without a network adapter, though vsock/virtio could have remaining issues
by speedstyle · Nov 7, 2026
Security Exploit requires layering with a Sys Admin Permission Exploit. Nuff said. This so-called Firecracker exploit never explained how the Guest was able to write to the Host…
by bulk88 · Nov 7, 2026
sounds like saying it's a Ubuntu thing because you can install firecracker and use kvm to me. the truth is there plenty more kvm escapes that will be found.
by zobzu · Nov 7, 2026
> We can PoC the Firecracker VM Escape on that service. Does this mean you ran the exploit on your service and confirmed it worked? If so, why would you be advertising this, lol…
by theowaway213456 · Nov 7, 2026
Did they break the jailer? I thought from these comments they disabled it. then the breach happens in KVM? Isn’t KVM its own software repo, and firecracker sits on top? How is t…
by stogot · Nov 7, 2026
Both, maybe? I mean: whether or not they broke the jailer, we know the jailer is breakable; it wouldn't really even be newsworthy to have an LPE that breaks the Firecracker jailer.
by tptacek · Nov 7, 2026
Interest
Proportion of Hacker News items mentioning "firecracker" over time.
Mentions
Total number of Hacker News items mentioning "firecracker" over time.
A firecracker is a small explosive device primarily designed to produce a large amount of noise, especially in the form of a loud bang, usually for celebration or entertainment; any visual effect is incidental to this goal. They have fuses, and are wrapped in a heavy paper casing to contain the explosive compound. Firecrackers, along with fireworks, originated in China. Read more on Wikipedia