2018 at the earliest: https://en.wikipedia.org/wiki/Spectre_(security_vulnerability) https://en.wikipedia.org/wiki/Spectre_(security_vulnerabilit... It's not

2018 at the earliest: https://en.wikipedia.org/wiki/Spectre_(security_vulnerability) https://en.wikipedia.org/wiki/Spectre_(security_vulnerabilit... It's not a browser vulnerability per se, but it's still mitigated by having a separate address space.