On August 6, 2026, MIT CSAIL researchers unveiled at Black Hat USA a new CPU attack that bypasses Spectre v2 fixes on both Intel and AMD processors. TONTOU exploits the gap between branch predictor neutralization and its actual use, extracting `/etc/shadow` at 5.47 bytes per second with 91.97% accuracy.

On August 6, 2026, a speculative execution vulnerability was publicly disclosed, affecting all AMD Zen 1 through Zen 4 processors via the Linux kernel's SRSO mitigation. A fix is already in linux.git; the community must patch without delay.