New Linux ‘Copy Fail’ flaw gives hackers root on major distros
An exploit has been published for a local privilege escalation vulnerability dubbed "Copy Fail" that impacts Linux kernels released since 2017, allowing an unprivileged local attacker to gain root permissions. [...]

An exploit has been published for a local privilege escalation vulnerability dubbed “Copy Fail” that impacts Linux kernels released since 2017, allowing an unprivileged local attacker to gain root permissions.
The vulnerability is tracked as CVE-2026-31431 and was discovered by the offensive security company Theori, using its AI-driven pentesting platform Xint Code after scaning the Linux crypto/ sybsystem for about an hour.
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