CVE-2026-46333 is a Linux kernel local information-disclosure flaw that can let unprivileged users read files normally restricted to root, including SSH keys and other sensitive credentials. The issue affects multiple LTS kernel lines from 5.10 upward, and a fix has landed upstream in commit 31e62c2 adjusting ptrace get_dumpable logic.
Why it matters: Multi-user Linux systems and servers running affected kernels may allow low-privilege users to access highly sensitive secrets and escalate further compromise. Defenders should identify affected kernel versions and apply the upstream fix or vendor updates promptly.
2026.05.18
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This article establishes a distinct vulnerability story centered on CVE-2026-46333, its impact across Linux LTS kernels, and the availability of a fix.
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