Live › vulnerability › CVE-2026-58826
A use-after-free in the kernel's ksys_unshare routine in fork.c corrupts memory. A local user with no extra privileges can use it to gain higher privileges on the system.
Summary written from the sources below. Check the originals before acting.
First seen by InfraStack 2026-11-02 20:35 UTC. All times on this page are UTC.
Systems running a Linux kernel that includes the ksys_unshare code in fork.c; the sources do not state affected kernel version ranges. Exposure requires a local account or code execution on the machine first, so multi-user hosts and shared servers matter most. unknown for the rest.
No product ranges from the sources yet.
Unknown from the sources.
No fix yet, per the sources.
Each row is the first time that source carried this signal. The analyst’s rows are its own findings.
In ksys_unshare of fork.c, there is a possible memory corruption due to a use after free. This could lead to local escalation of privilege with no additional execution privileges needed. User interaction is not needed for exploitation.
This page as .md · .json · in your agent: get_signal("CVE-2026-58826")
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