Unrated severityNVD Advisory· Published Aug 19, 2026
CVE-2026-49431
CVE-2026-49431
Description
The ZFS_IOC_SET_PROP ioctl, used by zfs-set(8), incorrectly validated the calling user such that an unprivileged user is able to set metadata on a dataset indicating that the dataset has received properties from a zfs-recv(8) stream.
Any local user can set the internal ZFS metadata flag "$hasrecvd" on datasets via ZFS_IOC_SET_PROP.
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Affected products
1Patches
Vulnerability mechanics
References
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