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 "$hasrecvd" on datasets via ZFS_IOC_SET_PROP.
Any local user can set the internal ZFS metadata flag "$hasrecvd" on datasets via ZFS_IOC_SET_PROP.
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Affected Vendors & Products
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Fixes
Solution
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References
History
Wed, 19 Aug 2026 05:30:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| 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. | |
| Title | Incorrect user validation in ZFS_IOC_SET_PROP ioctl | |
| Weaknesses | CWE-863 | |
| References |
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Projects
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MITRE
Status: PUBLISHED
Assigner: freebsd
Published:
Updated: 2026-08-19T05:15:37.371Z
Reserved: 2026-05-29T20:24:28.617Z
Link: CVE-2026-49431
Vulnrichment
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NVD
Status : Received
Published: 2026-08-19T06:17:43.027
Modified: 2026-08-19T06:17:43.027
Link: CVE-2026-49431
Redhat
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OpenCVE Enrichment
Updated: 2026-08-19T06:30:05Z
Weaknesses