SEPTEMBER 15, 2026
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Case File

CVE-2026-49431

LOW · CVSS 3.3 EPSS 0.12%

Source: NVD + CISA KEV + EPSS · Published 2026-08-19 · Last synced 2026-09-15

CyberRota Analysis

AI-Generated

The vulnerability allows any local user to manipulate ZFS dataset metadata by setting the internal flag "$hasrecvd" through the ZFS_IOC_SET_PROP ioctl, without proper privilege validation. This could lead to unauthorized access or modification of dataset properties, potentially impacting data integrity and security. Organizations using ZFS should prioritize addressing this issue to prevent exploitation by unprivileged users.

CVE
CVE-2026-49431
Severity
LOW
CVSS
3.3
EPSS
0.12%

Original NVD 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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