What is GHSA-hrxx-hfqm-f933?

GHSA-hrxx-hfqm-f933 is a security advisory published by GitHub Security Advisories with unknown severity. The ZFS_IOC_SET_PROP ioctl, used by zfs-set(8), incorrectly validated the calling user such that...

Which CVE IDs does GHSA-hrxx-hfqm-f933 cover?

GHSA-hrxx-hfqm-f933 covers the following CVE IDs: CVE-2026-49431. Each CVE has its own detail page on EchelonGraph Pulse with the synthesized EG score.

GHSA-hrxx-hfqm-f933unknown

The ZFS_IOC_SET_PROP ioctl, used by zfs-set(8), incorrectly validated the calling user such that...

Vendor

GitHub Security Advisories

Published

August 19, 2026

Last Modified

August 19, 2026

🔗 CVE IDs covered (1)

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.

🔗 References (3)

https://nvd.nist.gov/vuln/detail/CVE-2026-49431
https://security.freebsd.org/advisories/FreeBSD-SA-26:40.zfs.asc
https://github.com/advisories/GHSA-hrxx-hfqm-f933