CVE-2026-49431
Last modified
CVE-2026-49431 is a low-severity vulnerability rated 3.3/10 on the CVSS scale. 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 "$hasrecvd" on datasets via ZFS_IOC_SET_PROP.. EPSS estimates a 0.12% chance of exploitation in the next 30 days.
Description
The ZFS_IOC_SET_PROP ioctl, used by zfs-set(8), incorrectly validated the calling user such that an unprivileged user is able to set metadata on a dataset indicating that the dataset has received properties from a zfs-recv(8) stream. Any local user can set the internal ZFS metadata flag "$hasrecvd" on datasets via ZFS_IOC_SET_PROP.
Metrics
Weakness Enumeration
Affected Software
| Vendor | Product | Versions |
|---|---|---|
| Freebsd | Freebsd | 14.3 |
| Freebsd | Freebsd | 14.4 |
| Freebsd | Freebsd | 15.0 |
| Freebsd | Freebsd | 15.1 |
References
Timeline
- Published
- Last Modified
- Status
- Analyzed
Frequently Asked Questions
What is CVE-2026-49431?
How severe is CVE-2026-49431?
How do I fix CVE-2026-49431?
How Strix Helps
- Uncovering a hidden BOLA in Appsmith's snapshot logicStrix autonomously discovered a BOLA/IDOR vulnerability in Appsmith's snapshot deletion path.
- Autonomous PentestingAI agents that find and validate exploitable vulnerabilities like this one across your applications.
- PR ReviewsPentest every pull request so vulnerable code is caught before it ships to production.
- AI Penetration TestingHow AI-driven penetration testing continuously covers your attack surface.
Related CVEs from 2026
- CVE-2026-49425The compat32 kevent() handler translates a 64-bit kevent str…5.5
- CVE-2026-49426When auditing a system call executed via ptrace(PT_SC_REMOTE…3.3
- CVE-2026-49427Pages belonging to largepage shared memory objects were not …8.8
- CVE-2026-49428Certain system calls, such open(2) with the O_TRUNC flag set…8.4
- CVE-2026-49429The ZFS_IOC_USERSPACE_MANY ioctl, used by zfs-userspace(8), …7.8
- CVE-2026-49430The ZFS_IOC_RECV_NEW ioctl, in the heal receive path, simila…7.8
- CVE-2026-49432Improper Input Validation vulnerability in Apache ActiveMQ, …7.5
- CVE-2026-49433The DeepAI endpoint 'https://api.deepai.org/change_user_emai…5
- CVE-2026-49434Improper Input Validation vulnerability in Apache ActiveMQ B…7.5
- CVE-2026-49435Keysight IxChariot Endpoint and associated products contain …9.8
- CVE-2026-49436LinkAce is a self-hosted archive to collect website links. P…7.3
- CVE-2026-49439OpenRemote is an open-source internet-of-things platform. Pr…4.3
Are you affected by CVE-2026-49431?
Run a free Strix scan to check your systems for this vulnerability.
Scan your code nowSource: NVD / NIST