CVE-2026-43024

kernel: netfilter: nf_tables: reject immediate NF_QUEUE verdict

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Severity

Moderate

Red Hat Product Security

5.5

CVSS 3.1

Review impact separately from score.

Published · May 1, 2026

Updated · June 28, 2026

Description

A flaw was found in the Linux kernel's netfilter nf_tables component. This vulnerability arises from the system allowing immediate NF_QUEUE verdicts, which are not intended for use by userspace nft tools. This could lead to unexpected behavior or a bypass of intended network filtering rules, potentially impacting system stability or security policies.

CVSS score applicability

The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.

Mitigation

No mitigation is specified in collected source.

CVSS / CWE

CVSS 3.1 · 5.5
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

CWE-115 · Misinterpretation of Input