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CVE-2026-31679 Detail

Description

In the Linux kernel, the following vulnerability has been resolved: openvswitch: validate MPLS set/set_masked payload length validate_set() accepted OVS_KEY_ATTR_MPLS as variable-sized payload for SET/SET_MASKED actions. In action handling, OVS expects fixed-size MPLS key data (struct ovs_key_mpls). Use the already normalized key_len (masked case included) and reject non-matching MPLS action key sizes. Reject invalid MPLS action payload lengths early.


Metrics

NVD enrichment efforts reference publicly available information to associate vector strings. CVSS information contributed by other sources is also displayed.
CVSS 4.0 Severity and Vector Strings:

NIST CVSS score
NIST: NVD
N/A
NVD assessment not yet provided.

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URL Source(s) Tag(s)
https://git.kernel.org/stable/c/2ca33b88a79ca42f017ae0f7011280325655438e kernel.org
https://git.kernel.org/stable/c/4cae986225f8b8679ad86b924918e7d75a96aa61 kernel.org
https://git.kernel.org/stable/c/546b68ac893595877ffbd7751e5c55fd1c43ede6 kernel.org
https://git.kernel.org/stable/c/68f32ef0683c8d1c05cd2e4f16818fa63ff59c6f kernel.org
https://git.kernel.org/stable/c/8ed7b9930cbc3bc71f868fa79a68700ac88d586a kernel.org
https://git.kernel.org/stable/c/98de18d327ef8cbbb704980e359e4872d8c28997 kernel.org
https://git.kernel.org/stable/c/bd50c7484c3bb34097571c1334174fb8b7408036 kernel.org
https://git.kernel.org/stable/c/c1f97152df8dfb17e855ddf0fc409b7bd13e9700 kernel.org

Weakness Enumeration

CWE-ID CWE Name Source

Change History

1 change records found show changes

Quick Info

CVE Dictionary Entry:
CVE-2026-31679
NVD Published Date:
04/25/2026
NVD Last Modified:
04/25/2026
Source:
kernel.org