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DEBIAN-CVE-2026-31679

DEBIAN-CVE-2026-31679 PUBLISHED CVSS 7.099999904632568 HIGH

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.

Risk Scores

CVSS v3.1
7.099999904632568
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H

Affected Products

VendorProductVersions
Linuxlinux
Debian:14linux6.17.2-1, 6.12.41-1, 6.12.48-1
Debian:12linux6.1.153-1, 6.1.159-1, 6.1.162-1
Debian:13linux0, 6.12.38-1, 6.12.41-1
Debian:11linux-6.16.1.148-1, 6.1.153-1, 6.1.158-1
Debian:11linux6.1.158-1, 6.1.159-1, 6.1.162-1

Timeline

  • Apr 25, 2026 CVE Published
  • May 2, 2026 CVE Updated
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