CVE-2026-31679
openvswitch: validate MPLS set/set_masked payload length
CVE-2026-31679 is fixed in 108 products on 1 platform, first by ALAS2023-2026-1681, released May 11, 2026. It is not reported as exploited. Patch Radar priority: High.
High
CVSS
7.1
Moderate
Exploitation
None reported
No vendor assessment
CISA KEV
Not listed
Not in the Known Exploited Vulnerabilities catalog
EPSS
0.0016
5th percentile
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.
Where it's fixed
| Product | Fixed in | Fix | Released |
|---|---|---|---|
| Linux | |||
| bpftool · amzn 2023 | 1:6.1.168-202.320.amzn2023 | ALAS2023-2026-1681 | May 11, 2026 |
| bpftool-debuginfo · amzn 2023 | 1:6.1.168-202.320.amzn2023 | ALAS2023-2026-1681 | May 11, 2026 |
| bpftool6.12 · amzn 2023 | 1:6.12.80-105.147.amzn2023 | ALAS2023-2026-1646 | May 11, 2026 |
| bpftool6.12-debuginfo · amzn 2023 | 1:6.12.80-105.147.amzn2023 | ALAS2023-2026-1646 | May 11, 2026 |
| bpftool6.18 · amzn 2023 | 1:6.18.25-52.107.amzn2023 | ALAS2023-2026-1746 | May 25, 2026 |
| bpftool6.18-debuginfo · amzn 2023 | 1:6.18.25-52.107.amzn2023 | ALAS2023-2026-1746 | May 25, 2026 |
| kernel · amzn 2023 | 1:6.1.168-202.320.amzn2023 | ALAS2023-2026-1681 | May 11, 2026 |
| kernel-64kb · sles 15.7 | 6.4.0-150700.53.55.1 | SUSE-SU-2026:2238-1 | Jun 30, 2026 |
| kernel-azure · sles 15.7 | 6.4.0-150700.53.55.1 | SUSE-SU-2026:2238-1 | Jun 30, 2026 |
| kernel-debuginfo · amzn 2023 | 1:6.1.168-202.320.amzn2023 | ALAS2023-2026-1681 | May 11, 2026 |
| kernel-debuginfo-common-aarch64 · amzn 2023 | 1:6.1.168-202.320.amzn2023 | ALAS2023-2026-1681 | May 11, 2026 |
| kernel-debuginfo-common-x86_64 · amzn 2023 | 1:6.1.168-202.320.amzn2023 | ALAS2023-2026-1681 | May 11, 2026 |
| kernel-default · sles 15.7 | 6.4.0-150700.53.55.1 | SUSE-SU-2026:2238-1 | Jun 30, 2026 |
| kernel-default-base · sles 15.7 | 6.4.0-150700.53.55.1.150700.17.33.1 | SUSE-SU-2026:2238-1 | Jun 30, 2026 |
| kernel-devel · amzn 2023 | 1:6.1.168-202.320.amzn2023 | ALAS2023-2026-1681 | May 11, 2026 |
| kernel-docs · sles 15.7 | 6.4.0-150700.53.55.1 | SUSE-SU-2026:2238-1 | Jun 30, 2026 |
| kernel-headers · amzn 2023 | 1:6.1.168-202.320.amzn2023 | ALAS2023-2026-1681 | May 11, 2026 |
| kernel-libbpf · amzn 2023 | 1:6.1.168-202.320.amzn2023 | ALAS2023-2026-1681 | May 11, 2026 |
| kernel-libbpf-debuginfo · amzn 2023 | 1:6.1.168-202.320.amzn2023 | ALAS2023-2026-1681 | May 11, 2026 |
| kernel-libbpf-devel · amzn 2023 | 1:6.1.168-202.320.amzn2023 | ALAS2023-2026-1681 | May 11, 2026 |
| kernel-libbpf-static · amzn 2023 | 1:6.1.168-202.320.amzn2023 | ALAS2023-2026-1681 | May 11, 2026 |
| kernel-livepatch-6.1.168-202.320 · amzn 2023 | 1:1.0-0.amzn2023 | ALAS2023-2026-1681 | May 11, 2026 |
| kernel-livepatch-6.12.80-105.147 · amzn 2023 | 1:1.0-0.amzn2023 | ALAS2023-2026-1646 | May 11, 2026 |
| kernel-livepatch-6.18.25-52.107 · amzn 2023 | 1:1.0-0.amzn2023 | ALAS2023-2026-1746 | May 25, 2026 |
| kernel-livepatch-SLE15-SP7_Update_15 · sles 15.7 | 1-150700.15.3.1 | SUSE-SU-2026:2238-1 | Jun 30, 2026 |
| kernel-modules-extra · amzn 2023 | 1:6.1.168-202.320.amzn2023 | ALAS2023-2026-1681 | May 11, 2026 |
| kernel-modules-extra-common · amzn 2023 | 1:6.1.168-202.320.amzn2023 | ALAS2023-2026-1681 | May 11, 2026 |
| kernel-obs-build · sles 15.7 | 6.4.0-150700.53.55.1 | SUSE-SU-2026:2238-1 | Jun 30, 2026 |
| kernel-source · sles 15.7 | 6.4.0-150700.53.55.1 | SUSE-SU-2026:2238-1 | Jun 30, 2026 |
| kernel-syms · sles 15.7 | 6.4.0-150700.53.55.1 | SUSE-SU-2026:2238-1 | Jun 30, 2026 |
| kernel-tools · amzn 2023 | 1:6.1.168-202.320.amzn2023 | ALAS2023-2026-1681 | May 11, 2026 |
| kernel-tools-debuginfo · amzn 2023 | 1:6.1.168-202.320.amzn2023 | ALAS2023-2026-1681 | May 11, 2026 |
| kernel-tools-devel · amzn 2023 | 1:6.1.168-202.320.amzn2023 | ALAS2023-2026-1681 | May 11, 2026 |
| kernel-uek · ol 10 | 0:6.12.0-204.92.4.2.el9uek | ELSA-2026-50372 | Jul 2, 2026 |
| kernel-uek · ol 9 | 0:6.12.0-204.92.4.2.el9uek | ELSA-2026-50372 | Jul 2, 2026 |
| kernel-uek-core · ol 10 | 0:6.12.0-204.92.4.2.el9uek | ELSA-2026-50372 | Jul 2, 2026 |
| kernel-uek-core · ol 9 | 0:6.12.0-204.92.4.2.el9uek | ELSA-2026-50372 | Jul 2, 2026 |
| kernel-uek-debug · ol 10 | 0:6.12.0-204.92.4.2.el9uek | ELSA-2026-50372 | Jul 2, 2026 |
| kernel-uek-debug · ol 9 | 0:6.12.0-204.92.4.2.el9uek | ELSA-2026-50372 | Jul 2, 2026 |
| kernel-uek-debug-core · ol 10 | 0:6.12.0-204.92.4.2.el9uek | ELSA-2026-50372 | Jul 2, 2026 |
| kernel-uek-debug-core · ol 9 | 0:6.12.0-204.92.4.2.el9uek | ELSA-2026-50372 | Jul 2, 2026 |
| kernel-uek-debug-devel · ol 10 | 0:6.12.0-204.92.4.2.el9uek | ELSA-2026-50372 | Jul 2, 2026 |
| kernel-uek-debug-devel · ol 9 | 0:6.12.0-204.92.4.2.el9uek | ELSA-2026-50372 | Jul 2, 2026 |
| kernel-uek-debug-modules · ol 10 | 0:6.12.0-204.92.4.2.el9uek | ELSA-2026-50372 | Jul 2, 2026 |
| kernel-uek-debug-modules · ol 9 | 0:6.12.0-204.92.4.2.el9uek | ELSA-2026-50372 | Jul 2, 2026 |
| kernel-uek-debug-modules-core · ol 10 | 0:6.12.0-204.92.4.2.el9uek | ELSA-2026-50372 | Jul 2, 2026 |
| kernel-uek-debug-modules-core · ol 9 | 0:6.12.0-204.92.4.2.el9uek | ELSA-2026-50372 | Jul 2, 2026 |
| kernel-uek-debug-modules-deprecated · ol 10 | 0:6.12.0-204.92.4.2.el9uek | ELSA-2026-50372 | Jul 2, 2026 |
| kernel-uek-debug-modules-deprecated · ol 9 | 0:6.12.0-204.92.4.2.el9uek | ELSA-2026-50372 | Jul 2, 2026 |
| kernel-uek-debug-modules-desktop · ol 10 | 0:6.12.0-204.92.4.2.el9uek | ELSA-2026-50372 | Jul 2, 2026 |
| kernel-uek-debug-modules-desktop · ol 9 | 0:6.12.0-204.92.4.2.el9uek | ELSA-2026-50372 | Jul 2, 2026 |
| kernel-uek-debug-modules-extra · ol 10 | 0:6.12.0-204.92.4.2.el9uek | ELSA-2026-50372 | Jul 2, 2026 |
| kernel-uek-debug-modules-extra · ol 9 | 0:6.12.0-204.92.4.2.el9uek | ELSA-2026-50372 | Jul 2, 2026 |
| kernel-uek-debug-modules-extra-netfilter · ol 10 | 0:6.12.0-204.92.4.2.el9uek | ELSA-2026-50372 | Jul 2, 2026 |
| kernel-uek-debug-modules-extra-netfilter · ol 9 | 0:6.12.0-204.92.4.2.el9uek | ELSA-2026-50372 | Jul 2, 2026 |
| kernel-uek-debug-modules-usb · ol 10 | 0:6.12.0-204.92.4.2.el9uek | ELSA-2026-50372 | Jul 2, 2026 |
| kernel-uek-debug-modules-usb · ol 9 | 0:6.12.0-204.92.4.2.el9uek | ELSA-2026-50372 | Jul 2, 2026 |
| kernel-uek-debug-modules-wireless · ol 10 | 0:6.12.0-204.92.4.2.el9uek | ELSA-2026-50372 | Jul 2, 2026 |
| kernel-uek-debug-modules-wireless · ol 9 | 0:6.12.0-204.92.4.2.el9uek | ELSA-2026-50372 | Jul 2, 2026 |
| kernel-uek-devel · ol 10 | 0:6.12.0-204.92.4.2.el9uek | ELSA-2026-50372 | Jul 2, 2026 |
| kernel-uek-devel · ol 9 | 0:6.12.0-204.92.4.2.el9uek | ELSA-2026-50372 | Jul 2, 2026 |
| kernel-uek-doc · ol 10 | 0:6.12.0-204.92.4.2.el9uek | ELSA-2026-50372 | Jul 2, 2026 |
| kernel-uek-doc · ol 9 | 0:6.12.0-204.92.4.2.el9uek | ELSA-2026-50372 | Jul 2, 2026 |
| kernel-uek-modules · ol 10 | 0:6.12.0-204.92.4.2.el9uek | ELSA-2026-50372 | Jul 2, 2026 |
| kernel-uek-modules · ol 9 | 0:6.12.0-204.92.4.2.el9uek | ELSA-2026-50372 | Jul 2, 2026 |
| kernel-uek-modules-core · ol 10 | 0:6.12.0-204.92.4.2.el9uek | ELSA-2026-50372 | Jul 2, 2026 |
| kernel-uek-modules-core · ol 9 | 0:6.12.0-204.92.4.2.el9uek | ELSA-2026-50372 | Jul 2, 2026 |
| kernel-uek-modules-deprecated · ol 10 | 0:6.12.0-204.92.4.2.el9uek | ELSA-2026-50372 | Jul 2, 2026 |
| kernel-uek-modules-deprecated · ol 9 | 0:6.12.0-204.92.4.2.el9uek | ELSA-2026-50372 | Jul 2, 2026 |
| kernel-uek-modules-desktop · ol 10 | 0:6.12.0-204.92.4.2.el9uek | ELSA-2026-50372 | Jul 2, 2026 |
| kernel-uek-modules-desktop · ol 9 | 0:6.12.0-204.92.4.2.el9uek | ELSA-2026-50372 | Jul 2, 2026 |
| kernel-uek-modules-extra · ol 10 | 0:6.12.0-204.92.4.2.el9uek | ELSA-2026-50372 | Jul 2, 2026 |
| kernel-uek-modules-extra · ol 9 | 0:6.12.0-204.92.4.2.el9uek | ELSA-2026-50372 | Jul 2, 2026 |
| kernel-uek-modules-extra-netfilter · ol 10 | 0:6.12.0-204.92.4.2.el9uek | ELSA-2026-50372 | Jul 2, 2026 |
| kernel-uek-modules-extra-netfilter · ol 9 | 0:6.12.0-204.92.4.2.el9uek | ELSA-2026-50372 | Jul 2, 2026 |
| kernel-uek-modules-usb · ol 10 | 0:6.12.0-204.92.4.2.el9uek | ELSA-2026-50372 | Jul 2, 2026 |
| kernel-uek-modules-usb · ol 9 | 0:6.12.0-204.92.4.2.el9uek | ELSA-2026-50372 | Jul 2, 2026 |
| kernel-uek-modules-wireless · ol 10 | 0:6.12.0-204.92.4.2.el9uek | ELSA-2026-50372 | Jul 2, 2026 |
| kernel-uek-modules-wireless · ol 9 | 0:6.12.0-204.92.4.2.el9uek | ELSA-2026-50372 | Jul 2, 2026 |
| kernel-uek-tools · ol 10 | 0:6.12.0-204.92.4.2.el9uek | ELSA-2026-50372 | Jul 2, 2026 |
| kernel-uek-tools · ol 9 | 0:6.12.0-204.92.4.2.el9uek | ELSA-2026-50372 | Jul 2, 2026 |
| kernel-uek64k · ol 10 | 0:6.12.0-204.92.4.2.el9uek | ELSA-2026-50372 | Jul 2, 2026 |
| kernel-uek64k · ol 9 | 0:6.12.0-204.92.4.2.el9uek | ELSA-2026-50372 | Jul 2, 2026 |
| kernel-uek64k-core · ol 10 | 0:6.12.0-204.92.4.2.el9uek | ELSA-2026-50372 | Jul 2, 2026 |
| kernel-uek64k-core · ol 9 | 0:6.12.0-204.92.4.2.el9uek | ELSA-2026-50372 | Jul 2, 2026 |
| kernel-uek64k-devel · ol 10 | 0:6.12.0-204.92.4.2.el9uek | ELSA-2026-50372 | Jul 2, 2026 |
| kernel-uek64k-devel · ol 9 | 0:6.12.0-204.92.4.2.el9uek | ELSA-2026-50372 | Jul 2, 2026 |
| kernel-uek64k-modules · ol 10 | 0:6.12.0-204.92.4.2.el9uek | ELSA-2026-50372 | Jul 2, 2026 |
| kernel-uek64k-modules · ol 9 | 0:6.12.0-204.92.4.2.el9uek | ELSA-2026-50372 | Jul 2, 2026 |
| kernel-uek64k-modules-core · ol 10 | 0:6.12.0-204.92.4.2.el9uek | ELSA-2026-50372 | Jul 2, 2026 |
| kernel-uek64k-modules-core · ol 9 | 0:6.12.0-204.92.4.2.el9uek | ELSA-2026-50372 | Jul 2, 2026 |
| kernel-uek64k-modules-deprecated · ol 10 | 0:6.12.0-204.92.4.2.el9uek | ELSA-2026-50372 | Jul 2, 2026 |
| kernel-uek64k-modules-deprecated · ol 9 | 0:6.12.0-204.92.4.2.el9uek | ELSA-2026-50372 | Jul 2, 2026 |
| kernel-uek64k-modules-desktop · ol 10 | 0:6.12.0-204.92.4.2.el9uek | ELSA-2026-50372 | Jul 2, 2026 |
| kernel-uek64k-modules-desktop · ol 9 | 0:6.12.0-204.92.4.2.el9uek | ELSA-2026-50372 | Jul 2, 2026 |
| kernel-uek64k-modules-extra · ol 10 | 0:6.12.0-204.92.4.2.el9uek | ELSA-2026-50372 | Jul 2, 2026 |
| kernel-uek64k-modules-extra · ol 9 | 0:6.12.0-204.92.4.2.el9uek | ELSA-2026-50372 | Jul 2, 2026 |
| kernel-uek64k-modules-extra-netfilter · ol 10 | 0:6.12.0-204.92.4.2.el9uek | ELSA-2026-50372 | Jul 2, 2026 |
| kernel-uek64k-modules-extra-netfilter · ol 9 | 0:6.12.0-204.92.4.2.el9uek | ELSA-2026-50372 | Jul 2, 2026 |
| kernel-uek64k-modules-usb · ol 10 | 0:6.12.0-204.92.4.2.el9uek | ELSA-2026-50372 | Jul 2, 2026 |
| kernel-uek64k-modules-usb · ol 9 | 0:6.12.0-204.92.4.2.el9uek | ELSA-2026-50372 | Jul 2, 2026 |
| kernel-uek64k-modules-wireless · ol 10 | 0:6.12.0-204.92.4.2.el9uek | ELSA-2026-50372 | Jul 2, 2026 |
| kernel-uek64k-modules-wireless · ol 9 | 0:6.12.0-204.92.4.2.el9uek | ELSA-2026-50372 | Jul 2, 2026 |
| kernel-zfcpdump · sles 15.7 | 6.4.0-150700.53.55.1 | SUSE-SU-2026:2238-1 | Jun 30, 2026 |
| kernel6.12 · amzn 2023 | 1:6.12.80-105.147.amzn2023 | ALAS2023-2026-1646 | May 11, 2026 |
| kernel6.12-debuginfo · amzn 2023 | 1:6.12.80-105.147.amzn2023 | ALAS2023-2026-1646 | May 11, 2026 |
| kernel6.12-debuginfo-common-aarch64 · amzn 2023 | 1:6.12.80-105.147.amzn2023 | ALAS2023-2026-1646 | May 11, 2026 |
| kernel6.12-debuginfo-common-x86_64 · amzn 2023 | 1:6.12.80-105.147.amzn2023 | ALAS2023-2026-1646 | May 11, 2026 |
| kernel6.12-devel · amzn 2023 | 1:6.12.80-105.147.amzn2023 | ALAS2023-2026-1646 | May 11, 2026 |
| kernel6.12-headers · amzn 2023 | 1:6.12.80-105.147.amzn2023 | ALAS2023-2026-1646 | May 11, 2026 |
| kernel6.12-libbpf · amzn 2023 | 1:6.12.80-105.147.amzn2023 | ALAS2023-2026-1646 | May 11, 2026 |
| kernel6.12-libbpf-debuginfo · amzn 2023 | 1:6.12.80-105.147.amzn2023 | ALAS2023-2026-1646 | May 11, 2026 |
| kernel6.12-libbpf-devel · amzn 2023 | 1:6.12.80-105.147.amzn2023 | ALAS2023-2026-1646 | May 11, 2026 |
| kernel6.12-libbpf-static · amzn 2023 | 1:6.12.80-105.147.amzn2023 | ALAS2023-2026-1646 | May 11, 2026 |
| kernel6.12-modules-extra · amzn 2023 | 1:6.12.80-105.147.amzn2023 | ALAS2023-2026-1646 | May 11, 2026 |
| kernel6.12-modules-extra-common · amzn 2023 | 1:6.12.80-105.147.amzn2023 | ALAS2023-2026-1646 | May 11, 2026 |
| kernel6.12-tools · amzn 2023 | 1:6.12.80-105.147.amzn2023 | ALAS2023-2026-1646 | May 11, 2026 |
| kernel6.12-tools-debuginfo · amzn 2023 | 1:6.12.80-105.147.amzn2023 | ALAS2023-2026-1646 | May 11, 2026 |
| kernel6.12-tools-devel · amzn 2023 | 1:6.12.80-105.147.amzn2023 | ALAS2023-2026-1646 | May 11, 2026 |
| kernel6.18 · amzn 2023 | 1:6.18.25-52.107.amzn2023 | ALAS2023-2026-1746 | May 25, 2026 |
| kernel6.18-debuginfo · amzn 2023 | 1:6.18.25-52.107.amzn2023 | ALAS2023-2026-1746 | May 25, 2026 |
| kernel6.18-debuginfo-common-aarch64 · amzn 2023 | 1:6.18.25-52.107.amzn2023 | ALAS2023-2026-1746 | May 25, 2026 |
| kernel6.18-debuginfo-common-x86_64 · amzn 2023 | 1:6.18.25-52.107.amzn2023 | ALAS2023-2026-1746 | May 25, 2026 |
| kernel6.18-devel · amzn 2023 | 1:6.18.25-52.107.amzn2023 | ALAS2023-2026-1746 | May 25, 2026 |
| kernel6.18-headers · amzn 2023 | 1:6.18.25-52.107.amzn2023 | ALAS2023-2026-1746 | May 25, 2026 |
| kernel6.18-modules-extra · amzn 2023 | 1:6.18.25-52.107.amzn2023 | ALAS2023-2026-1746 | May 25, 2026 |
| kernel6.18-modules-extra-common · amzn 2023 | 1:6.18.25-52.107.amzn2023 | ALAS2023-2026-1746 | May 25, 2026 |
| kernel6.18-tools · amzn 2023 | 1:6.18.25-52.107.amzn2023 | ALAS2023-2026-1746 | May 25, 2026 |
| kernel6.18-tools-debuginfo · amzn 2023 | 1:6.18.25-52.107.amzn2023 | ALAS2023-2026-1746 | May 25, 2026 |
| kernel6.18-tools-devel · amzn 2023 | 1:6.18.25-52.107.amzn2023 | ALAS2023-2026-1746 | May 25, 2026 |
| linux · Debian 12.15 (bookworm) | 6.1.170-1 | DEBIAN-CVE-2026-31679 | May 15, 2026 |
| linux · Debian 13.5 (trixie) | 6.12.85-1 | DEBIAN-CVE-2026-31679 | May 15, 2026 |
| linux · Debian 14 | 6.19.11-1 | DEBIAN-CVE-2026-31679 | May 15, 2026 |
| perf · amzn 2023 | 1:6.1.168-202.320.amzn2023 | ALAS2023-2026-1681 | May 11, 2026 |
| perf-debuginfo · amzn 2023 | 1:6.1.168-202.320.amzn2023 | ALAS2023-2026-1681 | May 11, 2026 |
| perf6.12 · amzn 2023 | 1:6.12.80-105.147.amzn2023 | ALAS2023-2026-1646 | May 11, 2026 |
| perf6.12-debuginfo · amzn 2023 | 1:6.12.80-105.147.amzn2023 | ALAS2023-2026-1646 | May 11, 2026 |
| perf6.18 · amzn 2023 | 1:6.18.25-52.107.amzn2023 | ALAS2023-2026-1746 | May 25, 2026 |
| perf6.18-debuginfo · amzn 2023 | 1:6.18.25-52.107.amzn2023 | ALAS2023-2026-1746 | May 25, 2026 |
| python3-perf · amzn 2023 | 1:6.1.168-202.320.amzn2023 | ALAS2023-2026-1681 | May 11, 2026 |
| python3-perf-debuginfo · amzn 2023 | 1:6.1.168-202.320.amzn2023 | ALAS2023-2026-1681 | May 11, 2026 |
| python3-perf6.12 · amzn 2023 | 1:6.12.80-105.147.amzn2023 | ALAS2023-2026-1646 | May 11, 2026 |
| python3-perf6.12-debuginfo · amzn 2023 | 1:6.12.80-105.147.amzn2023 | ALAS2023-2026-1646 | May 11, 2026 |
| python3-perf6.18 · amzn 2023 | 1:6.18.25-52.107.amzn2023 | ALAS2023-2026-1746 | May 25, 2026 |
| python3-perf6.18-debuginfo · amzn 2023 | 1:6.18.25-52.107.amzn2023 | ALAS2023-2026-1746 | May 25, 2026 |
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