CVE-2026-31431

In the Linux kernel, the following vulnerability has been resolved: crypto: algif_aead - Revert to operating out-of-place This mostly reverts commit 72548b093ee3 except for the copying of the associated data. There is no benefit in operating in-place in algif_aead since the source and destination come from different mappings. Get rid of all the complexity added for in-place operation and just copy the AD directly. It has a CVSS v3.1 base score of 7.8 (HIGH). This vulnerability is listed in CISA's Known Exploited Vulnerabilities catalog, indicating active exploitation in the wild.

CVE-2026-31431 has a CVSS v3.1 score of 7.8 out of 10, rated HIGH. This is a high-severity vulnerability that should be prioritized for patching. The EPSS score is 0.0257, placing it in the 1th percentile for exploitation probability.

CVE-2026-31431 affects products from amazon, arista, canonical, debian, linux, nixos, opensuse, redhat, siemens, suse, vmware, specifically: amazon_linux, basesystem_module, caas_platform, cloudvision_agni, cloudvision_portal, debian_linux, development_tools_module, enterprise_linux, enterprise_storage, leap, legacy_module, linux_enterprise_desktop, linux_enterprise_high_availability_extension, linux_enterprise_high_performance_computing, linux_enterprise_live_patching, linux_enterprise_micro, linux_enterprise_real_time, linux_enterprise_server, linux_enterprise_workstation_extension, linux_kernel, linux_micro, manager_proxy, manager_retail_branch_server, manager_server, netvisor_os, nixos, openshift_container_platform, openstack_cloud, openstack_cloud_crowbar, public_cloud_module, realtime_module, simatic_s7-1500_cpu_1518-4_pn\/dp_mfp, simatic_s7-1500_cpu_1518-4_pn\/dp_mfp_firmware, simatic_s7-1500_cpu_1518f-4_pn\/dp_mfp, simatic_s7-1500_cpu_1518f-4_pn\/dp_mfp_firmware, simatic_s7-1500_tm_mfp, simatic_s7-1500_tm_mfp_firmware, siplus_s7-1500_cpu_1518-4_pn\/dp_mfp, siplus_s7-1500_cpu_1518-4_pn\/dp_mfp_firmware, ubuntu_linux, velocloud_edge, velocloud_gateway, velocloud_orchestrator. Check the affected products table above for specific version ranges.

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.