{"id":"CVE-2026-18948","title":"A flaw was found in Feast","summary":"A flaw was found in Feast. The system improperly deserializes user-defined functions (UDFs) stored in its registry, which are serialized using the 'dill' library. This allows a remote attacker to store a malicious UDF, leading to unauthe…","severity":"critical","cvss":9.9,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H","cwe":["CWE-502"],"vendor":"Red Hat","product":"rhoai/odh-feature-server-rhel9","affected":["rhoai/odh-feature-server-rhel9 (all versions)","rhoai/odh-feature-server-rhel9 (all versions)","rhoai/odh-feature-server-rhel9 (all versions)","rhoai/odh-feature-server-rhel9 (all versions)","rhoai/odh-pipeline-runtime-datascience-cpu-py312-rhel9","rhoai/odh-pipeline-runtime-pytorch-cuda-py312-rhel9","rhoai/odh-pipeline-runtime-pytorch-llmcompressor-cuda-py312-rhel9","rhoai/odh-pipeline-runtime-pytorch-rocm-py312-rhel9","rhoai/odh-pipeline-runtime-tensorflow-cuda-py312-rhel9","rhoai/odh-pipeline-runtime-tensorflow-rocm-py312-rhel9","rhoai/odh-workbench-codeserver-datascience-cpu-py312-rhel9","rhoai/odh-workbench-jupyter-datascience-cpu-py312-rhel9","rhoai/odh-workbench-jupyter-pytorch-cuda-py312-rhel9","rhoai/odh-workbench-jupyter-pytorch-llmcompressor-cuda-py312-rhel9","rhoai/odh-workbench-jupyter-pytorch-rocm-py312-rhel9","rhoai/odh-workbench-jupyter-tensorflow-cuda-py312-rhel9","rhoai/odh-workbench-jupyter-tensorflow-rocm-py312-rhel9"],"published":"2026-08-10","updated":"2026-09-28","sourceUpdated":"2026-09-28T10:16:44.017","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-18948","references":[{"url":"https://access.redhat.com/errata/RHSA-2026:53261","label":"secalert@redhat.com"},{"url":"https://access.redhat.com/errata/RHSA-2026:53262","label":"secalert@redhat.com"},{"url":"https://access.redhat.com/errata/RHSA-2026:53263","label":"secalert@redhat.com"},{"url":"https://access.redhat.com/errata/RHSA-2026:60520","label":"secalert@redhat.com"},{"url":"https://access.redhat.com/security/cve/CVE-2026-18948","label":"secalert@redhat.com"},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2511167","label":"secalert@redhat.com"}],"tags":["nvd","cve.org"],"ssvc":{"exploitation":"none","automatable":"no","technicalImpact":"total","timestamp":"2026-08-11T13:40:50.474434Z"},"epss":0.01079,"epssPercentile":0.63684,"ingestedAt":"2026-09-28T10:07:17.785Z","slug":"CVE-2026-18948","body":"## Overview\n\nA flaw was found in Feast. The system improperly deserializes user-defined functions (UDFs) stored in its registry, which are serialized using the 'dill' library. This allows a remote attacker to store a malicious UDF, leading to unauthenticated arbitrary code execution on the feature server in default configurations. An authenticated attacker can also achieve arbitrary code execution on the registry server by bypassing authorization checks during deserialization. This vulnerability can result in cross-tenant data access and lateral movement within the system.\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"midnight","depthScore":55,"depthScoreParts":{"impact":54.5,"likelihood":0.2,"exploitation":0,"ransomware":0},"changes":[]}