{"id":"CVE-2026-106440","revision":"df9f117592ad4f77b80e774afd590a8f","records":[{"revision":"df9f117592ad4f77b80e774afd590a8f","observedAt":"2026-10-23T15:48:27.903+00:00","statement":{"source":"cve-program","id":"CVE-2026-106440","aliases":[],"title":"Hydra: Optuna custom_search_space can resolve and execute untrusted callables via get_method","description":"Hydra is a framework for elegantly configuring complex applications. From 1.2.0 until 1.3.0 and 1.4.0.dev10, the hydra-optuna-sweeper package accepts a configuration-controlled dotted path in hydra.sweeper.custom_search_space, resolves it with hydra.utils.get_method(), and later invokes the returned callable in the Hydra controller process. Because get_method() is a trusted-input lookup helper and does not apply the execution policy used by instantiate(), an attacker who controls Optuna sweep configuration or command-line overrides can select importable Python code for execution with the application's privileges, including bypassing a trusted execution whitelist on affected Hydra 1.4 development releases. This issue is fixed in versions 1.3.0 and 1.4.0.dev10.","state":0,"publishedAt":"2026-10-06T18:51:37.549+00:00","modifiedAt":"2026-10-09T01:39:38.611+00:00","affected":[{"ecosystem":"Vendor product","name":"hydra","ranges":[],"versions":[],"rawVersionEvidence":"{\n                    \"vendor\": \"hydra-ecosystem\",\n                    \"product\": \"hydra\",\n                    \"versions\": [\n                        {\n                            \"version\": \">= 1.2.0, < 1.3.0\",\n                            \"status\": \"affected\"\n                        },\n                        {\n                            \"version\": \">= 1.4.0.dev4, < 1.4.0.dev10\",\n                            \"status\": \"affected\"\n                        }\n                    ]\n                }"}],"metrics":[{"system":"CVSS 3.1","vector":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H","score":7.8,"severity":"HIGH"}],"references":["https://github.com/hydra-ecosystem/hydra/security/advisories/GHSA-5jjj-9xc3-rm56","https://github.com/hydra-ecosystem/hydra/commit/0dd18084589a3d3e577d1f1a8a48fb485c94a5e6","https://github.com/hydra-ecosystem/hydra/commit/4720dfca2bde27fa140ec287a05709668fbdf168","https://github.com/hydra-ecosystem/hydra/releases/tag/v1.3.7"],"sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-106440","license":"CVE Program Terms of Use","key":"cve-program:CVE-2026-106440","identifiers":["CVE-2026-106440"]},"retained":false,"historicalAffected":[]}],"coverage":[]}