{"id":"CVE-2026-82278","summary":"BISHENG Authenticated Arbitrary Python Code Execution via Workflow run_once","details":"BISHENG before 2.6.0 contains a remote code execution vulnerability in the workflow run_once endpoint that allows authenticated users to execute arbitrary Python code. Attackers can submit crafted Code node definitions to the POST /api/v1/workflow/run_once endpoint, which executes them with exec() without sandboxing, gaining access to filesystem, credentials, and internal network resources.","modified":"2026-08-30T03:48:23.557351158Z","published":"2026-08-28T16:18:58.973Z","database_specific":{"cna_assigner":"VulnCheck","cwe_ids":["CWE-94"],"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/82xxx/CVE-2026-82278.json"},"references":[{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/82xxx/CVE-2026-82278.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-82278"},{"type":"ADVISORY","url":"https://www.vulncheck.com/advisories/bisheng-authenticated-arbitrary-python-code-execution-via-workflow-run-once"},{"type":"REPORT","url":"https://github.com/dataelement/bisheng/issues/2189"},{"type":"PACKAGE","url":"https://github.com/dataelement/bisheng"},{"type":"ARTICLE","url":"https://github.com/dataelement/bisheng/blob/v2.4.0/src/backend/bisheng/api/services/workflow.py"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/dataelement/bisheng","events":[{"introduced":"0"},{"fixed":"a3788115d71f4b5888a34fbe7e1f0f3f9f13784c"}],"database_specific":{"source":["AFFECTED_FIELD","DESCRIPTION"],"extracted_events":[{"introduced":"0"},{"fixed":"2.6.0"}]}}],"versions":["v2.4.0-beta1-fix","v2.4.0-beta1","v2.3.0","v2.3.0-beta3","v2.3.0-beta2","v2.3.0-beta1","v2.2.0","v2.2.0-beta3","v2.2.0-beta2","v2.1.1","v2.2.0-beta1","v2.1.0","v2.0.3","v2.0.2","v2.0.1","v2.0.0","v1.3.1","v1.3.0","v1.2.1","v1.2.0","v1.0.1","v1.1.1","v1.1.0","v1.0.0","v0.4.1.2","v0.4.1.1","v0.4.1","v0.4.0.dev2","v0.4.0.dev1","v0.3.7.1","v0.3.7","v0.3.7.dev2","v0.3.7.dev1","v0.3.6.dev1","v0.3.5.dev1","v0.3.4","v0.3.4.dev3","v0.3.4.dev2","v0.3.4.dev1","v0.3.3.dev2","v0.3.3.dev1","v0.3.3beta","v0.3.3rc1","v0.3.2.2","v0.3.2.1","v0.3.2","v0.3.1.2","v0.3.1.1","v0.3.1","v0.3.0rc1","v0.3.0rc0","v0.3.0beta","v0.2.3.2","v0.2.3","v0.2.2.6","v0.2.2.5","v0.2.2.4","v0.2.2.3","v0.2.2.2","v0.2.2.1","v0.2.2","v0.2.1.2","v0.2.1","v0.2.0_rc1","v0.2.0","v0.1.10.1","v0.1.10","v0.1.9.5","v0.1.9.4","v0.1.9.3","v0.1.9.2","v0.1.9.1","v0.1.9","v0.1.8","v0.1.7","v0.1.6","v0.1.5","v0.1.4","v0.1.3","v0.1.2","v0.1.1"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-82278.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V4","score":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N"}]}