{"id":"CVE-2026-82278","title":"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","summary":"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/v…","severity":"high","cvss":8.8,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","cwe":["CWE-94"],"published":"2026-08-28","updated":"2026-09-23","sourceUpdated":"2026-09-23T17:17:46.023","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-82278","references":[{"url":"https://github.com/dataelement/bisheng","label":"disclosure@vulncheck.com"},{"url":"https://github.com/dataelement/bisheng/blob/v2.4.0/src/backend/bisheng/api/services/workflow.py","label":"disclosure@vulncheck.com"},{"url":"https://github.com/dataelement/bisheng/issues/2189","label":"disclosure@vulncheck.com"},{"url":"https://www.vulncheck.com/advisories/bisheng-authenticated-arbitrary-python-code-execution-via-workflow-run-once","label":"disclosure@vulncheck.com"},{"url":"https://github.com/dataelement/bisheng/issues/2189","label":"134c704f-9b21-4f2e-91b3-4a467353bcc0"}],"tags":["nvd"],"epss":0.00557,"epssPercentile":0.45311,"ingestedAt":"2026-09-23T17:28:14.814Z","slug":"CVE-2026-82278","body":"## Overview\n\nBISHENG 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.\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"twilight","depthScore":49,"depthScoreParts":{"impact":48.4,"likelihood":0.1,"exploitation":0,"ransomware":0},"changes":[]}