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Vulnerability record · CVE-2026-82278 · published 28 August 2026

CVE-2026-82278: Code injection vulnerability

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.

8.7 CVSS 4.0 High EPSS 0.74% · top 47.3% CWE-94 · Code injection Deferred
8.7CVSS 4.0 base score
0.74%EPSS exploitation probability, 30 days
NoNot in CISA KEV
0Affected product versions listed by NVD
5References
23 Sep 2026Last modified by NVD

Description

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.

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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:

References

LinkTags
https://github.com/dataelement/bisheng
https://github.com/dataelement/bisheng/blob/v2.4.0/src/backend/bisheng/api/services/workflow.py
https://github.com/dataelement/bisheng/issues/2189
https://www.vulncheck.com/advisories/bisheng-authenticated-arbitrary-python-code-execution-via-workflow-run-once
https://github.com/dataelement/bisheng/issues/2189

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Source: NIST National Vulnerability Database (record CVE-2026-82278), CISA KEV, FIRST EPSS (scores of 2026-09-27). This page is refreshed as NVD updates the record.