CVE-2026-82278CWE-94code-injection

CVE-2026-82278

High · published August 29, 2026

CVSS v3.1
8.8
EPSS
1%
Percentile
54.1
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v3.1
8.8 · HIGH
Vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
CVSS v4.0
8.7 · 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
EPSS
0.00739 · 54.1th percentile
Weakness
CWE-94 · Improper Control of Generation of Code ('Code Injection')
Published
2026-08-29T00:20Z
References (5)
https://github.com/dataelement/bisheng · [email protected]https://github.com/dataelement/bisheng/blob/v2.4.0/src/backend/bisheng/api/services/workflow.py · [email protected]https://github.com/dataelement/bisheng/issues/2189 · [email protected]https://www.vulncheck.com/advisories/bisheng-authenticated-arbitrary-python-code-execution-via-workflow-run-once · [email protected]https://github.com/dataelement/bisheng/issues/2189 · 134c704f-9b21-4f2e-91b3-4a467353bcc0
EPSS history
Timeline
  • 30 AUG 16:19Z
    EPSS moved — → 1%
    epss
  • 28 AUG 16:18Z
    BISHENG Authenticated Arbitrary Python Code Execution via Workflow run_once
    cvelistv5