BISHENG Authenticated Arbitrary Python Code Execution via Workflow run_once (CVE-2026-82278) | HOL Guard CVE

Unknown severity · Source severity not reportedCVE-2026-82278

BISHENG Authenticated Arbitrary Python Code Execution via Workflow run_once

Answer in brief

CVE-2026-82278 records a Unknown severity vulnerability in BISHENG Authenticated Arbitrary Python Code Execution via Workflow run_once. The current sources do not mark it as known exploited. The current feed maps dataelement/bisheng (generic). Check affected ranges and fixed versions before updating.

Analysis pending evidence review

HOL Guard separates source facts from reviewed analysis. See the methodology.

Published Aug 28, 2026Updated Aug 28, 2026Source checked Aug 28, 2026First seen by HOL Aug 28, 2026Material review Aug 28, 2026

Upstream Advisory

Key facts

Risk: Unknown severitySource severity not reported
Exploitation: Not marked as known exploited
Affected software: 1 mapped package or product
Fix availability: Available

Why this deserves its current priority

A CVSS score is not reported in the current record. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.

Analysis status

Analysis pending evidence review

Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.

Affected scope and exposure questions

The current feed maps dataelement/bisheng (generic). Check affected ranges and fixed versions before updating.

Mapped affected packages and fixed versions
Package	Affected range	Fixed version
dataelement/bishenggeneric	>=0 <2.6.0	2.6.0

Recommended response

Check inventory. Check lockfiles and deployed manifests for dataelement/bisheng.
Review the reported fix. Update dataelement/bisheng to 2.6.0 if you use the affected versions. Test the change in a non-production environment first.

Evidence timeline and material changes

Published upstream
Aug 28, 2026
Evidence: source:cvelist:source_dates:source-dates:record
Source modified
Aug 28, 2026
Evidence: source:cvelist:source_dates:source-dates:record
First seen by HOL
Aug 28, 2026

Sources and claim methodology

Upstream source 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.

Quoted source text, attributed separately from HOL analysis.