CVE-2026-82278

HIGHPre-NVD 8.88.8—
EchelonGraph scoreHIGH confidence

Score 8.8 from GitHub Security Advisory (severity: HIGH) published 2026-08-28. a secondary CVSS source baseline 8.8; sources differ by 0.0.

Triggered by: GitHub Security Advisory CVSS
Sources: ghsa, secondary
Trending — 4 sources updated this weekElevated
8.8EG
EchelonGraph verdictPlan a fixSerious severity, but no confirmed exploitation yet.
  • High severity, but no confirmed exploitation yet
CISA-KEV: Not listedEPSS PROB: 1%CVSS: 8.8Exploit: Elevated riskExposed: 0

No vendor fix yet — apply a workaround or compensating control (WAF / firewall / segmentation) and watch for a patch.

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 v3
8.8
EG Score
8.8(high)
EG Risk
56(Track*)
EG Risk 56/100SSVC: Track*

EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).

How it’s computed
Severity88% × 45%
Exploitation40% × 40%
Automatability0% × 15%
Action: Watch closely — could escalate to Attend.
EPSS PROB
1%
EPSS %ILE
44%
KEV
Not listed

Published

August 28, 2026

Last Modified

August 28, 2026

Advisory Details (4)

Auto-updated Aug 28, 2026
No patch confirmed yet.
generic

BISHENG Authenticated Arbitrary Python Code Execution via Workflow run_once | Advisories | VulnCheck

https://www.vulncheck.com/advisories/bisheng-authenticated-arbitrary-python-code-execution-via-workflow-run-once
generic

bisheng/src/backend/bisheng/api/services/workflow.py at v2.4.0 · dataelement/bisheng · GitHub

https://github.com/dataelement/bisheng/blob/v2.4.0/src/backend/bisheng/api/services/workflow.py
generic

GitHub - dataelement/bisheng: BISHENG is an open LLM devops platform for next generation Enterprise AI applications. Powerful and comprehensive features include: GenAI workflow, RAG, Agent, Unified model management, Evaluation, SFT, Dataset Management, Enterprise-level System Management, Observability and more. · GitHub

https://github.com/dataelement/bisheng
generic

Authenticated RCE via run_once endpoint -- missing ownership check on workflow and no code sandboxing · Issue #2189 · dataelement/bisheng · GitHub

https://github.com/dataelement/bisheng/issues/2189

Vendor Advisories for CVE-2026-82278(1)

These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

Data Freshness Timeline

(refreshed 10× in last 7d / 10× in last 30d)

Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.

  1. 2026-08-30 01:22 UTCEPSS rescore
  2. 2026-08-30 00:38 UTCGHSA enrichment
  3. 2026-08-29 11:43 UTCGHSA enrichment
  4. 2026-08-28 22:48 UTCEG score recompute
  5. 2026-08-28 22:48 UTCGHSA enrichment
  6. 2026-08-28 22:09 UTCEG score recompute
  7. 2026-08-28 22:09 UTCGHSA enrichment
  8. 2026-08-28 20:26 UTCEG score recompute
  9. 2026-08-28 19:40 UTCEG score recompute
  10. 2026-08-28 19:36 UTCMITRE cvelistV5first tracked

Related CVEs(same CWE)

Frequently asked(5)

What is CVE-2026-82278?
CVE-2026-82278 is a high vulnerability published on August 28, 2026. BISHENG before 2.6.0 contains a remote code execution vulnerability in the workflow runonce endpoint that allows authenticated users to execute arbitrary Python code. Attackers can submit crafted Code node definitions to the POST /api/v1/workflow/runonce endpoint, which executes them with exec()…
When was CVE-2026-82278 disclosed?
CVE-2026-82278 was first published in the National Vulnerability Database on August 28, 2026. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.
Is CVE-2026-82278 actively exploited?
CVE-2026-82278 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 1% probability of exploitation in the next 30 days, which ranks it in the top 56.0% of all scored CVEs.
What is the CVSS score of CVE-2026-82278?
CVE-2026-82278 has a CVSS v3 base score of 8.8 (NVD).
How do I remediate CVE-2026-82278?
Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2026-82278, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

Dependency Blast Radius

Explore the affected products and dependency analysis for CVE-2026-82278

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