TI-2026-56750 Aliases CVE-2026-82285 GHSA-qch5-28r4-f5gj

BISHENG Unauthenticated Server-Side Request Forgery via Workflow Report Callback

HIGH 77CWE-918Published 2026-08-28 · Updated 2026-09-24

Key facts

Attack vector: Network
Privileges required: None
User interaction: None
Attack complexity: Low
Attack requirements: None
Impact type: —
Confidentiality · integrity · availability: High · Low · None
Fix status: No fix listed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA.

Summary

bisheng through 2.6.0-fix2 contains a server-side request forgery vulnerability in the POST /api/v1/workflow/report/callback endpoint that lacks authentication and applies no URL scheme restrictions or host filtering. Unauthenticated attackers can supply arbitrary URLs to enumerate internal network services and cloud metadata endpoints, then retrieve captured responses from object storage using caller-supplied object names.

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV

EPSS 0.00544 45th percentileScored 2026-11-07

Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation: Poc
Automatable: Yes
Technical impact: Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

Vendor	Product	Affected versions	Fixed in	Status	Source
dataelement	bisheng	up to 2.6.0-fix2	—	No fix listed	CNA

bisheng Vendordataelement Affected up to 2.6.0-fix2 Fixed in — No fix listed CNA

Remediation

No fixed version listed by the sources yet.

Timeline

2026-10-02 Threatist record created from CVE-2026-82285
2026-10-03 Alias added: GHSA-qch5-28r4-f5gj

References

Other 3

TI-2026-56743 BISHENG Authenticated Arbitrary Python Code Execution via Workflow run_once CVSS 4.0HIGH 8.7
TI-2026-75093 Insecure direct object reference in BISHENG exposes parsed documents CVSS 4.0HIGH 7.1

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences