SSRF in Dataelement Bisheng
CVE-2026-82285
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.
Vulnerability class: SSRF (Server-Side Request Forgery)
Published · last modified .
CVSS v3 metric
CVSS v3 base score 8.2 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:L/A:N.
EPSS exploit prediction
EPSS: 0.005 (44.1th percentile), scored .
Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 44th percentile — 44.1% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.003 · newest: 0.005 · change: +0.002
Affected products
Weakness classification (CWE)
References
- GitHub Issue #2190 (issue-tracking)
- github.com/dataelement/bisheng (product)
- Vulnerable code: workflow.py (technical-description)
- VulnCheck Advisory: BISHENG Unauthenticated Server-Side Request Forgery via Workflow Report Callback (third-party-advisory)
Frequently asked questions
- What is CVE-2026-82285?
- CVE-2026-82285 is a high-severity vulnerability in Dataelement Bisheng, classified under Server-Side Request Forgery (SSRF). CVSS score: 8.2/10. Published 2026-08-28.
- How severe is CVE-2026-82285?
- High severity. CVSS v3 base score is 8.2 out of 10.