CVE-2020-8128 — jsreport
CRITICALCVE-2020-8128 is a critical-severity (CVSS 9.8) CWE-829 vulnerability in jsreport. 1 public exploit or proof-of-concept reference is indexed, so weaponization risk is real. A fix is available for jsreport — see the affected versions and patch details below.
Server-Side Request Forgery and Inclusion of Functionality from Untrusted Control Sphere in jsreport
EPSS Exploitation Probability
Probability of exploitation in the next 30 days, from FIRST.org EPSS.
How urgent is this, really
Where this sits among everything scored
Real-World Exposure
How broadly this vulnerability is actually deployed: weekly install volume shows current usage, and reverse-dependency count shows how many other packages break if it stays unpatched.
jsreportnpmDescription
An unintended require and server-side request forgery vulnerabilities in jsreport version 2.5.0 and earlier allow attackers to execute arbitrary code.
Affected Packages
| Ecosystem | Package | Vulnerable range | Fix |
|---|---|---|---|
| 📦npm | jsreport | all versions | 2.6.0npm install jsreport@2.6.0 |
Affected Products
jsreportjsreportResearch use only. For defensive security, authorized penetration testing, and academic research only. Never execute exploit code against systems without explicit written authorization.
Detection & mitigation playbook
Open-source dependencyDetect
Scan your dependency tree (package-lock.json, pnpm-lock.yaml, requirements.txt, go.sum, etc.) for jsreport, including transitive dependencies — a direct dependency you never call can still pull in a vulnerable version.
Fix
Update jsreport to 2.6.0 or later, then make sure no transitive (indirect) dependency still pins the vulnerable range — O3 confirms CVE-2020-8128 is resolved across your whole dependency graph.
Workarounds
Restrict outbound requests from the affected component to an allowlist of hosts, block access to link-local and internal address ranges at the network layer, and require authentication on internal services so a forged request cannot reach them unauthenticated.
Frequently Asked Questions
Is CVE-2020-8128 in your dependencies?
Find it across npm, including transitive dependencies.