What is CVE-2020-28437?

CVE-2020-28437 is a critical-severity vulnerability in Heroku-Env Project, classified under Command Injection. CVSS score: 9.4/10. Published 2022-08-02.

How severe is CVE-2020-28437?

Critical severity. CVSS v3 base score is 9.4 out of 10.

RCE in Heroku-Env Project

CVE-2020-28437

This affects all versions of package heroku-env. The injection point is located in lib/get.js which is required by index.js.

Vulnerability class: Command Injection (OS Command Injection)

Published 2022-08-02 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 9.4 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:L.

EPSS exploit prediction

EPSS: 0.013 (69.2th percentile), scored 2026-10-02.

Low probability of exploitation in the next 30 days, but still tracked. 69th percentile — 69.2% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.013 · newest: 0.013 · change: +0.000

Affected products

Heroku-Env Project
Heroku-Env — versions 0

Weakness classification (CWE)

CWE-77 — Command Injection

References

security.snyk.io/vuln/SNYK-JS-HEROKUENV-1050432 (Exploit, Third Party Advisory)

Frequently asked questions

What is CVE-2020-28437?: CVE-2020-28437 is a critical-severity vulnerability in Heroku-Env Project, classified under Command Injection. CVSS score: 9.4/10. Published 2022-08-02.
How severe is CVE-2020-28437?: Critical severity. CVSS v3 base score is 9.4 out of 10.