What is CVE-2021-34079?

CVE-2021-34079 is a critical-severity vulnerability in Docker-Tester Project, classified under OS Command Injection. CVSS score: 9.8/10. Published 2022-06-02.

How severe is CVE-2021-34079?

Critical severity. CVSS v3 base score is 9.8 out of 10.

RCE in Docker-Tester Project

CVE-2021-34079

OS Command injection vulnerability in Mintzo Docker-Tester through 1.2.1 allows attackers to execute arbitrary commands via shell metacharacters in the 'ports' entry of a crafted docker-compose.yml file.

Vulnerability class: Command Injection (OS Command Injection)

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

CVSS v3 metric

CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.044 (91.0th percentile), scored 2026-10-07.

Low probability of exploitation in the next 30 days, but still tracked. 91st percentile — 91.0% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.044 · newest: 0.044 · change: 0.000

Affected products

Docker-Tester Project

Weakness classification (CWE)

CWE-78 — OS Command Injection

References

advisory.checkmarx.net/advisory/CX-2021-4786 (Exploit, Third Party Advisory)
www.npmjs.com/package/docker-tester (Product, Third Party Advisory)

Frequently asked questions

What is CVE-2021-34079?: CVE-2021-34079 is a critical-severity vulnerability in Docker-Tester Project, classified under OS Command Injection. CVSS score: 9.8/10. Published 2022-06-02.
How severe is CVE-2021-34079?: Critical severity. CVSS v3 base score is 9.8 out of 10.