What is CVE-2020-2146?

CVE-2020-2146 is a high-severity vulnerability in Jenkins Mac, classified under Improper Verification of Cryptographic Signature. CVSS score: 7.4/10. Published 2020-03-09.

How severe is CVE-2020-2146?

High severity. CVSS v3 base score is 7.4 out of 10.

Vulnerability in Jenkins Mac

CVE-2020-2146

Jenkins Mac Plugin 1.1.0 and earlier does not validate SSH host keys when connecting agents created by the plugin, enabling man-in-the-middle attacks.

Published 2020-03-09 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 7.4 (High). Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N.

EPSS exploit prediction

EPSS: 0.006 (45.0th percentile), scored 2026-09-30.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 45th percentile — 45.0% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.006 · newest: 0.006 · change: 0.000

Affected products

Jenkins Mac
Jenkins Project Mac Plugin — versions unspecified

Weakness classification (CWE)

CWE-347 — Improper Verification of Cryptographic Signature

References

jenkins.io/security/advisory/2020-03-09/ (Vendor Advisory)
www.openwall.com/lists/oss-security/2020/03/09/1 (mailing-list, Third Party Advisory)

Frequently asked questions

What is CVE-2020-2146?: CVE-2020-2146 is a high-severity vulnerability in Jenkins Mac, classified under Improper Verification of Cryptographic Signature. CVSS score: 7.4/10. Published 2020-03-09.
How severe is CVE-2020-2146?: High severity. CVSS v3 base score is 7.4 out of 10.