What is CVE-2020-2158?

CVE-2020-2158 is a high-severity vulnerability in Jenkins Literate, classified under Deserialization of Untrusted Data. CVSS score: 8.8/10. Published 2020-03-09.

How severe is CVE-2020-2158?

High severity. CVSS v3 base score is 8.8 out of 10.

Deserialization in Jenkins Literate

CVE-2020-2158

Jenkins Literate Plugin 1.0 and earlier does not configure its YAML parser to prevent the instantiation of arbitrary types, resulting in a remote code execution vulnerability.

Vulnerability class: Insecure Deserialization

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

CVSS v3 metric

CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.029 (86.3th percentile), scored 2026-09-30.

Low probability of exploitation in the next 30 days, but still tracked. 86th percentile — 86.3% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.029 · newest: 0.029 · change: 0.000

Affected products

Jenkins Literate
Jenkins Project Literate Plugin — versions unspecified, next of 1.0

Weakness classification (CWE)

CWE-502 — Deserialization of Untrusted Data

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-2020-2158?: CVE-2020-2158 is a high-severity vulnerability in Jenkins Literate, classified under Deserialization of Untrusted Data. CVSS score: 8.8/10. Published 2020-03-09.
How severe is CVE-2020-2158?: High severity. CVSS v3 base score is 8.8 out of 10.