What is CVE-2018-1999047?

CVE-2018-1999047 is a medium-severity vulnerability in Jenkins, classified under Incorrect Authorization. CVSS score: 6.5/10. Published 2018-08-23.

How severe is CVE-2018-1999047?

Medium severity. CVSS v3 base score is 6.5 out of 10.

Auth bypass in Jenkins

CVE-2018-1999047

A improper authorization vulnerability exists in Jenkins 2.137 and earlier, 2.121.2 and earlier in UpdateCenter.java that allows attackers to cancel a Jenkins restart scheduled through the update center.

Vulnerability class: Broken Access Control

Published 2018-08-23 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 6.5 (Medium). Vector: CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N.

EPSS exploit prediction

EPSS: 0.008 (54.0th percentile), scored 2026-10-01.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 54th percentile — 54.0% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.008 · newest: 0.008 · change: 0.000

Affected products

Jenkins

Weakness classification (CWE)

CWE-863 — Incorrect Authorization

References

jenkins.io/security/advisory/2018-08-15/ (Vendor Advisory)

Frequently asked questions

What is CVE-2018-1999047?: CVE-2018-1999047 is a medium-severity vulnerability in Jenkins, classified under Incorrect Authorization. CVSS score: 6.5/10. Published 2018-08-23.
How severe is CVE-2018-1999047?: Medium severity. CVSS v3 base score is 6.5 out of 10.