Vulnerability in Jenkins

CVE-2018-1999043

A denial of service vulnerability exists in Jenkins 2.137 and earlier, 2.121.2 and earlier in BasicAuthenticationFilter.java, BasicHeaderApiTokenAuthenticator.java that allows attackers to create ephemeral in-memory user records by attempting to log in using invalid credentials.

EPSS: 0.017 (74.5th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 7.5 (High). Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H.

Affected products

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2018-1999043?
CVE-2018-1999043 is a high-severity vulnerability in Jenkins, classified under Missing Release of Resource after Effective Lifetime. CVSS score: 7.5/10. Published 2018-08-23.
How severe is CVE-2018-1999043?
High severity. CVSS v3 base score is 7.5 out of 10.