CVE-2018-1000408

Severity: medium (CVSS 6.5 v3.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 1.5% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2019-01-09 · updated 2026-06-17

Description

A denial of service vulnerability exists in Jenkins 2.145 and earlier, LTS 2.138.1 and earlier in core/src/main/java/hudson/security/HudsonPrivateSecurityRealm.java that allows attackers without Overall/Read permission to access a specific URL on instances using the built-in Jenkins user database security realm that results in the creation of an ephemeral user record in memory.

Affected products

Jenkins: through 2.138.1; through 2.145

References

http://www.securityfocus.com/bid/106532
https://jenkins.io/security/advisory/2018-10-10/#SECURITY-1128
http://www.securityfocus.com/bid/106532
https://jenkins.io/security/advisory/2018-10-10/#SECURITY-1128

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