CVE-2018-1000409

Severity: medium (CVSS 5.4 v3.0)
Exploited in the wild: not listed in CISA KEV
EPSS: 1.2% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2019-01-09 · updated 2026-06-17
Weakness: CWE-384

Description

A session fixation vulnerability exists in Jenkins 2.145 and earlier, LTS 2.138.1 and earlier in core/src/main/java/hudson/security/HudsonPrivateSecurityRealm.java that prevented Jenkins from invalidating the existing session and creating a new one when a user signed up for a new user account.

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-1158
http://www.securityfocus.com/bid/106532
https://jenkins.io/security/advisory/2018-10-10/#SECURITY-1158

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