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Servers and applications

CVE-2018-1000863

A data modification vulnerability exists in Jenkins 2.153 and earlier, LTS 2.138.3 and earlier in User.java, IdStrategy.java that allows attackers to submit crafted user names that can cause an improper migration of user record storage formats, potentially preventing the victim from logging into Jenkins.

Severity
High 8.2
Published
10 Dec 2018
Last changed
17 Jun 2026
Added to UpHeron
1 Nov 2026
Exploit chance
6.8% in the next 30 daysHigher than 94% of CVEs. EPSS by FIRST, 10 Nov 2026
Weakness
Path traversal (CWE-22)
Attack
Over the network · No login needed · No user action needed
Attacker can
Change some data · Take it down
CVSS vector
CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:H
Sources
NVD

Affected software

SoftwareAffected versions
JenkinsServers and applications · cpe:a:jenkins:jenkins
  • Every version up to 2.138.3
  • Every version up to 2.153

References

  • NVD https://nvd.nist.gov/vuln/detail/CVE-2018-1000863
  • CVE.org https://www.cve.org/CVERecord?id=CVE-2018-1000863