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Vulnerability record · CVE-2018-1000863 · published 10 December 2018

CVE-2018-1000863: Jenkins path traversal vulnerability

Jenkins · Jenkins

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.

8.2 CVSS 3.0 High EPSS 6.8% · top 6.3% CWE-22 · Path traversal
8.2CVSS 3.0 base score, v2 6.4
6.8%EPSS exploitation probability, 30 days
NoNot in CISA KEV
2Affected product versions listed by NVD
8References, 2 tagged exploit
17 Jun 2026Last modified by NVD

Description

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.

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:H

Affected products

2 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
http://www.securityfocus.com/bid/106176 Third Party AdvisoryVDB Entry
https://access.redhat.com/errata/RHBA-2019:0024 Third Party Advisory
https://jenkins.io/security/advisory/2018-12-05/#SECURITY-1072 Vendor Advisory
https://www.tenable.com/security/research/tra-2018-43 ExploitThird Party Advisory
http://www.securityfocus.com/bid/106176 Third Party AdvisoryVDB Entry
https://access.redhat.com/errata/RHBA-2019:0024 Third Party Advisory
https://jenkins.io/security/advisory/2018-12-05/#SECURITY-1072 Vendor Advisory
https://www.tenable.com/security/research/tra-2018-43 ExploitThird Party Advisory

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Same products first, then exploited flaws of the same weakness class.

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Source: NIST National Vulnerability Database (record CVE-2018-1000863), CISA KEV, FIRST EPSS (scores of 2026-09-26). This page is refreshed as NVD updates the record.