CVE-2018-6356
This allowed users with Overall/Read permission to download files from the Jenkins master they should not have access to.
Does this matter?
Lower severity and a low EPSS score (3.85%). Track it; it rarely justifies an emergency change on its own.
Description
Jenkins before 2.107 and Jenkins LTS before 2.89.4 did not properly prevent specifying relative paths that escape a base directory for URLs accessing plugin resource files. This allowed users with Overall/Read permission to download files from the Jenkins master they should not have access to. On Windows, any file accessible to the Jenkins master process could be downloaded. On other operating systems, any file within the Jenkins home directory accessible to the Jenkins master process could be downloaded.
- CVSS 3.1
- 6.5 MEDIUMCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
- EPSS
- 3.85% probability · 90th percentile
- Public exploits
- None in Exploit-DB
- CISA KEV
- Not listed
- Weakness
- CWE-22
- Affected
- jenkins/jenkins · oracle/communications cloud native core automated test suite
- Source
- cve@mitre.org
EPSS 3.9% since 27 October 2026; no change recorded yet. Points are recorded when the score first appears and whenever it moves by a percentage point or more.
References
- http://www.openwall.com/lists/oss-security/2018/02/14/1Mailing List, Third Party Advisory
- http://www.securityfocus.com/bid/103037Broken Link, VDB Entry
- https://jenkins.io/security/advisory/2018-02-14/Vendor Advisory
- https://www.oracle.com/security-alerts/cpuapr2022.htmlPatch, Third Party Advisory
- http://www.openwall.com/lists/oss-security/2018/02/14/1Mailing List, Third Party Advisory
- http://www.securityfocus.com/bid/103037Broken Link, VDB Entry
- https://jenkins.io/security/advisory/2018-02-14/Vendor Advisory
- https://www.oracle.com/security-alerts/cpuapr2022.htmlPatch, Third Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA, exploits from Exploit-DB. Refreshed daily. Download this record as JSON.