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VULNERABILITIES

CVE-2026-117617 Details

Description

Jenkins 2.587 and earlier, LTS 2.580.1 and earlier checks for symbolic links in the path of an extracted file only before creating its parent directories, not immediately before writing it, and allows symbolic links in artifacts to replace existing files or empty directories, allowing attackers with Item/Configure permission to write files to arbitrary locations on the Jenkins controller file system.

Metrics

CVSS 3.x Severity and Vector Strings:

NIST: [email protected]CVSS-B:8.1 HIGHVector:CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H
CNA: CISA-ADPCVSS-B:8.1 HIGHVector:CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:H

References to Advisories, Solutions, and Tools

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URLSource(s)Tag(s)
https://www.jenkins.io/security/advisory/2026-10-28/#SECURITY-4248 [email protected]MitigationVendor Advisory

Weakness Enumeration

CWE-IDCWE NameSource
CWE-59Improper Link Resolution Before File Access ('Link Following')[email protected]
CWE-59Improper Link Resolution Before File Access ('Link Following')CISA-ADP

Affected Products

ProductVersions
jenkins jenkins
< 2.580.2
< 2.588

CPE

  • cpe:2.3:a:jenkins:jenkins:*:*:*:*:lts:*:*:*
  • cpe:2.3:a:jenkins:jenkins:*:*:*:*:-:*:*:*

Remediation

  • No remediation found in references.

Change History

3 change records found show changes

QUICK INFO

CVE Dictionary Entry:
CVE-2026-117617
NVD Published Date:
Oct 28, 2026
NVD Last Modified:
Nov 5, 2026
Source:
[email protected]
CVE-2026-117617 Details - Not Deferred