CVE-2026-117617

Full vulnerability record from the local CVENow database.

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.

Severity

Not scored

CVSS score

Not available

Vulnerability status

Undergoing Analysis

Source identifier

[email protected]

Published

2026-10-28 17:18:21.037000

Last modified

2026-10-29 15:04:37.187000

View original CVE JSON

{
  "id": "CVE-2026-117617",
  "sourceIdentifier": "[email protected]",
  "published": "2026-10-28T17:18:21.037",
  "lastModified": "2026-10-29T15:04:37.187",
  "vulnStatus": "Undergoing Analysis",
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "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."
    }
  ],
  "affected": [
    {
      "source": "[email protected]",
      "affectedData": [
        {
          "vendor": "Jenkins Project",
          "product": "Jenkins",
          "defaultStatus": "affected",
          "versions": [
            {
              "version": "2.588",
              "lessThan": "*",
              "versionType": "maven",
              "status": "unaffected"
            },
            {
              "version": "2.580.2",
              "lessThan": "2.580.*",
              "versionType": "maven",
              "status": "unaffected"
            }
          ]
        }
      ]
    }
  ],
  "metrics": {},
  "references": [
    {
      "url": "https://www.jenkins.io/security/advisory/2026-10-28/#SECURITY-4248",
      "source": "[email protected]"
    }
  ]
}