CVE-2026-117618

Full vulnerability record from the local CVENow database.

Description

In Jenkins 2.587 and earlier, LTS 2.580.1 and earlier, the HTTP endpoint for creating the first user account does not check whether the setup wizard has been completed, resulting in a race condition that allows unauthenticated attackers to create an administrator account while the initial user account is being replaced.

Severity

Not scored

CVSS score

Not available

Vulnerability status

Undergoing Analysis

Source identifier

[email protected]

Published

2026-10-28 17:18:21.133000

Last modified

2026-10-29 15:04:37.187000

View original CVE JSON

{
  "id": "CVE-2026-117618",
  "sourceIdentifier": "[email protected]",
  "published": "2026-10-28T17:18:21.133",
  "lastModified": "2026-10-29T15:04:37.187",
  "vulnStatus": "Undergoing Analysis",
  "cveTags": [],
  "descriptions": [
    {
      "lang": "en",
      "value": "In Jenkins 2.587 and earlier, LTS 2.580.1 and earlier, the HTTP endpoint for creating the first user account does not check whether the setup wizard has been completed, resulting in a race condition that allows unauthenticated attackers to create an administrator account while the initial user account is being replaced."
    }
  ],
  "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-4122",
      "source": "[email protected]"
    }
  ]
}