Jenkins 2.575 and earlier, LTS 2.568.1 and earlier handles case-insensitivity in user names and group names inconsistently, allowing attackers able to create new users or groups with names that case-insensitively match other characters to impersonate other users or be granted their permissions in some circumstances.

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Solution

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Workaround

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History

Thu, 06 Aug 2026 19:45:00 +0000

Type Values Removed Values Added
Title Case‑Insensitive User and Group Name Handling Allows Impersonation in Jenkins

Thu, 06 Aug 2026 18:15:00 +0000

Type Values Removed Values Added
Title Inconsistent Case Handling of User and Group Names in Jenkins Allows Impersonation
Weaknesses CWE-287

Thu, 06 Aug 2026 15:30:00 +0000

Type Values Removed Values Added
Weaknesses CWE-178
Metrics cvssV3_1

{'score': 8.1, 'vector': 'CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H'}

ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}


Wed, 05 Aug 2026 20:00:00 +0000

Type Values Removed Values Added
Title Inconsistent Case Handling of User and Group Names in Jenkins Allows Impersonation
First Time appeared Jenkins Project
Jenkins Project jenkins
Weaknesses CWE-287
Vendors & Products Jenkins Project
Jenkins Project jenkins

Wed, 05 Aug 2026 18:00:00 +0000

Type Values Removed Values Added
Description Jenkins 2.575 and earlier, LTS 2.568.1 and earlier handles case-insensitivity in user names and group names inconsistently, allowing attackers able to create new users or groups with names that case-insensitively match other characters to impersonate other users or be granted their permissions in some circumstances.
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cve-icon MITRE

Status: PUBLISHED

Assigner: jenkins

Published:

Updated: 2026-08-06T15:08:29.147Z

Reserved: 2026-08-04T14:13:20.602Z

Link: CVE-2026-70429

cve-icon Vulnrichment

Updated: 2026-08-06T15:07:49.971Z

cve-icon NVD

No data.

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-08-06T19:30:05Z

Weaknesses