---
id: CVE-2026-84657
title: >-
  In Jenkins 2.579 and earlier, LTS 2.568.2 and earlier, the build CLI command
  does not check the Item/Cancel permission when using the -s flag to cancel a
  build triggered to wait for completion, allowing attackers with Item/Build
  permissi…
summary: >-
  In Jenkins 2.579 and earlier, LTS 2.568.2 and earlier, the build CLI command
  does not check the Item/Cancel permission when using the -s flag to cancel a
  build triggered to wait for completion, allowing attackers with Item/Build
  permissi…
severity: medium
cvss: 4.2
cvssVector: 'CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:L/A:L'
cwe:
  - CWE-862
vendor: jenkins
product: jenkins
affected:
  - jenkins <= 2.568.2
  - jenkins <= 2.579
published: '2026-09-02'
updated: '2026-09-15'
sourceUpdated: '2026-09-15T18:05:47.627'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-84657'
references:
  - url: 'https://www.jenkins.io/security/advisory/2026-09-02/#SECURITY-4015'
    label: jenkinsci-cert@googlegroups.com
tags:
  - nvd
epss: 0.00185
epssPercentile: 0.08318
ingestedAt: '2026-09-15T18:41:59.125Z'
---

## Overview

In Jenkins 2.579 and earlier, LTS 2.568.2 and earlier, the build CLI command does not check the Item/Cancel permission when using the -s flag to cancel a build triggered to wait for completion, allowing attackers with Item/Build permission to cancel builds started by other users.

## Affected

- `jenkins <= 2.568.2`
- `jenkins <= 2.579`

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.