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Vulnerability record · CVE-2026-84657 · published 2 September 2026

CVE-2026-84657: Jenkins missing authorization vulnerability

Jenkins · Jenkins

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.

4.2 CVSS 3.1 Medium EPSS 0.25% · top 84.5% CWE-862 · Missing authorization
4.2CVSS 3.1 base score
0.25%EPSS exploitation probability, 30 days
NoNot in CISA KEV
1Affected product versions listed by NVD
1References
15 Sep 2026Last modified by NVD

Description

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.

CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:N/I:L/A:L

Affected products

1 vulnerable configurations from NVD's CPE data, grouped by vendor and product.

References

LinkTags
https://www.jenkins.io/security/advisory/2026-09-02/#SECURITY-4015 Vendor Advisory

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Related vulnerabilities

Same products first, then exploited flaws of the same weakness class.

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Source: NIST National Vulnerability Database (record CVE-2026-84657), CISA KEV, FIRST EPSS (scores of 2026-10-12). This page is refreshed as NVD updates the record.