Medium severity · published Sep 2, 2026
CVE-2026-84660
A missing permission check in Jenkins Pipeline: Build Step Plugin 599.v4b_67ea_11b_152 and earlier causes downstream builds triggered by the `build` step to be canceled even when…
5.4
CVSS
0.4%
EPSS
No
On KEV
Description
A missing permission check in Jenkins Pipeline: Build Step Plugin 599.v4b_67ea_11b_152 and earlier causes downstream builds triggered by the `build` step to be canceled even when the build's authentication lacks Item/Cancel permission on the downstream job.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:L
Attack vector
Network
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
None
Integrity
Low
Availability
Low
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.4% · higher than 30% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
JP
Jenkins Pipeline: Build Step Plugin · Jenkins Project
through 599.v4b_67ea_11b_152 · source: vendor
Affected product
JP
Jenkins Pipeline: Build Step Plugin
Jenkins Project
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-84660
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-84660
www.jenkins.io
https://www.jenkins.io/security/advisory/2026-09-02/#SECURITY-3870
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