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MEDIUM · 4.3

CVE-2026-84656

A missing permission check in Jenkins 2.579 and earlier, LTS 2.568.2 and earlier allows attackers with Item/Read permission on at least one job to read build parameter names and values of jobs they ha...

Vulnerability Description

A missing permission check in Jenkins 2.579 and earlier, LTS 2.568.2 and earlier allows attackers with Item/Read permission on at least one job to read build parameter names and values of jobs they have no access to.

CVSS Score

4.3

MEDIUM

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
LOW
Integrity
NONE
Availability
NONE

Affected Products

VendorProductVersions
JenkinsJenkins<= 2.568.2

Related Weaknesses (CWE)

CWE-862

References

FAQ

What is CVE-2026-84656?

CVE-2026-84656 is a vulnerability with a CVSS score of 4.3 (MEDIUM). A missing permission check in Jenkins 2.579 and earlier, LTS 2.568.2 and earlier allows attackers with Item/Read permission on at least one job to read build parameter names and values of jobs they ha...

How severe is CVE-2026-84656?

CVE-2026-84656 has been rated MEDIUM with a CVSS base score of 4.3/10. Review the CVSS metrics above for detailed severity breakdown.

Is there a patch for CVE-2026-84656?

Check the references section above for vendor advisories and patch information. Affected products include: Jenkins Jenkins.