Sensitive Data Exposure in Jenkins by CloudBees
CVE-2026-53442

5.3MEDIUM

Key Information:

Vendor

Jenkins
Status
Jenkins
Vendor
CVE Published:
10 June 2026

What is CVE-2026-53442?

Jenkins versions 2.567 and earlier, along with LTS versions 2.555.2 and earlier, exhibit a vulnerability where secrets submitted via POST requests in config.xml are stored unencrypted in job configuration files. This lack of encryption allows users with Item/Extended Read permissions or access to the Jenkins controller's file system to view sensitive information, risking unauthorized access and potential data breaches.

Affected Version(s)

Jenkins 2.568

Jenkins 2.568

Jenkins 2.555.3 < 2.555.*

References

https://www.jenkins.io/security/advisory/2026-06-10/#SECU...
vendor-advisory

CVSS V3.1

Score:
5.3
Severity:
MEDIUM
Confidentiality:
Low
Integrity:
None
Availability:
Low
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.