Jenkins <=2.567 & LTS <=2.555.2: Unencrypted secrets in config.xml
CVE-2026-53442 Published on June 10, 2026
Jenkins 2.567 and earlier, LTS 2.555.2 and earlier does not encrypt secrets from POST config.xml submissions before storing them in job configurations unencrypted in job config.xml files on the Jenkins controller where they can be viewed by users with Item/Extended Read permission, or access to the Jenkins controller file system.
Vulnerability Analysis
CVE-2026-53442 is exploitable with network access, and does not require authorization privileges or user interaction. This vulnerability is considered to have a low attack complexity. The potential impact of an exploit of this vulnerability is considered to have a small impact on confidentiality, a small impact on integrity and availability.
Weakness Type
Missing Encryption of Sensitive Data
The software does not encrypt sensitive or critical information before storage or transmission. The lack of proper data encryption passes up the guarantees of confidentiality, integrity, and accountability that properly implemented encryption conveys.
Products Associated with CVE-2026-53442
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Affected Versions
Jenkins Project Jenkins:- Version 2.568 and below * is unaffected.
- Version 2.555.3 and below 2.555.* is unaffected.