In Jenkins 2.567 and earlier, LTS 2.555.2 and earlier, it is possible for attackers to have Jenkins deserialize arbitrary types defined in Jenkins core or plugins from an attacker-controlled `config.xml` submission in a way that allows them to handle HTTP requests afterwards.
This can be used to impersonate any user and send HTTP requests on their behalf, up to and including use of the Script Console to run arbitrary code, or to read arbitrary files from the Jenkins controller.
Metrics
Affected Vendors & Products
References
History
Thu, 11 Jun 2026 13:30:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| First Time appeared |
Jenkins
Jenkins jenkins |
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| CPEs | cpe:2.3:a:jenkins:jenkins:*:*:*:*:-:*:*:* cpe:2.3:a:jenkins:jenkins:*:*:*:*:lts:*:*:* |
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| Vendors & Products |
Jenkins
Jenkins jenkins |
Wed, 10 Jun 2026 20:00:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Title | Jenkins config.xml Deserialization Enables Remote Code Execution |
Wed, 10 Jun 2026 18:15:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Title | Jenkins Arbitrary Deserialization via Custom config.xml Enables Remote Code Execution | |
| Weaknesses | CWE-284 |
Wed, 10 Jun 2026 16:30:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Metrics |
cvssV3_1
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Wed, 10 Jun 2026 15:45:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Title | Jenkins Arbitrary Deserialization via Custom config.xml Enables Remote Code Execution | |
| First Time appeared |
Jenkins Project
Jenkins Project jenkins |
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| Weaknesses | CWE-284 CWE-502 |
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| Vendors & Products |
Jenkins Project
Jenkins Project jenkins |
Wed, 10 Jun 2026 13:30:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Description | In Jenkins 2.567 and earlier, LTS 2.555.2 and earlier, it is possible for attackers to have Jenkins deserialize arbitrary types defined in Jenkins core or plugins from an attacker-controlled `config.xml` submission in a way that allows them to handle HTTP requests afterwards. This can be used to impersonate any user and send HTTP requests on their behalf, up to and including use of the Script Console to run arbitrary code, or to read arbitrary files from the Jenkins controller. | |
| References |
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Status: PUBLISHED
Assigner: jenkins
Published: 2026-06-10T13:05:57.208Z
Updated: 2026-06-11T03:55:32.661Z
Reserved: 2026-06-09T14:26:44.788Z
Link: CVE-2026-53435
Updated: 2026-06-10T15:35:34.315Z
Status : Analyzed
Published: 2026-06-10T14:16:36.440
Modified: 2026-06-11T13:26:14.093
Link: CVE-2026-53435
No data.