Jenkins Pipeline: Groovy Plugin vulnerable to unrestricted instantiation of types
Jenkins Pipeline: Groovy Plugin 4331.v9d06ed4658ff and earlier does not restrict the types that can be instantiated through the Pipeline Snippet Generator, instantiating any type with a constructor annotated with @DataBoundConstructor in response to a request.
This allows attackers to have Pipeline: Groovy Plugin instantiate types related to job or system configuration other than Pipeline steps.
Additionally, this HTTP endpoint can be accessed using the GET method and does not require POST requests, resulting in a cross-site request forgery (CSRF) vulnerability. This allows attackers to create a script approval request attributed to another user, impersonating a trusted user when social engineering an administrator into approving a malicious script.
This vulnerability has been reported through the Jenkins Bug Bounty Program sponsored by the European Commission. Pipeline: Groovy Plugin 4331.4333.v50a_b_076c5199 only instantiates Pipeline steps and metastep delegates through the Snippet Generator, and requires POST requests for the affected HTTP endpoint.
Software afectado
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| Plataforma | Paquete | Versiones vulnerables | Corregida en |
|---|---|---|---|
| Java / Kotlin (Maven) | io.jenkins.plugins:pipeline-groovy-lib | < 4331.4333 | 4331.4333 |
Referencias
- https://nvd.nist.gov/vuln/detail/CVE-2026-57284
- https://github.com/jenkinsci/workflow-cps-plugin/commit/50ab076c519907ebc0f63c8d73f37fcb81686b99
- https://github.com/jenkinsci/workflow-cps-plugin
- https://github.com/jenkinsci/workflow-cps-plugin/releases/tag/4331.4333.v50a_b_076c5199
- https://www.jenkins.io/security/advisory/2026-06-24/#SECURITY-3677
- Vector CVSS
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N- Debilidad (CWE)
CWE-470- Plataforma
- Java / Kotlin (Maven)
- Paquete
io.jenkins.plugins:pipeline-groovy-lib- Publicada
- 24.06.2026
- Actualizado
- 11.10.2026 13:20
Fuentes y licencias
OSV / GitHub Advisory Database - GHSA-2w2h-gwwj-fh3q - CC BY 4.0
Historial de vulnerabilidades: io.jenkins.plugins:pipeline-groovy-lib
Todas las vulnerabilidades publicadas de este paquete (Java / Kotlin (Maven)), de la más reciente a la más antigua. Muestra si es un fallo aislado o un paquete que hay que vigilar.
- Entradas en total
- 5
- Primera → última
- 10.2022 06.2026
- Sin corrección
- 0
- Explotada en ataques
- 0
Distribución por gravedad
- Alta 3
- Media 2
Divulgaciones por año
- 2022: 2
- 2023: 0
- 2024: 0
- 2025: 0
- 2026: 3
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Jenkins Pipeline: Groovy Plugin vulnerable to unrestricted instantiation of types esta entrada
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