{"id":"CVE-2026-40938","sourceIdentifier":"security-advisories@github.com","published":"2026-04-21T21:16:46.283","lastModified":"2026-10-26T21:10:00.170","vulnStatus":"Modified","cveTags":[],"descriptions":[{"lang":"en","value":"Tekton Pipelines project provides k8s-style resources for declaring CI/CD-style pipelines. Starting in version 1.0.0 and prior to versions 1.0.2, 1.3.4, 1.6.2, 1.9.3, and 1.11.1, the git resolver's revision parameter is passed directly as a positional argument to git fetch without any validation that it does not begin with a - character. Because git parses flags from mixed positional arguments, an attacker can inject arbitrary git fetch flags such as --upload-pack=<binary>. Combined with the validateRepoURL function explicitly permitting URLs that begin with / (local filesystem paths), a tenant who can submit ResolutionRequest objects can chain these two behaviors to execute an arbitrary binary on the resolver pod. The tekton-pipelines-resolvers ServiceAccount holds cluster-wide get/list/watch on all Secrets, so code execution on the resolver pod enables full cluster-wide secret exfiltration. Versions 1.0.2, 1.3.4, 1.6.2, 1.9.3, and 1.11.1 fix the issue."},{"lang":"es","value":"El proyecto Tekton Pipelines proporciona recursos estilo k8s para declarar pipelines estilo CI/CD. A partir de la versión 1.0.0 y antes de las versiones 1.0.2, 1.3.4, 1.6.2, 1.9.3 y 1.11.1, el parámetro de revisión del resolvedor de git se pasa directamente como un argumento posicional a git fetch sin ninguna validación de que no comienza con un carácter -. Debido a que git analiza las banderas de argumentos posicionales mixtos, un atacante puede inyectar banderas arbitrarias de git fetch como --upload-pack=[binary]. Combinado con la función validateRepoURL que permite explícitamente URLs que comienzan con / (rutas de sistema de archivos local), un inquilino que puede enviar objetos ResolutionRequest puede encadenar estos dos comportamientos para ejecutar un binario arbitrario en el pod del resolvedor. La ServiceAccount tekton-pipelines-resolvers posee permisos de get/list/watch a nivel de clúster sobre todos los Secrets, por lo que la ejecución de código en el pod del resolvedor permite la exfiltración completa de secretos a nivel de clúster. Las versiones 1.0.2, 1.3.4, 1.6.2, 1.9.3 y 1.11.1 solucionan el problema."}],"affected":[{"source":"security-advisories@github.com","affectedData":[{"vendor":"tektoncd","product":"pipeline","versions":[{"version":">= 1.0.0, < 1.0.2","status":"affected"},{"version":">= 1.2.0, < 1.3.4","status":"affected"},{"version":">= 1.4.0, < 1.6.2","status":"affected"},{"version":">= 1.7.0, < 1.9.3","status":"affected"},{"version":">= 1.10.0, < 1.11.1","status":"affected"}]}]},{"source":"0b0ca135-0b70-47e7-9f44-1890c2a1c46c","affectedData":[{"vendor":"Red Hat","product":"Red Hat OpenShift Builds 1.7.3","defaultStatus":"affected","collectionURL":"https://catalog.redhat.com/software/containers/","packageName":"openshift-builds/openshift-builds-controller-rhel9","cpes":["cpe:/a:redhat:openshift_builds:1.7::el9"],"versions":[{"version":"1780373846","lessThan":"*","versionType":"rpm","status":"unaffected"}]},{"vendor":"Red Hat","product":"Red Hat OpenShift Builds 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