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6.5 Medium

CVE-2026-54168 Pipelines-as-Code is a CI/CD system that lets users define Tekton pipelines in source code repositories

Description

Pipelines-as-Code is a CI/CD system that lets users define Tekton pipelines in source code repositories. Prior to 0.37.8, 0.39.6, 0.42.1, and 0.48.0, a GitHub App installation token created during webhook processing is not scoped to the repository that triggered the event when the App is installed across multiple repositories. A user with push access to one repository can submit a PipelineRun containing a pipelinesascode.tekton.dev/task remote task annotation that targets a private repository in the same installation. When ScopeTokenToListOfRepos returns no explicit scope, the missing triggering repository ID leaves the token able to access the entire installation. Pipelines-as-Code resolves and inlines the remote private task with that token, disclosing the repository's Tekton definitions. The demonstrated impact is read-only and does not provide write access. This issue is fixed in versions 0.37.8, 0.39.6, 0.42.1, and 0.48.0.

Affected products and versions

Product Affected versions Fixed in
pipelines-as-code 0.43 0.43.0 → < 0.48.0 0.48.0
pipelines-as-code 0.40 0.40.0 → < 0.42.1 0.42.1
pipelines-as-code 0.38 0.38.0 → < 0.39.6 0.39.6
pipelines-as-code 0.37 earliest → < 0.37.8 0.37.8

References

Timeline

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Other CVEs of pipelines-as-code

The 2 CVEs of pipelines-as-code →
CVE-2026-54167 Pipelines-as-Code is a CI/CD system that lets users define Tekton pipelines in source code repositories 8.2 High
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