CVE-2026-54168

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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."}], "source": {"advisory": "GHSA-6f2p-296r-cc28", "discovery": "UNKNOWN"}}, "adp": [{"metrics": [{"other": {"type": "ssvc", "content": {"timestamp": "2026-09-17T14:30:42.954463Z", "id": "CVE-2026-54168", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "partial"}], "role": "CISA Coordinator", "version": "2.0.3"}}}], "title": "CISA ADP Vulnrichment", "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-09-17T14:30:57.237Z"}}]}}

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{"affected": [{"affectedData": [{"product": "pipelines-as-code", "vendor": "tektoncd", "versions": [{"status": "affected", "version": "< 0.37.8"}, {"status": "affected", "version": ">= 0.38.0, < 0.39.6"}, {"status": "affected", "version": ">= 0.40.0, < 0.42.1"}, {"status": "affected", "version": ">= 0.43.0, < 0.48.0"}]}], "source": "security-advisories@github.com"}], "cveTags": [], "descriptions": [{"lang": "en", "value": "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."}], "id": "CVE-2026-54168", "lastModified": "2026-09-30T17:43:24.057", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 6.5, "baseSeverity": "MEDIUM", "confidentialityImpact": "HIGH", "integrityImpact": "NONE", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N", "version": "3.1"}, "exploitabilityScore": 2.8, "impactScore": 3.6, "source": "security-advisories@github.com", "type": "Secondary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-54168", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "partial"}], "role": "CISA Coordinator", "timestamp": "2026-09-17T14:30:42.954463Z", "version": "2.0.3"}}]}, "published": "2026-09-15T15:17:17.887", "references": [{"source": "security-advisories@github.com", "url": "https://github.com/tektoncd/pipelines-as-code/commit/001782829e82b83ecb3da903f5a024ca0826b64c"}, {"source": "security-advisories@github.com", "url": "https://github.com/tektoncd/pipelines-as-code/commit/40813976a77920feaf52671320d6d3c5ff08eb7e"}, {"source": "security-advisories@github.com", "url": "https://github.com/tektoncd/pipelines-as-code/commit/ac6fded6dfb69ade7197d4eeed6e90ddbe1b79bc"}, {"source": "security-advisories@github.com", "url": "https://github.com/tektoncd/pipelines-as-code/commit/e0c4a11ea3800ab9d26cf3a8ae92b74cf18527c3"}, {"source": "security-advisories@github.com", "url": "https://github.com/tektoncd/pipelines-as-code/releases/tag/v0.37.8"}, {"source": "security-advisories@github.com", "url": "https://github.com/tektoncd/pipelines-as-code/releases/tag/v0.39.6"}, {"source": "security-advisories@github.com", "url": "https://github.com/tektoncd/pipelines-as-code/releases/tag/v0.42.1"}, {"source": "security-advisories@github.com", "url": "https://github.com/tektoncd/pipelines-as-code/releases/tag/v0.48.0"}, {"source": "security-advisories@github.com", "url": "https://github.com/tektoncd/pipelines-as-code/security/advisories/GHSA-6f2p-296r-cc28"}], "sourceIdentifier": "security-advisories@github.com", "vulnStatus": "Awaiting Analysis", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-269"}, {"lang": "en", "value": "CWE-862"}], "source": "security-advisories@github.com", "type": "Secondary"}]}

{"bugzilla": {"description": "github.com/openshift-pipelines/pipelines-as-code: Pipelines-as-Code: Information disclosure via unscoped GitHub App installation token", "id": "2533851", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2533851"}, "csaw": false, "cvss3": {"cvss3_base_score": "6.5", "cvss3_scoring_vector": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N", "status": "draft"}, "cwe": "CWE-862", "details": ["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.", "A flaw was found in Pipelines-as-Code. A GitHub App installation token, created during webhook processing, is not properly scoped when the App is installed across multiple repositories. This allows a user with push access to one repository to access private repositories within the same installation by submitting a PipelineRun with a remote task annotation. This vulnerability leads to the disclosure of Tekton definitions from private repositories."], "mitigation": {"lang": "en:us", "value": "Limit GitHub App installations to only repositories that require Pipelines-as-Code. Avoid organization-wide or mixed-trust installations that combine repositories with different access requirements under one GitHub App installation."}, "name": "CVE-2026-54168", "package_state": [{"cpe": "cpe:/a:redhat:openshift_builds:1", "fix_state": "Not affected", "package_name": "openshift-builds/openshift-builds-rhel10-operator", "product_name": "Builds for Red Hat OpenShift"}, {"cpe": "cpe:/a:redhat:openshift_builds:1", "fix_state": "Not affected", "package_name": "openshift-builds/openshift-builds-rhel9-operator", "product_name": "Builds for Red Hat OpenShift"}, {"cpe": "cpe:/a:redhat:openshift_pipelines:1", "fix_state": "Not affected", "package_name": "openshift-pipelines-client", "product_name": "OpenShift Pipelines"}, {"cpe": "cpe:/a:redhat:openshift_pipelines:1", "fix_state": "Not affected", "package_name": "openshift-pipelines/pipelines-cli-tkn-rhel8", "product_name": "OpenShift Pipelines"}, {"cpe": "cpe:/a:redhat:openshift_pipelines:1", "fix_state": "Not affected", "package_name": "openshift-pipelines/pipelines-cli-tkn-rhel9", "product_name": "OpenShift Pipelines"}, {"cpe": "cpe:/a:redhat:openshift_pipelines:1", "fix_state": "Not affected", "package_name": "openshift-pipelines/pipelines-opc-rhel9", "product_name": "OpenShift Pipelines"}, {"cpe": "cpe:/a:redhat:openshift_pipelines:1", "fix_state": "Not affected", "package_name": "openshift-pipelines/pipelines-operator-proxy-rhel8", "product_name": "OpenShift Pipelines"}, {"cpe": "cpe:/a:redhat:openshift_pipelines:1", "fix_state": "Not affected", "package_name": "openshift-pipelines/pipelines-operator-proxy-rhel9", "product_name": "OpenShift Pipelines"}, {"cpe": "cpe:/a:redhat:openshift_pipelines:1", "fix_state": "Not affected", "package_name": "openshift-pipelines/pipelines-operator-webhook-rhel8", "product_name": "OpenShift Pipelines"}, {"cpe": "cpe:/a:redhat:openshift_pipelines:1", "fix_state": "Not affected", "package_name": "openshift-pipelines/pipelines-operator-webhook-rhel9", "product_name": "OpenShift Pipelines"}, {"cpe": "cpe:/a:redhat:openshift_pipelines:1", "fix_state": "Not affected", "package_name": "openshift-pipelines/pipelines-pipelines-as-code-cli-rhel8", "product_name": "OpenShift Pipelines"}, {"cpe": "cpe:/a:redhat:openshift_pipelines:1", "fix_state": "Not affected", "package_name": "openshift-pipelines/pipelines-pipelines-as-code-cli-rhel9", "product_name": "OpenShift Pipelines"}, {"cpe": "cpe:/a:redhat:openshift_pipelines:1", "fix_state": "Not affected", "package_name": "openshift-pipelines/pipelines-pipelines-as-code-controller-rhel8", "product_name": "OpenShift Pipelines"}, {"cpe": "cpe:/a:redhat:openshift_pipelines:1", "fix_state": "Not affected", "package_name": "openshift-pipelines/pipelines-pipelines-as-code-controller-rhel9", "product_name": "OpenShift Pipelines"}, {"cpe": "cpe:/a:redhat:openshift_pipelines:1", "fix_state": "Not affected", "package_name": "openshift-pipelines/pipelines-pipelines-as-code-watcher-rhel8", "product_name": "OpenShift Pipelines"}, {"cpe": "cpe:/a:redhat:openshift_pipelines:1", "fix_state": "Not affected", "package_name": "openshift-pipelines/pipelines-pipelines-as-code-watcher-rhel9", "product_name": "OpenShift Pipelines"}, {"cpe": "cpe:/a:redhat:openshift_pipelines:1", "fix_state": "Not affected", "package_name": "openshift-pipelines/pipelines-pipelines-as-code-webhook-rhel8", "product_name": "OpenShift Pipelines"}, {"cpe": "cpe:/a:redhat:openshift_pipelines:1", "fix_state": "Not affected", "package_name": "openshift-pipelines/pipelines-pipelines-as-code-webhook-rhel9", "product_name": "OpenShift Pipelines"}, {"cpe": "cpe:/a:redhat:openshift_pipelines:1", "fix_state": "Not affected", "package_name": "openshift-pipelines/pipelines-rhel8-operator", "product_name": "OpenShift Pipelines"}, {"cpe": "cpe:/a:redhat:openshift_pipelines:1", "fix_state": "Not affected", "package_name": "openshift-pipelines/pipelines-rhel9-operator", "product_name": "OpenShift Pipelines"}, {"cpe": "cpe:/a:redhat:serverless:1", "fix_state": "Not affected", "package_name": "openshift-serverless-1/kn-client-kn-rhel9", "product_name": "OpenShift Serverless"}, {"cpe": "cpe:/a:redhat:serverless:1", "fix_state": "Not affected", "package_name": "openshift-serverless-1/kn-plugin-func-func-util-rhel9", "product_name": "OpenShift Serverless"}, {"cpe": "cpe:/a:redhat:serverless:1", "fix_state": "Not affected", "package_name": "openshift-serverless-clients", "product_name": "OpenShift Serverless"}, {"cpe": "cpe:/a:redhat:openshift_devspaces:3", "fix_state": "Not affected", "package_name": "devspaces/udi-rhel9", "product_name": "Red Hat OpenShift Dev Spaces"}, {"cpe": "cpe:/a:redhat:webterminal:1", "fix_state": "Not affected", "package_name": "web-terminal/web-terminal-tooling-rhel9", "product_name": "Red Hat Web Terminal"}], "public_date": "2026-09-15T14:27:44Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2026-54168\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-54168\nhttps://github.com/tektoncd/pipelines-as-code/commit/001782829e82b83ecb3da903f5a024ca0826b64c\nhttps://github.com/tektoncd/pipelines-as-code/commit/40813976a77920feaf52671320d6d3c5ff08eb7e\nhttps://github.com/tektoncd/pipelines-as-code/commit/ac6fded6dfb69ade7197d4eeed6e90ddbe1b79bc\nhttps://github.com/tektoncd/pipelines-as-code/commit/e0c4a11ea3800ab9d26cf3a8ae92b74cf18527c3\nhttps://github.com/tektoncd/pipelines-as-code/releases/tag/v0.37.8\nhttps://github.com/tektoncd/pipelines-as-code/releases/tag/v0.39.6\nhttps://github.com/tektoncd/pipelines-as-code/releases/tag/v0.42.1\nhttps://github.com/tektoncd/pipelines-as-code/releases/tag/v0.48.0\nhttps://github.com/tektoncd/pipelines-as-code/security/advisories/GHSA-6f2p-296r-cc28"], "statement": "This flaw has a Moderate impact because Pipelines-as-Code GitHub App deployments installed across multiple repositories can issue an installation token that is not restricted to the repository that triggered a webhook. A user with push access to one repository can use a remote-task annotation to read Tekton definitions from another private repository in the same installation. No write access is exposed.", "threat_severity": "Moderate"}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[0,0.37.8)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[0.38.0,0.39.6)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[0.40.0,0.42.1)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[0.43.0,0.48.0)"}}], "enrichment": {"confidence": 100.0, "confidence_source": "cna", "scores": [{"score": 100.0, "source": "cna"}]}, "original": {"product": "pipelines-as-code", "source": "cna", "vendor": "tektoncd"}, "product": "pipelines-as-code", "vendor": "tektoncd"}], "created": "2026-09-16T04:00:13.359162+00:00", "updated": "2026-09-17T19:59:00.064295+00:00", "vendors": ["tektoncd", "tektoncd$PRODUCT$pipelines-as-code"]}