{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-40161", "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "state": "PUBLISHED", "assignerShortName": "GitHub_M", "dateReserved": "2026-04-09T19:31:56.014Z", "datePublished": "2026-04-21T16:26:27.381Z", "dateUpdated": "2026-04-21T17:41:38.895Z"}, "containers": {"cna": {"title": "Tekton Pipelines: Git resolver API mode leaks system-configured API token to user-controlled serverURL", "problemTypes": [{"descriptions": [{"cweId": "CWE-201", "lang": "en", "description": "CWE-201: Insertion of Sensitive Information Into Sent Data", "type": "CWE"}]}], "metrics": [{"cvssV3_1": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 7.7, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "NONE", "privilegesRequired": "LOW", "scope": "CHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N", "version": "3.1"}}], "references": [{"name": "https://github.com/tektoncd/pipeline/security/advisories/GHSA-wjxp-xrpv-xpff", "tags": ["x_refsource_CONFIRM"], "url": "https://github.com/tektoncd/pipeline/security/advisories/GHSA-wjxp-xrpv-xpff"}, {"name": "https://github.com/tektoncd/pipeline/issues/9608", "tags": ["x_refsource_MISC"], "url": "https://github.com/tektoncd/pipeline/issues/9608"}, {"name": "https://github.com/tektoncd/pipeline/issues/9609", "tags": ["x_refsource_MISC"], "url": "https://github.com/tektoncd/pipeline/issues/9609"}], "affected": [{"vendor": "tektoncd", "product": "pipeline", "versions": [{"version": ">= 1.0.0, <= 1.10.0", "status": "affected"}]}], "providerMetadata": {"orgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "shortName": "GitHub_M", "dateUpdated": "2026-04-21T16:26:27.381Z"}, "descriptions": [{"lang": "en", "value": "Tekton Pipelines project provides k8s-style resources for declaring CI/CD-style pipelines. From 1.0.0 to 1.10.0, the Tekton Pipelines git resolver in API mode sends the system-configured Git API token to a user-controlled serverURL when the user omits the token parameter. A tenant with TaskRun or PipelineRun create permission can exfiltrate the shared API token (GitHub PAT, GitLab token, etc.) by pointing serverURL to an attacker-controlled endpoint."}], "source": {"advisory": "GHSA-wjxp-xrpv-xpff", "discovery": "UNKNOWN"}}, "adp": [{"metrics": [{"other": {"type": "ssvc", "content": {"timestamp": "2026-04-21T17:41:32.164689Z", "id": "CVE-2026-40161", "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": "2026-04-21T17:41:38.895Z"}}]}}

{}

{"cveTags": [], "descriptions": [{"lang": "en", "value": "Tekton Pipelines project provides k8s-style resources for declaring CI/CD-style pipelines. From 1.0.0 to 1.10.0, the Tekton Pipelines git resolver in API mode sends the system-configured Git API token to a user-controlled serverURL when the user omits the token parameter. A tenant with TaskRun or PipelineRun create permission can exfiltrate the shared API token (GitHub PAT, GitLab token, etc.) by pointing serverURL to an attacker-controlled endpoint."}], "id": "CVE-2026-40161", "lastModified": "2026-04-21T17:16:53.790", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 7.7, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "NONE", "privilegesRequired": "LOW", "scope": "CHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N", "version": "3.1"}, "exploitabilityScore": 3.1, "impactScore": 4.0, "source": "security-advisories@github.com", "type": "Secondary"}]}, "published": "2026-04-21T17:16:53.790", "references": [{"source": "security-advisories@github.com", "url": "https://github.com/tektoncd/pipeline/issues/9608"}, {"source": "security-advisories@github.com", "url": "https://github.com/tektoncd/pipeline/issues/9609"}, {"source": "security-advisories@github.com", "url": "https://github.com/tektoncd/pipeline/security/advisories/GHSA-wjxp-xrpv-xpff"}], "sourceIdentifier": "security-advisories@github.com", "vulnStatus": "Received", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-201"}], "source": "security-advisories@github.com", "type": "Primary"}]}

{}

{}