{"id":"CVE-2021-26697","state":"PUBLISHED","title":"Apache Airflow: Lineage API endpoint for Experimental API missed authentication check","description":"The lineage endpoint of the deprecated Experimental API was not protected by authentication in Airflow 2.0.0. This allowed unauthenticated users to hit that endpoint. This is low-severity issue as the attacker needs to be aware of certain parameters to pass to that endpoint and even after can just get some metadata about a DAG and a Task. This issue affects Apache Airflow 2.0.0.","publishedAt":"2021-02-17T14:15:15.000Z","updatedAt":"2025-02-13T16:27:54.957Z","severity":null,"assigner":"apache","products":["Apache Software Foundation Apache Airflow"],"affected":[{"vendor":"Apache Software Foundation","product":"Apache Airflow","versions":[{"version":"Apache Airflow 2.0.0","status":"affected"}]}],"references":["https://lists.apache.org/thread.html/re21fec81baea7a6d73b0b5d31efd07cc02c61f832e297f65bb19b519%40%3Cusers.airflow.apache.org%3E","http://www.openwall.com/lists/oss-security/2021/02/17/2","https://lists.apache.org/thread.html/re21fec81baea7a6d73b0b5d31efd07cc02c61f832e297f65bb19b519%40%3Cdev.airflow.apache.org%3E","https://lists.apache.org/thread.html/r36111262a59219a3e2704c71e97cf84937dae5ba7a1da99499e5d8f9%40%3Cannounce.apache.org%3E"],"weaknesses":["CWE-269"],"ingestedAt":"2026-10-29T19:48:13.210Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2021/26xxx/CVE-2021-26697.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.1","cveMetadata":{"cveId":"CVE-2021-26697","state":"PUBLISHED","datePublished":"2021-02-17T14:15:15.000Z","dateUpdated":"2025-02-13T16:27:54.957Z","assignerShortName":"apache","assignerOrgId":"f0158376-9dc2-43b6-827c-5f631a4d8d09","dateReserved":"2021-02-04T00:00:00.000Z"},"containers":{"cna":{"title":"Apache Airflow: Lineage API endpoint for Experimental API missed authentication check","descriptions":[{"lang":"en","value":"The lineage endpoint of the deprecated Experimental API was not protected by authentication in Airflow 2.0.0. This allowed unauthenticated users to hit that endpoint. This is low-severity issue as the attacker needs to be aware of certain parameters to pass to that endpoint and even after can just get some metadata about a DAG and a Task. This issue affects Apache Airflow 2.0.0."}],"affected":[{"vendor":"Apache Software Foundation","product":"Apache Airflow","versions":[{"version":"Apache Airflow 2.0.0","status":"affected"}]}],"references":[{"url":"https://lists.apache.org/thread.html/re21fec81baea7a6d73b0b5d31efd07cc02c61f832e297f65bb19b519%40%3Cusers.airflow.apache.org%3E","tags":["x_refsource_MISC"]},{"url":"http://www.openwall.com/lists/oss-security/2021/02/17/2","name":"[oss-security] 20210217 CVE-2021-26697: Apache Airflow: Lineage API endpoint for Experimental API missed authentication check","tags":["mailing-list","x_refsource_MLIST"]},{"url":"https://lists.apache.org/thread.html/re21fec81baea7a6d73b0b5d31efd07cc02c61f832e297f65bb19b519%40%3Cdev.airflow.apache.org%3E","name":"[airflow-dev] 20210217 CVE-2021-26697: Apache Airflow: Lineage API endpoint for Experimental API missed authentication check","tags":["mailing-list","x_refsource_MLIST"]},{"url":"https://lists.apache.org/thread.html/re21fec81baea7a6d73b0b5d31efd07cc02c61f832e297f65bb19b519%40%3Cusers.airflow.apache.org%3E","name":"[airflow-users] 20210217 CVE-2021-26697: Apache Airflow: Lineage API endpoint for Experimental API missed authentication check","tags":["mailing-list","x_refsource_MLIST"]},{"url":"https://lists.apache.org/thread.html/r36111262a59219a3e2704c71e97cf84937dae5ba7a1da99499e5d8f9%40%3Cannounce.apache.org%3E","name":"[announce] 20210217 CVE-2021-26697: Apache Airflow: Lineage API endpoint for Experimental API missed authentication check","tags":["mailing-list","x_refsource_MLIST"]}],"problemTypes":[{"descriptions":[{"cweId":"CWE-269","description":"CWE-269 Improper Privilege Management","lang":"en","type":"CWE"}]}],"providerMetadata":{"shortName":"apache","dateUpdated":"2024-08-03T20:35:16.000Z","orgId":"f0158376-9dc2-43b6-827c-5f631a4d8d09"},"credits":[{"lang":"en","value":"Apache Airflow would like to thank Ian Carroll for reporting this issue."}],"source":{"discovery":"UNKNOWN"},"x_generator":{"engine":"Vulnogram 0.0.9"},"x_legacyV4Record":{"CVE_data_meta":{"ASSIGNER":"security@apache.org","ID":"CVE-2021-26697","STATE":"PUBLIC","TITLE":"Apache Airflow: Lineage API endpoint for Experimental API missed authentication check"},"affects":{"vendor":{"vendor_data":[{"product":{"product_data":[{"product_name":"Apache Airflow","version":{"version_data":[{"version_affected":"=","version_name":"Apache Airflow","version_value":"2.0.0"}]}}]},"vendor_name":"Apache Software Foundation"}]}},"credit":[{"lang":"eng","value":"Apache Airflow would like to thank Ian Carroll for reporting this issue."}],"data_format":"MITRE","data_type":"CVE","data_version":"4.0","description":{"description_data":[{"lang":"eng","value":"The lineage endpoint of the deprecated Experimental API was not protected by authentication in Airflow 2.0.0. This allowed unauthenticated users to hit that endpoint. This is low-severity issue as the attacker needs to be aware of certain parameters to pass to that endpoint and even after can just get some metadata about a DAG and a Task. This issue affects Apache Airflow 2.0.0."}]},"generator":{"engine":"Vulnogram 0.0.9"},"problemtype":{"problemtype_data":[{"description":[{"lang":"eng","value":"CWE-269 Improper Privilege Management"}]}]},"references":{"reference_data":[{"name":"https://lists.apache.org/thread.html/re21fec81baea7a6d73b0b5d31efd07cc02c61f832e297f65bb19b519%40%3Cusers.airflow.apache.org%3E","refsource":"MISC","url":"https://lists.apache.org/thread.html/re21fec81baea7a6d73b0b5d31efd07cc02c61f832e297f65bb19b519%40%3Cusers.airflow.apache.org%3E"},{"name":"[oss-security] 20210217 CVE-2021-26697: Apache Airflow: Lineage API endpoint for Experimental API missed authentication check","refsource":"MLIST","url":"http://www.openwall.com/lists/oss-security/2021/02/17/2"},{"name":"[airflow-dev] 20210217 CVE-2021-26697: Apache Airflow: Lineage API endpoint for Experimental API missed authentication check","refsource":"MLIST","url":"https://lists.apache.org/thread.html/re21fec81baea7a6d73b0b5d31efd07cc02c61f832e297f65bb19b519@%3Cdev.airflow.apache.org%3E"},{"name":"[airflow-users] 20210217 CVE-2021-26697: Apache Airflow: Lineage API endpoint for Experimental API missed authentication check","refsource":"MLIST","url":"https://lists.apache.org/thread.html/re21fec81baea7a6d73b0b5d31efd07cc02c61f832e297f65bb19b519@%3Cusers.airflow.apache.org%3E"},{"name":"[announce] 20210217 CVE-2021-26697: Apache Airflow: Lineage API endpoint for Experimental API missed authentication check","refsource":"MLIST","url":"https://lists.apache.org/thread.html/r36111262a59219a3e2704c71e97cf84937dae5ba7a1da99499e5d8f9@%3Cannounce.apache.org%3E"}]},"source":{"discovery":"UNKNOWN"}}},"adp":[{"title":"CVE Program Container","references":[{"url":"https://lists.apache.org/thread.html/re21fec81baea7a6d73b0b5d31efd07cc02c61f832e297f65bb19b519%40%3Cusers.airflow.apache.org%3E","tags":["x_refsource_MISC","x_transferred"]},{"url":"http://www.openwall.com/lists/oss-security/2021/02/17/2","name":"[oss-security] 20210217 CVE-2021-26697: Apache Airflow: Lineage API endpoint for Experimental API missed authentication check","tags":["mailing-list","x_refsource_MLIST","x_transferred"]},{"url":"https://lists.apache.org/thread.html/re21fec81baea7a6d73b0b5d31efd07cc02c61f832e297f65bb19b519%40%3Cdev.airflow.apache.org%3E","name":"[airflow-dev] 20210217 CVE-2021-26697: Apache Airflow: Lineage API endpoint for Experimental API missed authentication check","tags":["mailing-list","x_refsource_MLIST","x_transferred"]},{"url":"https://lists.apache.org/thread.html/re21fec81baea7a6d73b0b5d31efd07cc02c61f832e297f65bb19b519%40%3Cusers.airflow.apache.org%3E","name":"[airflow-users] 20210217 CVE-2021-26697: Apache Airflow: Lineage API endpoint for Experimental API missed authentication check","tags":["mailing-list","x_refsource_MLIST","x_transferred"]},{"url":"https://lists.apache.org/thread.html/r36111262a59219a3e2704c71e97cf84937dae5ba7a1da99499e5d8f9%40%3Cannounce.apache.org%3E","name":"[announce] 20210217 CVE-2021-26697: Apache Airflow: Lineage API endpoint for Experimental API missed authentication check","tags":["mailing-list","x_refsource_MLIST","x_transferred"]}],"providerMetadata":{"shortName":"CVE","orgId":"af854a3a-2127-422b-91ae-364da2661108","dateUpdated":"2024-08-03T20:33:40.321Z"}}]}}}