Moderate severityNVD Advisory· Published Feb 17, 2021· Updated Feb 13, 2025
Apache Airflow: Lineage API endpoint for Experimental API missed authentication check
CVE-2021-26697
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.
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LLM-synthesized narrative grounded in this CVE's description and references.
Affected packages
Versions sourced from the GitHub Security Advisory.
| Package | Affected versions | Patched versions |
|---|---|---|
apache-airflowPyPI | >= 2.0.0, < 2.0.1rc1 | 2.0.1rc1 |
Affected products
3- osv-coords2 versions
>= 2.0.0, < 2.0.1+ 1 more
- (no CPE)range: >= 2.0.0, < 2.0.1
- (no CPE)range: >= 2.0.0, < 2.0.1rc1
Patches
Vulnerability mechanics
References
13- github.com/advisories/GHSA-fh37-cx83-q542ghsaADVISORY
- nvd.nist.gov/vuln/detail/CVE-2021-26697ghsaADVISORY
- www.openwall.com/lists/oss-security/2021/02/17/2ghsamailing-listx_refsource_MLISTWEB
- github.com/apache/airflow/commit/21cedff205e7d62675949fda2aa4616d77232b76ghsaWEB
- github.com/apache/airflow/commit/24a54242d56058846c7978130b3f37ca045d5142ghsaWEB
- github.com/apache/airflow/commit/93957e917ff4cfb0be11aef088bd9527cf728a04ghsaWEB
- github.com/pypa/advisory-database/tree/main/vulns/apache-airflow/PYSEC-2021-3.yamlghsaWEB
- lists.apache.org/thread.html/r36111262a59219a3e2704c71e97cf84937dae5ba7a1da99499e5d8f9%40%3Cannounce.apache.org%3Emitremailing-listx_refsource_MLIST
- lists.apache.org/thread.html/r36111262a59219a3e2704c71e97cf84937dae5ba7a1da99499e5d8f9@%3Cannounce.apache.org%3EghsaWEB
- lists.apache.org/thread.html/re21fec81baea7a6d73b0b5d31efd07cc02c61f832e297f65bb19b519%40%3Cdev.airflow.apache.org%3Emitremailing-listx_refsource_MLIST
- lists.apache.org/thread.html/re21fec81baea7a6d73b0b5d31efd07cc02c61f832e297f65bb19b519%40%3Cusers.airflow.apache.org%3Eghsax_refsource_MISCmailing-listx_refsource_MLISTWEB
- lists.apache.org/thread.html/re21fec81baea7a6d73b0b5d31efd07cc02c61f832e297f65bb19b519@%3Cdev.airflow.apache.org%3EghsaWEB
- lists.apache.org/thread.html/re21fec81baea7a6d73b0b5d31efd07cc02c61f832e297f65bb19b519@%3Cusers.airflow.apache.org%3EghsaWEB
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