Security readout for executives and security teams
Apache Airflow 2.0.0 exposed one deprecated Experimental API lineage endpoint without authentication. An unauthenticated person could query limited workflow metadata if they knew the right parameters. The cited advisory describes this as low severity because the impact is metadata disclosure, not execution or account takeover. Exposure is limited to organizations running Apache Airflow 2.0.0 with the web/API interface reachable by untrusted users or networks. Internet-exposed Airflow instances are more relevant than internally isolated deployments. Later versions are not identified as affected in the provided sources. Handle as a low-priority hygiene fix unless Airflow 2.0.0 is internet-facing or contains sensitive workflow metadata. The main business risk is unauthorized visibility into workflow structure, which could support later reconnaissance. Mitigation focus: Identify and prioritize any Apache Airflow 2.0.0 deployments.; Check Apache Airflow advisory and release notes; this source bundle does not name a fixed version.; Upgrade from Apache Airflow 2.0.0 after confirming the vendor-corrected release..
Generated from the cited source records. This long-tail analysis has not been individually reviewed by a named human.
Conservative CVE-to-ATT&CK context
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ATT&CK lookup starting points
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CWE-269: Authorization and privilege behavior lookup
Authorization weaknesses can support privilege escalation and valid-account review, depending on exploit path. Open the exact CWE lookup page first, then review the ATT&CK searches from that MITRE weakness context. This is a Glexia lookup hint, not an official ATT&CK mapping.
Open ATT&CK lookupCVE-2021-26697 mapping review
Open the CVE-to-ATT&CK bridge for reviewed, inferred, or future official mappings tied to this CVE.
Open ATT&CK lookup- Severity
- Unknown
- CVSS
- Not scored
- Known Exploited
- No
- Published
CNA and ADP enrichment extracted from CVE v5
These fields come from the CVE record and ADP containers, not from Glexia's Take. They preserve time-varying source decisions such as CISA SSVC, KEV status, CVSS metrics, and provider references.
CVSS and timeline data
No CVSS vectors or timeline events were available in the normalized CVE source material.
Source materials
- CVE List V5 sourceCVE List V5
- https://lists.apache.org/thread.html/re21fec81baea7a6d73b0b5d31efd07cc02c61f832e297f65bb19b519%40%3Cusers.airflow.apache.org%3ECVE reference · x_refsource_MISC
- [airflow-dev] 20210217 CVE-2021-26697: Apache Airflow: Lineage API endpoint for Experimental API missed authentication checkCVE reference · mailing-list, x_refsource_MLIST
- [announce] 20210217 CVE-2021-26697: Apache Airflow: Lineage API endpoint for Experimental API missed authentication checkCVE reference · mailing-list, x_refsource_MLIST
Products and packages named in the record
CWE details
CWE links open Glexia weakness intelligence pages with official CWE context, developer remediation guidance, and related CVE mappings.
Improper Privilege Management
Improper Privilege Management represents a recurring weakness pattern that can create exploitable paths when design, validation, or implementation controls are missing.