EUVD-2026-83944
GHSA-pfr9-65p3-w9r9
Severity by source
AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
Authenticated asset-read user (PR:L) over the API (AV:N/AC:L/UI:N) reads only cross-tenant metadata (C:L); no integrity or availability impact and no scope change.
Primary rating from Vendor (apache).
CVSS VectorVendor: apache
Lifecycle Timeline
4DescriptionCVE.org
Apache Airflow's /assets/events API returned asset events for every Dag in the deployment, with no filter restricting them to the Dags the caller is authorized to read. Any authenticated user holding asset-read access could therefore enumerate asset events - including the source Dag ID, task ID, run ID and event timestamps - for Dags they have no permission to see. Because the filter was also absent from the count query, total_entries and pagination disclosed the existence of hidden Dags even without inspecting individual rows. Deployments are affected whenever per-Dag access control is used to separate teams or tenants; no special configuration is required. Upgrade to apache-airflow 3.3.2 or later.
AnalysisAI
Information disclosure in Apache Airflow's /assets/events REST endpoint lets an authenticated user who holds asset-read permission enumerate asset events - source Dag ID, task ID, run ID, timestamps, and total existence counts via pagination - for Dags they have no authorization to read. The endpoint applied no per-Dag readability filter, and because the same filter was missing from the count query, total_entries alone revealed the existence of hidden Dags. …
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Attack ChainAIDerived
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Vulnerability AssessmentAI
| Exploitation | Requires an authenticated Airflow account holding asset-read access; the caller can then retrieve asset events for Dags they have no permission to read. … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | This is a genuine but modest-severity broken-authorization/information-disclosure flaw, not a high-urgency issue. … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in. |
| Exploit Scenario | Full exploit scenario with step-by-step reproduction available after sign-in. |
| Remediation | Upgrade to apache-airflow 3.3.2 or later, which is the vendor-released fix; the upstream change (Apache Airflow PR https://github.com/apache/airflow/pull/71741) adds the `PermittedAssetEventFilter` so `/assets/events` and its count query are both scoped to the caller's readable Dags. … Detailed patch versions, workarounds, and compensating controls in full report. |
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Same weakness CWE-200 – Information Exposure
View allSame technique Information Disclosure
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External POC / Exploit Code
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