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Vulnerability record/PUBLISHED/Published Sep 21, 2026 14:32:47 UTC

CVE-2026-75158

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.

Base score4.3/ 10
SeverityMediumCVSS 3.1

Exploitability / impact

CVSS metric breakdown

Vector-derived attributes
Base severityMedium
Attack vectorNetworkAV
Attack complexityLowAC
Privileges requiredLowPR
User interactionNoneUI
ScopeUnchangedS
Confidentiality impactLowC
Integrity impactNoneI
Availability impactNoneA
CVSS vector stringCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N

CVSS communicates standardized severity and impact characteristics. It does not establish whether a system is exploitable in your specific environment.

Record context

CVE Numbering Authorityapache
Last updatedNov 3, 2026 07:00:41 UTC
PublishedSep 21, 2026 14:32:47 UTC
ReservedAug 17, 2026 18:58:38 UTC

Credits

  • n0mi1k
  • Jarek Potiuk