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CVE-2026-75158

Apache Airflow: Assets events API returns asset events for every Dag with no per-Dag authorization filter

MEDIUM
4.3
CVSS Score
Published: September 21, 2026 at 02:32 PM UTC
Updated: September 25, 2026 at 02:17 PM UTC
1 product affected across 1 vendorAirflow

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Severity
MEDIUM4.3
Exploit prediction
EPSS 0.6%
SSVC
No known exploit

Description

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.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Airflow· Apachepypi
95%
v < 3.3.2
Affected range stops below 3.3.2, so it looks safe — our inference, not a vendor statement

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

Patch and advisory references

References (3)

PatchIssue TrackingVendor Advisory
Source: cverecord
https://github.com/apache/airflow/pull/71741
Vendor AdvisoryMailing List
Source: cverecord
https://lists.apache.org/thread/rx5lg86l0qkjl2s7dtmpqxjq0xplr4fy
Mailing ListThird Party Advisory
Source: af854a3a-2127-422b-91ae-364da2661108
http://www.openwall.com/lists/oss-security/2026/09/21/3

SSVC — Action Prioritization

SSVCNo known exploitNot automatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

4.3MEDIUMCISA-ADP
Attack Vector
NETWORK
Complexity
LOW
Privileges
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
LOW
Integrity
NONE
Availability
NONE
Vector?

Quick Info

StatusANALYZED
CWE
CWE-200

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