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CVE-2026-40913

Apache Airflow: Import Errors API Leaks Unauthorized DAG Stack Traces via Incomplete Per-File RBAC Enforcement

CVSS score

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EPSS probability

—

Risk score

—

Published

1 d ago

Official patch verified

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Vulnerability description

DayBreach AI Explanation

Verified against sources

Apache Airflow Unauthorized Stack Trace Leak

Sources read

2

Source agreement

Tam uyum

Evidence confidence

%63

Short explanation

Apache Airflow contains a vulnerability that leaks raw parse-failure stack traces to unauthorized users via its public Import Errors API.

Why does it matter?

Unauthorized users can read stack traces exposing file paths and code, creating a security risk.

What should be done?

  • Upgrade to Apache Airflow 3.4.0 or later
  • Follow vendor advisories and patch references
  • Restrict access using the new IMPORT_ERRORS_ALL permission
Chain of evidence and sources2 verified claims

Apache Airflow genel Import Errors API, eksik dosya bazlı RBAC denetimi nedeniyle ham ayrıştırma hatası yığın izlerini sızdırmaktadır.

Kullanıcıların Apache Airflow 3.4.0 veya sonrasına yükseltme yapması tavsiye edilmektedir.

Show the technical text from the sources

Apache Airflow's public Import Errors API returns the raw parse-failure stack trace to any user with the `ImportError.can_read` permission when the failing file has no registered DAG. This happens when a file fails to parse before any DAG is defined, or when all of its previously registered DAGs are removed but the parse error remains. Users who should not see that file's details can read stack traces that may expose file paths and code. Users are advised to upgrade to Apache Airflow 3.4.0 or later, which restricts these stack traces to users with the new `IMPORT_ERRORS_ALL` permission.

CWE: CWE-285

This explanation was compiled automatically from the source records. Scores, active exploitation, patch and exploit status come straight from the sources.

IMPACT: Affected Products and Software

Affected Products

The following products are affected by CVE-2026-40913 vulnerability. Where our threat engine knows the exact affected versions, they are listed below.

IDVENDORPRODUCTACTION
1Apache Software FoundationApache Airflow View
Total affected vendors: 1|Products: 1

RED HAT CSAF/VEX: Product Impact Check

Red Hat has not yet published a CSAF/VEX impact record for this CVE. This does not mean “not affected”.

SCORING: CVSS from Multiple Sources

CVSS Scores

The Common Vulnerability Scoring System is a standardised framework for assessing the severity of vulnerabilities in software and systems. We collect and display CVSS scores from several sources for each CVE.

SCOREVERSIONSEVERITYVECTORSOURCE
The sources have not yet published a verified CVSS metric.

Patch and Remediation Guide

Solution & Remediation Advisory

Patch verified

2 doğrulanmış yama veya düzeltilmiş sürüm kanıtı bulundu.

cvelist

CNA çözüm referansı

Open source
reference

Yama veya çözüm referansı

Open source
Confirm the affected product and version against the source evidence above.
Restrict access to internet-facing services and apply network segmentation.
Apply the official update named in the evidence only to the matching product and version.
Monitor server logs and network endpoints for signs of anomalous execution.

Public exploit and active exploitation status

Verified exploit intelligence

No verified public PoC, exploit repository or Metasploit module has been found for this CVE yet.

Weakness Classification and Attack Patterns (CWE & CAPEC)

CWE - Common Weakness Enumeration

While CVE identifies specific instances of vulnerabilities, CWE categorises the common flaws or weaknesses that can lead to vulnerabilities. CVE-2026-40913 is associated with the following CWEs:

Common Attack Pattern Enumeration and Classification (CAPEC)

Common Attack Pattern Enumeration and Classification (CAPEC) stores attack patterns, which are descriptions of the common attributes and approaches employed by adversaries to exploit the CVE-2026-40913 weaknesses.

Official Sources and Advisories

Yama doğrulandı

2 doğrulanmış yama veya düzeltilmiş sürüm kanıtı bulundu.

Follow the vendor

Weakness Type (CWE & CAPEC)

Similar Vulnerabilities

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CVE-2026-40913 · Apache Airflow: Import Errors API Leaks…