CVE-2024-39877Public exploitNetwork attack vector

Scheduler code execution via unsandboxed doc_md templates

Published Jul 17, 2024 · Updated Sep 13, 2024

Code injection in Apache Airflow 2.4.0 through 2.9.2 allows remote authenticated users to execute code in the scheduler via DAG doc_md. The DAG.get_doc_md path sends inline documentation to jinja2.Template instead of the sandboxed template environment, allowing template expressions to escape scheduler isolation. DAG-author access is required, and injected code runs with the scheduler process's access to data and host resources.

CVSS severity8.8
High
EPSS probability1.73%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Code injection in Apache Airflow 2.4.0 through 2.9.2 allows remote authenticated users to execute code in the scheduler via DAG doc_md. The DAG.get_doc_md path sends inline documentation to jinja2.Template instead of the sandboxed template environment, allowing template expressions to escape scheduler isolation. DAG-author access is required, and injected code runs with the scheduler process's access to data and host resources.

The record

CVE
CVE-2024-39877
Published
Jul 17, 2024
Updated
Sep 13, 2024
Vendor
The Apache Software Foundation
Product
Apache Airflow
Classifications
CWE-277, CWE-94, T1059.006
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Jul 17, 2024CVE publishedPublication date reported by the CVE source.
  2. Sep 13, 2024Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=2.4.0 <2.9.3

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

The Apache Software Foundation · Apache Airflowversion=2.4.0 <2.9.3

Published CVSS scores

8.8NIST NVDCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
8.8CISA-ADPCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-277Insecure Inherited Permissions
CWE-94Improper Control of Generation of Code ('Code Injection')
T1059.006Command and Scripting Interpreter: Python

Public exploit references

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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