CVE-2022-40604Network attack vector

Information disclosure via formatted task-log path

Published Sep 21, 2022 · Updated May 27, 2025

Format-string injection in Apache Airflow 2.3.0 through 2.3.4 allows remote attackers to extract information through a crafted log URL. The task-log reader appends a log-relative path to a URL template and then formats the entire result, interpreting braces in the path as field expressions against the task instance. Triggering the flaw requires the crafted path to reach the webserver's worker-log retrieval flow; the published impact is disclosure only.

CVSS severity7.5
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

Format-string injection in Apache Airflow 2.3.0 through 2.3.4 allows remote attackers to extract information through a crafted log URL. The task-log reader appends a log-relative path to a URL template and then formats the entire result, interpreting braces in the path as field expressions against the task instance. Triggering the flaw requires the crafted path to reach the webserver's worker-log retrieval flow; the published impact is disclosure only.

The record

CVE
CVE-2022-40604
Published
Sep 21, 2022
Updated
May 27, 2025
Vendor
The Apache Software Foundation
Product
Apache Airflow
Classifications
CWE-134
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Sep 21, 2022CVE publishedPublication date reported by the CVE source.
  2. May 27, 2025Record 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=2.3.0 <unspecified
  2. Affected versionversion=unspecified <2.4.0

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

The Apache Software Foundation · Apache Airflowversion=2.3.0 <unspecified; version=unspecified <2.4.0

Published CVSS scores

7.5NIST NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
7.5CISA-ADPCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

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.

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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
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-134Use of Externally-Controlled Format String

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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