CVE-2024-28423

Code execution via unsafe YAML deserialization

Published Mar 14, 2024 · Updated Aug 27, 2024

Unsafe YAML deserialization in Felix Uellendall airflow-diagrams 2.1.0 allows local users to execute arbitrary code via a crafted YML file. The generate command's --from-file path is opened by _load and passed to yaml.unsafe_load, which honors Python object tags that can invoke functions. Execution requires a user to run the CLI against attacker-controlled YAML, and injected code runs with that user's privileges.

CVSS severity9.8
Critical
EPSS probability0.78%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Unsafe YAML deserialization in Felix Uellendall airflow-diagrams 2.1.0 allows local users to execute arbitrary code via a crafted YML file. The generate command's --from-file path is opened by _load and passed to yaml.unsafe_load, which honors Python object tags that can invoke functions. Execution requires a user to run the CLI against attacker-controlled YAML, and injected code runs with that user's privileges.

The record

CVE
CVE-2024-28423
Published
Mar 14, 2024
Updated
Aug 27, 2024
Vendor
Felix Uellendall
Product
airflow-diagrams
Classifications
CWE-434, T1204.002
Attack vector
local
Privileges
unauthenticated

Timeline

How it unfolded

  1. Mar 14, 2024CVE publishedPublication date reported by the CVE source.
  2. Aug 27, 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=2.1.0

What conditions does exploitation require?

Attack vectorlocal
Required privilegesunauthenticated

What is affected?

Felix Uellendall · airflow-diagramsversion=2.1.0

Published CVSS scores

9.8CISA-ADPCVSS:3.1/AV:N/AC:L/PR:N/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.

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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)
Vectorlocal
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-434Unrestricted Upload of File with Dangerous Type
T1204.002Malicious File

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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