CVE-2024-21542Public exploitNetwork attack vector

Arbitrary file write via unsafe tar extraction

Published Dec 10, 2024 · Updated Aug 3, 2026

Path traversal in Spotify Luigi before 3.6.0 allows remote attackers to write files outside a work directory via crafted tar archives. The LSF and SGE runner extraction functions pass each package-tar member to tarfile.extract without verifying that its resolved path remains under work_dir. Exploitation requires a Luigi workflow to process an attacker-controlled packages archive, and files are written with the compute-node process's permissions.

CVSS severity8.6
High
EPSS probability1.14%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Path traversal in Spotify Luigi before 3.6.0 allows remote attackers to write files outside a work directory via crafted tar archives. The LSF and SGE runner extraction functions pass each package-tar member to tarfile.extract without verifying that its resolved path remains under work_dir. Exploitation requires a Luigi workflow to process an attacker-controlled packages archive, and files are written with the compute-node process's permissions.

The record

CVE
CVE-2024-21542
Published
Dec 10, 2024
Updated
Aug 3, 2026
Vendor
Spotify
Product
Luigi
Classifications
CWE-22, CWE-29
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Dec 10, 2024CVE publishedPublication date reported by the CVE source.
  2. Aug 3, 2026Record 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=0 <3.6.0

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Spotify · Luigiversion=0 <3.6.0

Published CVSS scores

6.6SnykCVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:H/SA:N/E:P
8.6SnykCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:H/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 exploitPublished

Weakness, pattern, technique

CWE-22Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
CWE-29Path Traversal: '\..\filename'

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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