CVE-2024-34997Public exploitNetwork attack vector

Authenticated code execution via crafted array deserialization

Published May 17, 2024 · Updated Aug 27, 2024

Deserialization in Joblib Project Joblib 1.4.2 allows remote authenticated users to execute arbitrary code via a crafted array. NumpyArrayWrapper.read_array calls pickle.load on object-dtype array data without restricting the objects reconstructed from the supplied stream. Execution requires consuming software to load attacker-controlled serialized data; the supplier disputes the CVE because the wrapper is intended for trusted caching and process communication.

CVSS severity7.5
High
EPSS probability0.67%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Deserialization in Joblib Project Joblib 1.4.2 allows remote authenticated users to execute arbitrary code via a crafted array. NumpyArrayWrapper.read_array calls pickle.load on object-dtype array data without restricting the objects reconstructed from the supplied stream. Execution requires consuming software to load attacker-controlled serialized data; the supplier disputes the CVE because the wrapper is intended for trusted caching and process communication.

The record

CVE
CVE-2024-34997
Published
May 17, 2024
Updated
Aug 27, 2024
Vendor
Joblib Project
Product
Joblib
Classifications
CWE-502
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. May 17, 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=1.4.2

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

Joblib Project · Joblibversion=1.4.2

Published CVSS scores

7.5CISA-ADPCVSS:3.1/AV:N/AC:H/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.

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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
Privilegesauthenticated
Known exploitationUnconfirmed
Public exploitPublished

Weakness, pattern, technique

CWE-502Deserialization of Untrusted Data

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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