CVE-2024-45321Network attack vector

Code execution via unauthenticated package downloads

Published Aug 27, 2024 · Updated Sep 6, 2024

Code execution in Perl App::cpanminus 1.7047 and earlier allows remote attackers to replace CPAN packages downloaded over HTTP. The default mirror and metadata endpoints use unauthenticated HTTP, so downloaded distributions receive no transport-integrity protection. An attacker must intercept outbound traffic during default-configured package retrieval; substituted package code runs with the cpanm process's privileges.

CVSS severity8.1
High
EPSS probability0.74%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Code execution in Perl App::cpanminus 1.7047 and earlier allows remote attackers to replace CPAN packages downloaded over HTTP. The default mirror and metadata endpoints use unauthenticated HTTP, so downloaded distributions receive no transport-integrity protection. An attacker must intercept outbound traffic during default-configured package retrieval; substituted package code runs with the cpanm process's privileges.

The record

CVE
CVE-2024-45321
Published
Aug 27, 2024
Updated
Sep 6, 2024
Vendor
Perl
Product
cpanminus
Classifications
CWE-494, T1557
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Aug 27, 2024CVE publishedPublication date reported by the CVE source.
  2. Sep 6, 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=0 <=1.7047

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

Perl · cpanminusversion=0 <=1.7047

Published CVSS scores

9.8CISA-ADPCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
8.1NIST NVDCVSS:3.1/AV:N/AC:H/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.

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

No observations available

Sep 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-494Download of Code Without Integrity Check
T1557Adversary-in-the-Middle

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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