CVE-2020-16154
The App::cpanminus package 1.7044 for Perl allows Signature Verification Bypass.
The App::cpanminus package 1.7044 for Perl allows Signature Verification Bypass.
Attack profile
How easy it is to exploit
- Attack vector
- Local
- Complexity
- Low
- Privileges needed
- None
- User interaction
- Required
What an attacker can affect
- Confidentiality
- High
- Integrity
- High
- Availability
- High
Exploit likelihood
What each source reports
NVD Score used
7.8
The App::cpanminus package 1.7044 for Perl allows Signature Verification Bypass.
- Record
CVE-2020-16154- CVSS 3.1
- 7.8 High
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H - CVSS 2.0
- 6.8 Medium
AV:N/AC:M/Au:N/C:P/I:P/A:P - Weakness
- CWE-347
- Updated
- 2026-11-02
CVE List No score
The App::cpanminus package 1.7044 for Perl allows Signature Verification Bypass.
- Record
CVE-2020-16154- Updated
- 2026-11-02
EUVDEUVD-2020-8120 No score
The App::cpanminus package 1.7044 for Perl allows Signature Verification Bypass.
- Record
EUVD-2020-8120- Updated
- 2026-11-03
GitHub AdvisoriesGHSA-m92x-373g-xc36 No score
The App::cpanminus package 1.7044 for Perl allows Signature Verification Bypass.
The App::cpanminus package 1.7044 for Perl allows Signature Verification Bypass.
- Record
GHSA-m92x-373g-xc36- Weakness
- CWE-347
- Updated
- 2026-11-02
OSVALPINE-CVE-2020-16154
7.8
The App::cpanminus package 1.7044 for Perl allows Signature Verification Bypass.
- Record
ALPINE-CVE-2020-16154- CVSS 3.1
- 7.8 High
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H - Updated
- 2026-11-03
OSV
7.8
The App::cpanminus package 1.7044 for Perl allows Signature Verification Bypass.
- Record
CVE-2020-16154- CVSS 3.1
- 7.8 High
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H - Updated
- 2026-11-02
Show 6 moreShow less
OSVDEBIAN-CVE-2020-16154
7.8
The App::cpanminus package 1.7044 for Perl allows Signature Verification Bypass.
- Record
DEBIAN-CVE-2020-16154- CVSS 3.1
- 7.8 High
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H - Updated
- 2026-11-02
OSVUBUNTU-CVE-2020-16154
7.8
The App::cpanminus package 1.7044 for Perl allows Signature Verification Bypass.
- Record
UBUNTU-CVE-2020-16154- CVSS 3.1
- 7.8 High
CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H - Updated
- 2026-11-02
OSVMGASA-2022-0078 No score
Updated cpanminus packages fix security vulnerability
The App::cpanminus package 1.7044 for Perl allows Signature Verification Bypass. (CVE-2020-16154)
- Record
MGASA-2022-0078- Updated
- 2026-11-02
OSVopenSUSE-SU-2022:0074-1 No score
Security update for perl-App-cpanminus
This update for perl-App-cpanminus fixes the following issues:
updated to 1.7045
see /usr/share/doc/packages/perl-App-cpanminus/Changes
Security fixes:
- [CVE-2020-16154] remove the functionality to verify CHECKSUMS signature
updated to 1.7044
see /usr/share/doc/packages/perl-App-cpanminus/Changes
- Record
openSUSE-SU-2022:0074-1- Updated
- 2026-11-02
OSVopenSUSE-SU-2024:11783-1 No score
perl-App-cpanminus-1.7045-1.1 on GA media
These are all security issues fixed in the perl-App-cpanminus-1.7045-1.1 package on the GA media of openSUSE Tumbleweed.
- Record
openSUSE-SU-2024:11783-1- Updated
- 2026-11-02
OSVUSN-5230-1 No score
cpanminus vulnerability
It was discovered that App::cpanminus did not properly verify CHECKSUMS files. An attacker could possibly use this issue to bypass signature verification, gaining access to sensitive data or possibly executing unauthorized code.
- Record
USN-5230-1- Updated
- 2026-11-02
Affected products
Affected packages
| Package | Affected | Fixed |
|---|---|---|
perl-app-cpanminusAlpine:v3.12 |
before 1.7045-r0 | 1.7045-r0 |
perl-app-cpanminusAlpine:v3.13 |
before 1.7045-r0 | 1.7045-r0 |
perl-app-cpanminusAlpine:v3.14 |
before 1.7045-r0 | 1.7045-r0 |
perl-app-cpanminusAlpine:v3.15 |
before 1.7045-r0 | 1.7045-r0 |
perl-app-cpanminusAlpine:v3.16 |
before 1.7045-r0 | 1.7045-r0 |
perl-app-cpanminusAlpine:v3.17 |
before 1.7045-r0 | 1.7045-r0 |
perl-app-cpanminusAlpine:v3.18 |
before 1.7045-r0 | 1.7045-r0 |
perl-app-cpanminusAlpine:v3.19 |
before 1.7045-r0 | 1.7045-r0 |
perl-app-cpanminusAlpine:v3.20 |
before 1.7045-r0 | 1.7045-r0 |
perl-app-cpanminusAlpine:v3.21 |
before 1.7045-r0 | 1.7045-r0 |
Show 14 moreShow less
| Package | Affected | Fixed |
|---|---|---|
perl-app-cpanminusAlpine:v3.22 |
before 1.7045-r0 | 1.7045-r0 |
perl-app-cpanminusAlpine:v3.23 |
before 1.7045-r0 | 1.7045-r0 |
perl-app-cpanminusAlpine:v3.24 |
before 1.7045-r0 | 1.7045-r0 |
cpanminusDebian:12 |
before 1.7045-1 | 1.7045-1 |
cpanminusDebian:13 |
before 1.7045-1 | 1.7045-1 |
cpanminusDebian:14 |
before 1.7045-1 | 1.7045-1 |
cpanminusMageia:8 |
before 1.704.500-1.mga8 | 1.704.500-1.mga8 |
cpanminusUbuntu:Pro:16.04:LTS |
before 1.7040-1ubuntu0.1~esm1, plus listed versions 1.7014-11.7039-11.7040-1 |
1.7040-1ubuntu0.1~esm1 |
cpanminusUbuntu:Pro:18.04:LTS |
before 1.7043-1ubuntu0.1~esm1, plus listed versions 1.7042-21.7043-1 |
1.7043-1ubuntu0.1~esm1 |
cpanminusUbuntu:Pro:20.04:LTS |
before 1.7044-1ubuntu0.1~esm1, plus listed versions 1.7044-1 |
1.7044-1ubuntu0.1~esm1 |
cpanminusUbuntu:22.04:LTS |
before 1.7045-1, plus listed versions 1.7044-2 |
1.7045-1 |
perl-App-cpanminusSUSE:Package Hub 15 SP3 |
before 1.7045-bp153.2.3.1 | 1.7045-bp153.2.3.1 |
perl-App-cpanminusopenSUSE:Leap 15.3 |
before 1.7045-bp153.2.3.1 | 1.7045-bp153.2.3.1 |
perl-App-cpanminusopenSUSE:Tumbleweed |
before 1.7045-1.1 | 1.7045-1.1 |
History
| Recorded | Changed | Sources |
|---|---|---|
| affected, aliases, references | OSV | |
| aliases | EUVD | |
| first indexed | CVE List, GitHub Advisories, NVD, OSV |
Dates are when Every CVE recorded each change. Upstream dates may differ.
In short
CVE-2020-16154 is a high vulnerability (CVSS 7.8) in App\ \, published December 13, 2021. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.76%, the 55th percentile. Fixed in perl-app-cpanminus 1.7045-r0.
References
metacpan.org/pod/App::cpanminus
blog.hackeriet.no/cpan-signature-verification-vulnerabilities
lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/DENFY4CRTIZL5WYYUYUM4VKCJNXO4QIW
nvd.nist.gov/vuln/detail/CVE-2020-16154
lists.fedoraproject.org/archives/list/[email protected]/message/DENFY4CRTIZL5WYYUYUM4VKCJNXO4QIW
github.com/advisories/GHSA-m92x-373g-xc36
Show 11 moreShow less
security.alpinelinux.org/vuln/CVE-2020-16154
security-tracker.debian.org/tracker/CVE-2020-16154
advisories.mageia.org/MGASA-2022-0078.html
bugs.mageia.org/show_bug.cgi?id=30019
lists.fedoraproject.org/archives/list/[email protected]/thread/DENFY4CRTIZL5WYYUYUM4VKCJNXO4QIW
ubuntu.com/security/CVE-2020-16154
blogs.perl.org/users/neilb/2021/11/addressing-cpan-vulnerabilities-related-to-checksums.html
ubuntu.com/security/notices/USN-5230-1
cve.org/CVERecord?id=CVE-2020-16154
lists.opensuse.org/archives/list/[email protected]/thread/O2R4OBBVU7JBUBEWOTAIN5NEZXBGJK6O
suse.com/security/cve/CVE-2020-16154