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The vulnerability of the Perl programming language’s Module::Signature::_verify() function allows attackers to access confidential data, compromise its integrity, and cause service failures.

🗓️ 28 Mar 2023 00:00:00Reported by FSTEC of Russia — Information Security Threat DatabaseType 
bdu_fstec
 bdu_fstec🔗 bdu.fstec.ru👁 9 Views

Perl Module::Signature::_verify() vulnerability due to improper signature checks allows data access, integrity loss, and service disruptions.

Related
Detection
Refs
ReporterTitlePublishedViews
Family
ibm
IBM Security Bulletins		Security Bulletin: IBM QRadar SIEM includes components with known vulnerabilities
15 Jul 202515:21
–ibm
nessus
Tenable Nessus		Amazon Linux 2022 : perl-CPAN, perl-CPAN-tests (ALAS2022-2022-072)
6 Sep 202200:00
–nessus
nessus
Tenable Nessus		Amazon Linux 2022 : perl-CPAN, perl-CPAN-tests (ALAS2022-2022-161)
4 Nov 202200:00
–nessus
nessus
Tenable Nessus		AlmaLinux 8 : perl-CPAN (ALSA-2025:8432)
3 Jun 202500:00
–nessus
nessus
Tenable Nessus		Debian dla-3926 : libperl-dev - security update
21 Oct 202400:00
–nessus
nessus
Tenable Nessus		EulerOS 2.0 SP8 : perl-CPAN (EulerOS-SA-2022-1358)
28 Mar 202200:00
–nessus
nessus
Tenable Nessus		EulerOS Virtualization 3.0.6.0 : perl-CPAN (EulerOS-SA-2022-2581)
10 Oct 202200:00
–nessus
nessus
Tenable Nessus		EulerOS 2.0 SP5 : perl (EulerOS-SA-2023-2163)
9 Jun 202300:00
–nessus
nessus
Tenable Nessus		EulerOS Virtualization 3.0.6.6 : perl (EulerOS-SA-2023-2432)
26 Jul 202300:00
–nessus
nessus
Tenable Nessus		MiracleLinux 8 : perl-CPAN-2.18-402.el8_10 (AXSA:2025-9982:02)
13 Jan 202600:00
–nessus
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Vulners
Node
OR
red_hatred_hat_enterprise_linuxMatch8
fedorafedoraMatch35
SourceLink
blogwww.blog.hackeriet.no/cpan-signature-verification-vulnerabilities/
blogswww.blogs.perl.org/users/neilb/2021/11/addressing-cpan-vulnerabilities-related-to-checksums.html
bugzillawww.bugzilla.redhat.com/show_bug.cgi
githubwww.github.com/andk/cpanpm/commit/46fe910becd5746adca92e18660567c9e8d37eb5
githubwww.github.com/andk/cpanpm/commit/7d4d5e32bcd9b75f7bf70a395938a48ca4a06d25
githubwww.github.com/andk/cpanpm/commit/7f9e5e8c52f535c1c13e177595a5ef4710c72058
githubwww.github.com/andk/cpanpm/commit/89b13baf1d46e4fb10023af30ef305efec4fd603
githubwww.github.com/andk/cpanpm/commit/b27c51adf0fda25dee84cb72cb2b1bf7d832148c
githubwww.github.com/andk/cpanpm/commit/bcbf6d608e48d25306ecfd273118b4d6ba1c5df6
githubwww.github.com/andk/cpanpm/commit/c03257dbebccd4deeff1987d5efd98113643f717
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20 Jan 2026 00:00Current
7.2High risk
Vulners AI Score7.2
CVSS 37.5
CVSS 29.3
EPSS0.00791
PerlModule Signaturecryptographic signaturedata accessintegrity compromiseservice disruptions
9