01 Record

CVE-2026-95831

Crypt::SelfCertificate versions from 1.01 through 1.05 for Perl contains malware which executes Python code from an obfuscated URL

HighPUBLISHEDCNA: CPANSec

CNA base score7.8 CVSS v3.xCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

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02 Description

Crypt::SelfCertificate versions from 1.01 through 1.05 for Perl contains malware which executes Python code from an obfuscated URL

03 Exploitation and scoring

Exploitation

Assessed, none found. CISA's assessment recorded neither public exploit code nor evidence of exploitation when it was made.

SSVC decision

ExploitationnoneCISA recorded no public exploit code and no evidence of exploitation.
AutomatablenoAt least one step from reconnaissance to exploitation cannot be reliably automated.
Technical ImpacttotalSuccessful exploitation gives total control of the vulnerable component.

CISA publishes the decision points, not a final SSVC decision. The decision also depends on mission and well-being impact, which is a property of your deployment rather than of the vulnerability.

EPSS probability

0.12% probability of exploitation activity in the next 30 days.

EPSS percentile

Equal to or higher than the score of 1.6% of scored records. A rank, not a probability.

NVD base score

7.8 (CVSS v3.x), scored by the NVD independently of the CNA.

NVD CVSS vector

CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

NVD analysis status

Deferred. NVD last modified this record on 2026-09-23.

Red Hat severity

No Red Hat rating. Red Hat rates the CVEs that affect its products.

Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.

04 Metadata

Published

2026-09-22 18:21Z1 MO AGO

Last updated

2026-09-23 16:09Z1 MO AGO

Reserved

2026-09-22

Assigning CNA

CPANSec

Record state

PUBLISHED

Severity

High (CVSS 7.8)

CNA CVSS vector

CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Weaknesses

CWE-506Embedded Malicious CodeClass

Data version

5.2

Document digest

4831452f4b5a5d760fd180c473b489d947c99cfb81d99d49dbafaf0937f14823

05 Affected products

No products listed

This record names no affected vendor or product. That is common for reserved identifiers and for records whose CNA published only a narrative description.

06 References

www.nntp.perl.orghttps://www.nntp.perl.org/group/perl.cpan.testers.discuss/2026/09/msg4754.htmlvendor-advisory
www.openwall.comhttp://www.openwall.com/lists/oss-security/2026/09/22/21
www.openwall.comhttp://www.openwall.com/lists/oss-security/2026/09/23/2
www.openwall.comhttp://www.openwall.com/lists/oss-security/2026/09/23/3

07 Remediation

Systems on which the affected package was installed should be considered potentially compromised and investigated accordingly.