CPANSA-IO-Socket-SSL-SelfCertificate-2026-97230: IO-Socket-SSL-SelfCertificate vulnerability

Publisher giterlizzi Document category csaf_security_advisory
Initial release date 2026-09-24T00:00:00 Engine CSAF Perl Toolkit 0.26
Current release date 2026-09-24T00:00:00 Build Date
Current version 1 Status final
CVSS v3.1 Base Score 9.8 Severity Critical
Original language Language en
Also referred to

Vulnerability Description

IO::Socket::SSL::SelfCertificate versions 1.00 for Perl contains malware which executes Python code from an obfuscated URL.

The generate_certificate runs a Python script saved as a certificate file. The pyhton script attempts to retrieve code from a hardcoded http URL that is obfuscated with base64 encoding and run the response body directly.

The impact is that arbitrary code can be invoked as the user, without a dropped script being saved on the affected host.

The releases have no test scripts nor build hooks. The intention may have been to trigger the payload after installation.

The dropper script is in lib/Crypt/SelfCertificate/sample/cert.pem.

This is similar to CVE-2026-95831 for the module Crypt::SelfCertificate.

The SHA-256 digests of the files are

ba24ee8ec3b7f47f65bed62e16fb413ace50653cf44bd8ea90914390922831e0 IO-Socket-SSL-SelfCertificate-1.00.tar.gz
821d38830e5eb8607738421c25ac25f59fff02a6ab67daa32fbd020429454dac IO-Socket-SSL-SelfCertificate-1.00/lib/IO/Socket/SSL/SelfCertificate/sample/cert.pem

d483cb7b23b7271cb11cf242bff4a2e1c02df0b9525eb0429abeea8961c399d5 IO-Socket-SSL-SelfCertificate-1.00-upload.tar.gz

Vulnerabilities

CVE-2026-97230

Vulnerability Description

IO::Socket::SSL::SelfCertificate versions 1.00 for Perl contains malware which executes Python code from an obfuscated URL.

The generate_certificate runs a Python script saved as a certificate file. The pyhton script attempts to retrieve code from a hardcoded http URL that is obfuscated with base64 encoding and run the response body directly.

The impact is that arbitrary code can be invoked as the user, without a dropped script being saved on the affected host.

The releases have no test scripts nor build hooks. The intention may have been to trigger the payload after installation.

The dropper script is in lib/Crypt/SelfCertificate/sample/cert.pem.

This is similar to CVE-2026-95831 for the module Crypt::SelfCertificate.

The SHA-256 digests of the files are

ba24ee8ec3b7f47f65bed62e16fb413ace50653cf44bd8ea90914390922831e0 IO-Socket-SSL-SelfCertificate-1.00.tar.gz
821d38830e5eb8607738421c25ac25f59fff02a6ab67daa32fbd020429454dac IO-Socket-SSL-SelfCertificate-1.00/lib/IO/Socket/SSL/SelfCertificate/sample/cert.pem

d483cb7b23b7271cb11cf242bff4a2e1c02df0b9525eb0429abeea8961c399d5 IO-Socket-SSL-SelfCertificate-1.00-upload.tar.gz

Weakness CWE-506 : Embedded Malicious Code

Product status

Known affected
Product Score
IO-Socket-SSL-SelfCertificate greater than or equal 1.00
CVSS Version CVSS Vector CVSS Base Score CVSS Base Severity
3.1 CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H 9.8 Critical

giterlizzi

Namespace: https://github.com/giterlizzi/

gdt@cpan.org

References

Revision history

Version Date of the revision Summary of the revision
1 Thu Sep 24 00:00:00 2026 First release

Sharing rules

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For the TLP version see: https://www.first.org/tlp/