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.
For version 1.01, the dropper script is in lib/Crypt/SelfCertificate/sample/validate.p12.
For version 1.05, the dropper script is in lib/Crypt/SelfCertificate/sample/cert7.pem.
The SHA-256 digests of the files are
fbff21f45ff748365062a5e36fb2d72558cad82a507a6f357f320b4fcdf07760 Crypt-SelfCertificate-1.01.tar.gz
27b2d2d3174ad771474fff2521f5084ec231e9218ea8c832515aef1cbd5897bc lib/Crypt/SelfCertificate/sample/validate.p12
9fdfa7d69b034b77d4510cda567e8da1e486ca81c7daaadc5732a45c41d71991 Crypt-SelfCertificate-1.05.tar.gz
27b2d2d3174ad771474fff2521f5084ec231e9218ea8c832515aef1cbd5897bc lib/Crypt/SelfCertificate/sample/cert7.pem
Analysis
Analysis and contextual insights are available on OpenCVE Cloud.
Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).
| Vendor | Product | Default status | Versions | ||||||
|---|---|---|---|---|---|---|---|---|---|
| unaffected |
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Vendor Solution
Systems on which the affected package was installed should be considered potentially compromised and investigated accordingly.
Tracking
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Tue, 22 Sep 2026 18:30:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Description | Crypt::SelfCertificate versions from 1.01 through 1.05 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. For version 1.01, the dropper script is in lib/Crypt/SelfCertificate/sample/validate.p12. For version 1.05, the dropper script is in lib/Crypt/SelfCertificate/sample/cert7.pem. The SHA-256 digests of the files are fbff21f45ff748365062a5e36fb2d72558cad82a507a6f357f320b4fcdf07760 Crypt-SelfCertificate-1.01.tar.gz 27b2d2d3174ad771474fff2521f5084ec231e9218ea8c832515aef1cbd5897bc lib/Crypt/SelfCertificate/sample/validate.p12 9fdfa7d69b034b77d4510cda567e8da1e486ca81c7daaadc5732a45c41d71991 Crypt-SelfCertificate-1.05.tar.gz 27b2d2d3174ad771474fff2521f5084ec231e9218ea8c832515aef1cbd5897bc lib/Crypt/SelfCertificate/sample/cert7.pem | |
| Title | Crypt::SelfCertificate versions from 1.01 through 1.05 for Perl contains malware which executes Python code from an obfuscated URL | |
| Weaknesses | CWE-506 | |
| References |
|
Subscriptions
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MITRE
Status: PUBLISHED
Assigner: CPANSec
Published:
Updated: 2026-09-22T18:21:23.728Z
Reserved: 2026-09-22T16:29:23.694Z
Link: CVE-2026-95831
Vulnrichment
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NVD
Status : Received
Published: 2026-09-22T19:17:00.227
Modified: 2026-09-22T19:17:00.227
Link: CVE-2026-95831
Redhat
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OpenCVE Enrichment
No data.
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CWE-506
Embedded Malicious Code