On MSWin32 the envelope sender and every recipient go into a single command string, which open() passes to a shell. Every other platform gets the list form, which runs sendmail directly. When the caller supplies no envelope, Email::Sender::Simple takes the recipients from the To and Cc headers and the sender from the From header.
An attacker who controls one of those header addresses runs commands as the sending process.
Analysis
No analysis available yet.
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
Upgrade to Email-Sender 2.602 or later.
Vendor Workaround
For Windows deployments that cannot upgrade to Email-Sender 2.602, use a transport that does not build a command line, such as Email::Sender::Transport::SMTP.
Tracking
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Mon, 21 Sep 2026 17:30:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Description | Email::Sender::Transport::Sendmail versions before 2.602 for Perl allow arbitrary command execution on Windows sending a message whose envelope address reaches the shell in _sendmail_pipe. On MSWin32 the envelope sender and every recipient go into a single command string, which open() passes to a shell. Every other platform gets the list form, which runs sendmail directly. When the caller supplies no envelope, Email::Sender::Simple takes the recipients from the To and Cc headers and the sender from the From header. An attacker who controls one of those header addresses runs commands as the sending process. | |
| Title | Email::Sender::Transport::Sendmail versions before 2.602 for Perl allow arbitrary command execution on Windows sending a message whose envelope address reaches the shell in _sendmail_pipe | |
| Weaknesses | CWE-78 | |
| References |
|
Subscriptions
No data.
MITRE
Status: PUBLISHED
Assigner: CPANSec
Published:
Updated: 2026-09-21T17:19:27.569Z
Reserved: 2026-09-17T14:38:04.344Z
Link: CVE-2026-93012
Vulnrichment
No data.
NVD
Status : Received
Published: 2026-09-21T18:17:16.137
Modified: 2026-09-21T18:17:16.137
Link: CVE-2026-93012
Redhat
No data.
OpenCVE Enrichment
No data.
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CWE-78
Improper Neutralization of Special Elements used in an OS Command ('OS Command Injection')