Every CVESearch/Get API key

CVE-2026-93012

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

9.8 CriticalFix available

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.

Attack profile

How easy it is to exploit

Attack vector
Network
Complexity
Low
Privileges needed
None
User interaction
None

What an attacker can affect

Confidentiality
High
Integrity
High
Availability
High

Exploit likelihood

0.60%Up 0.4 points since Sep 22, 2026
90%50%10%1%

What each source reports

CVE List Score used9.8

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

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.

Record
CVE-2026-93012
CVSS 3.1
9.8 CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Weakness
CWE-78
Updated
2026-11-02
EUVDEUVD-2026-840069.8

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.

Record
EUVD-2026-84006
CVSS 3.1
9.8 CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Updated
2026-11-02
GitHub AdvisoriesGHSA-j6jw-3jf9-6hc79.8

Email::Sender::Transport::Sendmail versions before 2.602 for Perl allow arbitrary command...

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.

Record
GHSA-j6jw-3jf9-6hc7
CVSS 3.1
9.8 CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Weakness
CWE-78
Updated
2026-11-02
NVD9.8

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.

Record
CVE-2026-93012
CVSS 3.1
9.8 CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Weakness
CWE-78
Updated
2026-11-02
OSV9.8

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

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.

Record
CVE-2026-93012
CVSS 3.1
9.8 CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Weakness
CWE-78
Updated
2026-11-07
OSVUBUNTU-CVE-2026-930129.8

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.

Record
UBUNTU-CVE-2026-93012
CVSS 3.1
9.8 CriticalCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Updated
2026-11-02
OSVopenSUSE-SU-2026:12466-1No score

perl-Email-Sender-2.603.0-1.1 on GA media

These are all security issues fixed in the perl-Email-Sender-2.603.0-1.1 package on the GA media of openSUSE Tumbleweed.

Record
openSUSE-SU-2026:12466-1
Updated
2026-11-07

Affected packages

Affected packages
PackageAffectedFixed
libemail-sender-perl
Ubuntu:16.04:LTS
All versions, plus listed versions
1.300018-11.300021-1
None known
libemail-sender-perl
Ubuntu:18.04:LTS
All versions, plus listed versions
1.300031-1
None known
libemail-sender-perl
Ubuntu:20.04:LTS
All versions, plus listed versions
1.300031-21.300034-1
None known
libemail-sender-perl
Ubuntu:22.04:LTS
All versions, plus listed versions
1.300035-12.500-1
None known
libemail-sender-perl
Ubuntu:24.04:LTS
All versions, plus listed versions
2.600-12.601-1
None known
libemail-sender-perl
Ubuntu:26.10
All versions, plus listed versions
2.601-1
None known
libemail-sender-perl
Ubuntu:26.04:LTS
All versions, plus listed versions
2.601-1
None known
perl-Email-Sender
openSUSE:Tumbleweed
before 2.603.0-1.1
2.603.0-1.1

History

History
RecordedChangedSources
affected, aliases, facts, referencesOSV
factsOSV
first indexedCVE List, EUVD, GitHub Advisories, NVD, OSV

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2026-93012 is a critical vulnerability (CVSS 9.8) in libemail-sender-perl, published September 21, 2026. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 0.60%, the 49th percentile. Fixed in perl-Email-Sender 2.603.0-1.1.

References

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