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cpython: POP3 command injection in user-controlled commands

🗓️ 31 Mar 2026 09:11:44Reported by RedHatType 
redhat
 redhat🔗 access.redhat.com👁 9 Views

Poplib in Python permits POP3 command injection via control characters in user input on the server.

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OSOS VersionArchitecturePackagePackage VersionFilename
Red Hat Enterprise Linux9.4aarch64python3.110:3.11.7-1.el9_4.11python3.11-0:3.11.7-1.el9_4.11.aarch64.rpm
Red Hat Enterprise Linux9.4i686python3.110:3.11.7-1.el9_4.11python3.11-0:3.11.7-1.el9_4.11.i686.rpm
Red Hat Enterprise Linux9.4ppc64lepython3.110:3.11.7-1.el9_4.11python3.11-0:3.11.7-1.el9_4.11.ppc64le.rpm
Red Hat Enterprise Linux9.4s390xpython3.110:3.11.7-1.el9_4.11python3.11-0:3.11.7-1.el9_4.11.s390x.rpm
Red Hat Enterprise Linux9.4x86_64python3.110:3.11.7-1.el9_4.11python3.11-0:3.11.7-1.el9_4.11.x86_64.rpm
Red Hat Enterprise Linux9.4aarch64python3.11-debug0:3.11.7-1.el9_4.11python3.11-debug-0:3.11.7-1.el9_4.11.aarch64.rpm
Red Hat Enterprise Linux9.4i686python3.11-debug0:3.11.7-1.el9_4.11python3.11-debug-0:3.11.7-1.el9_4.11.i686.rpm
Red Hat Enterprise Linux9.4ppc64lepython3.11-debug0:3.11.7-1.el9_4.11python3.11-debug-0:3.11.7-1.el9_4.11.ppc64le.rpm
Red Hat Enterprise Linux9.4s390xpython3.11-debug0:3.11.7-1.el9_4.11python3.11-debug-0:3.11.7-1.el9_4.11.s390x.rpm
Red Hat Enterprise Linux9.4x86_64python3.11-debug0:3.11.7-1.el9_4.11python3.11-debug-0:3.11.7-1.el9_4.11.x86_64.rpm
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03 Jul 2026 00:51Current
5.8Medium risk
Vulners AI Score5.8
CVSS 45.9
EPSS0.00315
SSVC
CWE-77
poplib modulepost office protocolcommand injectionuser inputcontrol charactersserver impactpython
9