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cpython: POP3 command injection in user-controlled commands

🗓️ 30 Mar 2026 11:02:34Reported by RedHatType 
redhat
 redhat🔗 access.redhat.com👁 11 Views

A flaw in Python poplib allows control characters in input to inject extra POP3 commands.

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OSOS VersionArchitecturePackagePackage VersionFilename
Red Hat Enterprise Linux6.10i686python0:2.6.6-70.el6_10.2python-0:2.6.6-70.el6_10.2.i686.rpm
Red Hat Enterprise Linux6.10s390xpython0:2.6.6-70.el6_10.2python-0:2.6.6-70.el6_10.2.s390x.rpm
Red Hat Enterprise Linux6.10x86_64python0:2.6.6-70.el6_10.2python-0:2.6.6-70.el6_10.2.x86_64.rpm
Red Hat Enterprise Linux6.10i686python-debuginfo0:2.6.6-70.el6_10.2python-debuginfo-0:2.6.6-70.el6_10.2.i686.rpm
Red Hat Enterprise Linux6.10s390python-debuginfo0:2.6.6-70.el6_10.2python-debuginfo-0:2.6.6-70.el6_10.2.s390.rpm
Red Hat Enterprise Linux6.10s390xpython-debuginfo0:2.6.6-70.el6_10.2python-debuginfo-0:2.6.6-70.el6_10.2.s390x.rpm
Red Hat Enterprise Linux6.10x86_64python-debuginfo0:2.6.6-70.el6_10.2python-debuginfo-0:2.6.6-70.el6_10.2.x86_64.rpm
Red Hat Enterprise Linux6.10i686python-devel0:2.6.6-70.el6_10.2python-devel-0:2.6.6-70.el6_10.2.i686.rpm
Red Hat Enterprise Linux6.10s390python-devel0:2.6.6-70.el6_10.2python-devel-0:2.6.6-70.el6_10.2.s390.rpm
Red Hat Enterprise Linux6.10s390xpython-devel0:2.6.6-70.el6_10.2python-devel-0:2.6.6-70.el6_10.2.s390x.rpm
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25 Jun 2026 11:21Current
7High risk
Vulners AI Score7
CVSS 45.9
EPSS0.00315
SSVC
CWE-77
poplib modulecontrol characterscommand injectionserver commands
11