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cpython: IMAP command injection in user-controlled commands

🗓️ 02 Apr 2026 12:07:33Reported by RedHatType 
redhat
 redhat🔗 access.redhat.com👁 4 Views

In Python imaplib, control characters in user input enable IMAP command injection on the server.

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OSOS VersionArchitecturePackagePackage VersionFilename
Red Hat Enterprise Linux7ppcpython30:3.6.8-21.el7_9.4python3-0:3.6.8-21.el7_9.4.ppc.rpm
Red Hat Enterprise Linux7ppc64python30:3.6.8-21.el7_9.4python3-0:3.6.8-21.el7_9.4.ppc64.rpm
Red Hat Enterprise Linux7ppc64lepython30:3.6.8-21.el7_9.4python3-0:3.6.8-21.el7_9.4.ppc64le.rpm
Red Hat Enterprise Linux7s390python30:3.6.8-21.el7_9.4python3-0:3.6.8-21.el7_9.4.s390.rpm
Red Hat Enterprise Linux7s390xpython30:3.6.8-21.el7_9.4python3-0:3.6.8-21.el7_9.4.s390x.rpm
Red Hat Enterprise Linux7x86_64python30:3.6.8-21.el7_9.4python3-0:3.6.8-21.el7_9.4.x86_64.rpm
Red Hat Enterprise Linux7anypython30:3.6.8-21.el7_9.4.i686python3-0:3.6.8-21.el7_9.4.i686.noarch.rpm
Red Hat Enterprise Linux7ppcpython3-debug0:3.6.8-21.el7_9.4python3-debug-0:3.6.8-21.el7_9.4.ppc.rpm
Red Hat Enterprise Linux7ppc64python3-debug0:3.6.8-21.el7_9.4python3-debug-0:3.6.8-21.el7_9.4.ppc64.rpm
Red Hat Enterprise Linux7ppc64lepython3-debug0:3.6.8-21.el7_9.4python3-debug-0:3.6.8-21.el7_9.4.ppc64le.rpm
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28 Jun 2026 09:35Current
7High risk
Vulners AI Score7
CVSS 45.9
EPSS0.0036
SSVC
CWE-77
pythonimapimaplibcommand injectioncontrol characters
4