Description
The poplib module, when passed a user-controlled command, can have additional commands injected using newlines. Mitigation rejects commands containing control characters.
References (4)
Core 4
Core References
Issue Tracking patch
https://github.com/python/cpython/pull/143924
Issue Tracking issue-tracking
https://github.com/python/cpython/issues/143923
Various Sources vendor-advisory
https://mail.python.org/archives/list/[email protected]/thread/CBFBOWVGGUJFSGITQCCBZS4GEYYZ7ZNE/
Scores
CVSS v4
5.9
EPSS
0.0008
EPSS Percentile
23.6%
CVSS:4.0/AV:N/AC:L/AT:P/PR:H/UI:N/VC:L/VI:H/VA:N/SC:N/SI:N/SA:N
CISA SSVC
Vulnrichment
Exploitation
none
Automatable
no
Technical Impact
total
Details
CWE
CWE-77
Status
published
Products (1)
Python Software Foundation/CPython
< 3.15.0a6
Published
Jan 20, 2026
Tracked Since
Feb 18, 2026