CVE-2025-15367

POP3 command injection in user-controlled commands

CVSS 5.9 MEDIUMEPSS 0.3%CWE-77

The poplib module, when passed a user-controlled command, can have additional commands injected using newlines. Mitigation rejects commands containing control characters.

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

Affected products

Python Software Foundation · CPython

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References

https://github.com/python/cpython/commit/b234a2b67539f787e191d2ef19a7cbdce32874e7 https://github.com/python/cpython/issues/143923 https://github.com/python/cpython/pull/143924 https://mail.python.org/archives/list/security-announce@python.org/thread/CBFBOWVGGUJFSGITQCCBZS4GEYYZ7ZNE/