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Python -- imaplib module, when passed a user-controlled command, can have additional commands injected using newlines

Affected packages
0	<=	python310
0	<=	python311
0	<=	python312
0	<=	python313
0	<=	python313t
0	<=	python314

Details

VuXML ID	0be929a5-2e0f-11f1-88c7-00a098b42aeb
Discovery	2026-01-20
Entry	2026-04-01
Modified	2026-04-04

Python Software Foundation Security Developer reports:

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

[source]

References

CVE Name	CVE-2025-15366
URL	https://cveawg.mitre.org/api/cve/CVE-2025-15366