Medium (5.5). EPSS 1.1% chance of exploitation in the next 30 days.
There is a MEDIUM severity vulnerability affecting CPython.
The
email module didn’t properly quote newlines for email headers when
serializing an email message allowing for header injection when an email
is serialized.
Severity
CVSS 3.1
5.5 medium
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:L/I:L/A:L
EPSS
1.1% chance of exploitation in the next 30 days; higher than 65% of CVEs (scores of 2026-10-31)