CVE-2025-1795

Description

During an address list folding when a separating comma ends up on a folded line and that line is to be unicode-encoded then the separator itself is also unicode-encoded. Expected behavior is that the separating comma remains a plan comma. This can result in the address header being misinterpreted by some mail servers.

How to fix CVE-2025-1795

To remediate CVE-2025-1795, upgrade the affected package to a fixed version below.

• Bitnami/libpython—upgrade to 3.9.23 or later
• —upgrade to 3.9.23 or later
• —upgrade to 3.9.23 or later
• —upgrade to 7.3.5+dfsg-2+deb11u5 or later
• —upgrade to 3.11.2-6+deb12u6 or later
• —upgrade to 3.13.0~b1-1 or later
• —upgrade to 3.9.2-1+deb11u3 or later

Is CVE-2025-1795 being exploited?

Low — EPSS is 0.8%, meaning exploitation activity has not been observed at scale.

Affected packages (7)

• from 0, < 3.9.23, >= 3.10.0, < 3.10.17, >= 3.11.0, < 3.11.9, >= 3.12.0, < 3.12.3
• from 0, < 3.9.23, >= 3.10.0, < 3.10.17, >= 3.11.0, < 3.11.9, >= 3.12.0, < 3.12.3
• from 0, < 3.9.23, >= 3.10.0, < 3.10.17, >= 3.11.0, < 3.11.11, >= 3.12.0, < 3.12.8
• from 0, < 7.3.5+dfsg-2+deb11u5
• from 0, < 3.11.2-6+deb12u6
• from 0, < 3.13.0~b1-1
• from 0, < 3.9.2-1+deb11u3

CVSS scores

References (12)

• ADVISORYsecurity-tracker.debian.org/tracker/CVE-2025-1795
• WEBgithub.com/python/cpython/commit/09fab93c3d857496c0bd162797fab816c311ee48
• WEBgithub.com/python/cpython/commit/70754d21c288535e86070ca7a6e90dcb670b8593
• WEBgithub.com/python/cpython/commit/9148b77e0af91cdacaa7fe3dfac09635c3fe9a74