CVE-2025-11468

EPSS 0.05%

Folding email comments of unfoldable characters doesn't preserve parenthesis

Published: 1/20/2026Modified: 5/16/2026

Description

When folding a long comment in an email header containing exclusively unfoldable characters, the parenthesis would not be preserved. This could be used for injecting headers into email messages where addresses are user-controlled and not sanitized.

Affected packages (9)

Bitnami/libpythonfrom 0, < 3.10.20, >= 3.11.0, < 3.11.15, >= 3.12.0, < 3.12.13, >= 3.13.0, < 3.13.12, >= 3.14.0, < 3.14.3
Bitnami/pythonfrom 0, < 3.10.20, >= 3.11.0, < 3.11.15, >= 3.12.0, < 3.12.13, >= 3.13.0, < 3.13.12, >= 3.14.0, < 3.14.3
Bitnami/python-minfrom 0, < 3.10.20, >= 3.11.0, < 3.11.15, >= 3.12.0, < 3.12.13, >= 3.13.0, < 3.13.12, >= 3.14.0, < 3.14.3
Debian/pypy3from 0
Debian/python3.11from 0, < 3.11.2-6+deb12u7
Debian/python3.13from 0, < 3.13.5-2+deb13u1
Debian/python3.14from 0, < 3.14.3-1
Debian/python3.9from 0, < 3.9.2-1+deb11u5
Debian/python3.9from 0, < 3.9.2-1+deb11u5

CVSS scores

Source	Version	Severity	Vector
osv	CVSS 4.0	—	CVSS:4.0/AV:N/AC:L/AT:P/PR:H/UI:P/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

Description

Affected packages (9)

CVSS scores

References (11)