CVE-2025-6075

MEDIUM5.5EPSS 0.02%

Quadratic complexity in os.path.expandvars() with user-controlled template

Published: 10/31/2025Modified: 5/16/2026

Description

If the value passed to os.path.expandvars() is user-controlled a performance degradation is possible when expanding environment variables.

Bitnami/libpythonfrom 0, < 3.9.25, >= 3.10.0, < 3.10.20, >= 3.11.0, < 3.11.15, >= 3.12.0, < 3.12.13, >= 3.13.0, < 3.13.10, >= 3.14.0, < 3.14.1
Bitnami/pythonfrom 0, < 3.9.25, >= 3.10.0, < 3.10.20, >= 3.11.0, < 3.11.15, >= 3.12.0, < 3.12.13, >= 3.13.0, < 3.13.10, >= 3.14.0, < 3.14.1
Bitnami/python-minfrom 0, < 3.9.25, >= 3.10.0, < 3.10.20, >= 3.11.0, < 3.11.15, >= 3.12.0, < 3.12.13, >= 3.13.0, < 3.13.10, >= 3.14.0, < 3.14.1
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, < 3.14.2-1
Debian/python3.9from 0, < 3.9.2-1+deb11u4

Source	Version	Severity	Vector
osv	CVSS 4.0	—	CVSS:4.0/AV:L/AC:L/AT:P/PR:H/UI:N/VC:N/VI:N/VA:L/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
osv	CVSS 3.1	MEDIUM5.5	CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H