CVE-2025-6075

low

Description

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

References

https://mail.python.org/archives/list/[email protected]/thread/IUP5QJ6D4KK6ULHOMPC7DPNKRYQTQNLA/

https://github.com/python/cpython/issues/136065

https://github.com/python/cpython/commit/f029e8db626ddc6e3a3beea4eff511a71aaceb5c

https://github.com/python/cpython/commit/c8a5f3435c342964e0a432cc9fb448b7dbecd1ba

https://github.com/python/cpython/commit/9ab89c026aa9611c4b0b67c288b8303a480fe742

https://github.com/python/cpython/commit/892747b4cf0f95ba8beb51c0d0658bfaa381ebca

https://github.com/python/cpython/commit/631ba3407e3348ccd56ce5160c4fb2c5dc5f4d84

https://github.com/python/cpython/commit/2e6150adccaaf5bd95d4c19dfd04a36e0b325d8c

Details

Source: Mitre, NVD

Published: 2025-10-31

Updated: 2025-11-04

Risk Information

CVSS v2

Base Score: 5

Vector: CVSS2#AV:N/AC:L/Au:N/C:P/I:N/A:N

Severity: Medium

CVSS v3

Base Score: 5.3

Vector: CVSS:3.0/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N

Severity: Medium

CVSS v4

Base Score: 1.8

Vector: 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

Severity: Low

EPSS

EPSS: 0.00013