CVE-2025-6075CWE-400denial-of-service

CVE-2025-6075

Medium · published October 31, 2025

CVSS v3.1
5.5
EPSS
0%
Percentile
3.8
In the wild
Unconfirmed
What it is

If the value passed to os.path.expandvars() is user-controlled a

performance degradation is possible when expanding environment

variables.

The record
Technical detail
CVSS v3.1
5.5 · MEDIUM
Vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
CVSS v4.0
Not supplied
EPSS
0.00149 · 3.8th percentile
Weakness
CWE-400 · Uncontrolled Resource Consumption
Published
2025-10-31T21:15Z
Affected products (4)
ProductVersionsFixed in
python/python< 3.9.03.9.0
python/python≥ 3.13.1, < 3.13.113.13.11
python/python≥ 3.14.0, < 3.14.13.14.1
python/pythonall versions—
References (9)
https://github.com/python/cpython/commit/2e6150adccaaf5bd95d4c19dfd04a36e0b325d8c · [email protected]https://github.com/python/cpython/commit/5dceb93486176e6b4a6d9754491005113eb23427 · [email protected]https://github.com/python/cpython/commit/631ba3407e3348ccd56ce5160c4fb2c5dc5f4d84 · [email protected]https://github.com/python/cpython/commit/892747b4cf0f95ba8beb51c0d0658bfaa381ebca · [email protected]https://github.com/python/cpython/commit/9ab89c026aa9611c4b0b67c288b8303a480fe742 · [email protected]https://github.com/python/cpython/commit/c8a5f3435c342964e0a432cc9fb448b7dbecd1ba · [email protected]https://github.com/python/cpython/commit/f029e8db626ddc6e3a3beea4eff511a71aaceb5c · [email protected]https://github.com/python/cpython/issues/136065 · [email protected]https://mail.python.org/archives/list/[email protected]/thread/IUP5QJ6D4KK6ULHOMPC7DPNKRYQTQNLA/ · [email protected]
EPSS history
Timeline
  • 31 OCT 16:41Z
    Quadratic complexity in os.path.expandvars() with user-controlled template
    cvelistv5