PT-2025-44651 · Python+9 · Os.Path.Expandvars+9

Published 2025-06-28 · Updated 2026-05-19 · CVE-2025-6075

Positive Technologies (AI Summary)

CVSS v3.1

5.5

Medium

Base vector

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

Name of the Vulnerable Software and Affected Versions versions prior to 2.3

Description A performance degradation can occur when expanding environment variables using the os.path.expandvars() function if the value passed to it is user-controlled. The function os.path.expandvars() is susceptible to this issue.

Recommendations At the moment, there is no information about a newer version that contains a fix for this vulnerability.

DoS

Resource Exhaustion

Weakness Enumeration

CWE-400

Related Identifiers

ALSA-2025:23342

ALSA-2025:23530

ALSA-2026:10950

ALSA-2026:19064

ALSA-2026:19177

AZL-69625

AZL-69628

BDU:2026-05129

BIT-LIBPYTHON-2025-6075

BIT-PYTHON-2025-6075

BIT-PYTHON-MIN-2025-6075

CVE-2025-6075

ECHO-A643-F216-2DC6

OPENSUSE-SU-2025:15742-1

OPENSUSE-SU-2025:15748-1

OPENSUSE-SU-2025:15750-1

OPENSUSE-SU-2025:15760-1

OPENSUSE-SU-2025:15768-1

OPENSUSE-SU-2025:15791-1

OPENSUSE-SU-2025:15792-1

OPENSUSE-SU-2026:20081-1

PSF-2025-13

RHSA-2026:10950

RHSA-2026:19064

RHSA-2026:19177

RHSA-2026:7443

RHSA-2026:7661

RHSA-2026:8822

RHSA-2026:8824

SUSE-SU-2025:21199-1

SUSE-SU-2025:21207-1

SUSE-SU-2025:4221-1

SUSE-SU-2025:4257-1

SUSE-SU-2025:4257-2

SUSE-SU-2025:4258-1

SUSE-SU-2025:4277-1

SUSE-SU-2025:4297-1

SUSE-SU-2025:4352-1

SUSE-SU-2025:4368-1

SUSE-SU-2025:4389-1

SUSE-SU-2025:4398-1

SUSE-SU-2025:4487-1

SUSE-SU-2025_4257-1

SUSE-SU-2025_4297-1

SUSE-SU-2025_4368-1

SUSE-SU-2026:0268-1

SUSE-SU-2026:0337-1

SUSE-SU-2026:0663-1

SUSE-SU-2026:1062-1

SUSE-SU-2026:1107-1

SUSE-SU-2026:1117-1

SUSE-SU-2026:1349-1

SUSE-SU-2026:20125-1

SUSE-SU-2026:20154-1

SUSE-SU-2026:20768-1

SUSE-SU-2026:20796-1

USN-7886-1

USN-7886-2

Affected Products

Almalinux

Centos

Debian

Linuxmint

Red Hat

Red Os

Rocky Linux

Suse

Ubuntu

Os.Path.Expandvars

References · 212

• https://github.com/python/cpython/issues/136065 · Vendor Advisory
• https://github.com/python/cpython/commit/9ab89c026aa9611c4b0b67c288b8303a480fe742 · Patch
• https://github.com/python/cpython/commit/892747b4cf0f95ba8beb51c0d0658bfaa381ebca · Patch
• https://github.com/python/cpython/commit/5dceb93486176e6b4a6d9754491005113eb23427 · Patch
• https://github.com/python/cpython/commit/c8a5f3435c342964e0a432cc9fb448b7dbecd1ba · Patch
• https://github.com/python/cpython/commit/2e6150adccaaf5bd95d4c19dfd04a36e0b325d8c · Patch
• https://github.com/python/cpython/commit/631ba3407e3348ccd56ce5160c4fb2c5dc5f4d84 · Patch
• https://github.com/python/cpython/commit/f029e8db626ddc6e3a3beea4eff511a71aaceb5c · Patch
• https://osv.dev/vulnerability/openSUSE-SU-2025:15760-1 · Vendor Advisory
• https://osv.dev/vulnerability/ALSA-2026:19177 · Vendor Advisory
• https://osv.dev/vulnerability/UBUNTU-CVE-2025-6075 · Vendor Advisory
• https://osv.dev/vulnerability/SUSE-SU-2025:4352-1 · Vendor Advisory
• https://osv.dev/vulnerability/ROOT-OS-DEBIAN-13-CVE-2025-6075 · Vendor Advisory
• https://osv.dev/vulnerability/ALSA-2026:10950 · Vendor Advisory
• https://osv.dev/vulnerability/BIT-python-min-2025-6075 · Vendor Advisory