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CVE-2025-6075

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

Published: Oct 31, 2025Updated: Jul 31, 2026 Sources: CVE List NVD BDUCWE-400
5.5MEDIUM
NVD MITRE
EPSS Score
0.1%
Top 96.3%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Patch Available
Self-Check
OpenVAS

Description

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

No summary for this CVE yet.

CVSS Vector Breakdown

AV:LAC:LPR:LUI:NS:UC:NI:NA:H
Exploitability
AV:LAttack Vector
Local
AC:LAttack Complexity
Low
PR:LPrivileges Required
Low
UI:NUser Interaction
None
Scope
S:UScope
Unchanged
Impact
C:NConfidentiality
None
I:NIntegrity
None
A:HAvailability
High
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Weaknesses

CWE-400

Affected Products

Red Hat Inc.
commercial·USaka red hat
Red Hat Enterprise LinuxOn-premOS
Operating Systems / linux-distro
OpenShift Dev SpacesOn-prem
Operating Systems / linux-distro
OpenShift AIOn-prem
Operating Systems / linux-distro
Red Hat Enterprise Linux AIOn-prem
Operating Systems / linux-distro
Red Hat Ceph StorageOn-prem
Operating Systems / linux-distro
Red Hat DiscoveryOn-prem
Operating Systems / linux-distro
Red Hat Update InfrastructureOn-prem
Operating Systems / linux-distro
Python Software Foundation
oss-project·USaka psf
CPython
OSS Libraries
PythonLibraryLibrary
OSS Libraries
python
oss-project·US
pythonLibraryLibrary
OSS Libraries
ООО «Ред Софт»
commercial·RUaka red soft
РЕД ОСOn-premOS
Operating Systems / linux-distro
АО «СберТех»
commercial·RUaka ao sbertech, сбертех
Platform V SberLinux OS ServerOn-premOS
Operating Systems / linux-distro

Exploitability

Official Patch Available
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Attack Graph

Products CVE Techniques Tactics

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MITRE ATT&CK

1 technique
Impact
View detailed technique mapping

References

https://github.com/python/cpython/issues/136065
github.com
https://mail.python.org/archives/list/security-announce@python.org/thread/IUP5QJ6D4KK6ULHOMPC7DPNKRYQTQNLA/
mail.python.org
https://github.com/python/cpython/commit/2e6150adccaaf5bd95d4c19dfd04a36e0b325d8c
github.com
and 9 more references View all →

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