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WS-2022-0316
Published:May 15, 2026
Updated:May 15, 2026
dparse versions prior to 0.5.2 contain a regular expression that is vulnerable to ReDoS (Regular Expression Denial of Service). All users parsing index server URLs with dparse are impacted by this vulnerability.
Affected Packages
pipenv (CONDA):
Affected version(s) >=2020.5.28 <2022.10.4
Fix Suggestion:
Update to version 2022.10.4
dparse (CONDA):
Affected version(s) >=0.4.1 <0.5.2
Fix Suggestion:
Update to version 0.5.2
dparse (PYTHON):
Affected version(s) >=0.1.0 <0.5.2
Fix Suggestion:
Update to version 0.5.2
pipenv (PYTHON):
Affected version(s) >=2020.5.28 <2022.10.4
Fix Suggestion:
Update to version 2022.10.4
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CVSS v4
Base Score:
8.7
Attack Vector
NETWORK
Attack Complexity
LOW
Attack Requirements
NONE
Privileges Required
NONE
User Interaction
NONE
Vulnerable System Confidentiality
NONE
Vulnerable System Integrity
NONE
Vulnerable System Availability
HIGH
Subsequent System Confidentiality
NONE
Subsequent System Integrity
NONE
Subsequent System Availability
NONE
CVSS v3
Base Score:
7.5
Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
NONE
Integrity
NONE
Availability
HIGH