CVE-2018-17175 Information

Description

In the marshmallow library before 2.15.1 and 3.x before 3.0.0b9 for Python the schema \only\ option treats an empty list as implying no \only\ option which allows a request that was intended to expose no fields to instead expose all fields (if the schema is being filtered dynamically using the \only\ option and there is a user role that produces an empty value for \only).

CVSS Vector

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

Reference

https://github.com/marshmallow-code/marshmallow/issues/772 https://github.com/marshmallow-code/marshmallow/pull/777 https://github.com/marshmallow-code/marshmallow/pull/782

Attack Complexity

LOW

Privileges Required

NONE

User Interaction Required

NONE

Scope

NONE

Confidentiality Impact

UNCHANGED

Integrity Impact

LOW

Availability Impact

NONE

Base Score

NONE

Base Severity

5.3