In marshmallow library the schema "only" option treats an empty list as implying no "only" option
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").
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describes (1)
Related CVEs.
| ID | severity | exploitable | ||
|---|---|---|---|---|
| CVE-2018-17175US | medium5.3 | — | ||
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… | ||||
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references
External citations — patches, advisories, analysis.
- https://github.com/marshmallow-codePACKAGE
- https://github.com/marshmallow-code/marshmallow/issues/772WEB
- https://github.com/marshmallow-code/marshmallow/pull/777WEB
- https://github.com/marshmallow-code/marshmallow/pull/782WEB
- https://github.com/pypa/advisory-database/tree/main/vulns/marshmallow/PYSEC-2018-67.yamlWEB
- https://nvd.nist.gov/vuln/detail/CVE-2018-17175ADVISORY
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