CVE-2018-17175

Name: CVE-2018-17175
Creator: NVD / NIST
Published: 2018-09-18T17:29:01.867+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

UnknownEPSS 1.86%

Last modified Jun 17, 2026

CVE-2018-17175 is a vulnerability of currently unknown severity. 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").. EPSS estimates a 1.86% chance of exploitation in the next 30 days.

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").

Metrics

EPSS Probability

1.86%

76.5th percentile

Probability of exploitation in the next 30 days. Learn more

Affected Software

Vendor	Product	Versions
Marshmallow Project	Marshmallow	< 2.15.1
Marshmallow Project	Marshmallow	>= 3.0, < 3.0.0b9

References

https://github.com/marshmallow-code/marshmallow/issues/772Issue Tracking, Third Party Advisory
https://github.com/marshmallow-code/marshmallow/pull/777Third Party Advisory
https://github.com/marshmallow-code/marshmallow/pull/782Third Party Advisory
https://github.com/marshmallow-code/marshmallow/issues/772Issue Tracking, Third Party Advisory
https://github.com/marshmallow-code/marshmallow/pull/777Third Party Advisory
https://github.com/marshmallow-code/marshmallow/pull/782Third Party Advisory

Timeline

Published: Sep 18, 2018
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2018-17175?

How severe is CVE-2018-17175?

Severity scoring for CVE-2018-17175 is pending analysis. The EPSS model estimates a 1.86% probability of exploitation in the next 30 days.

How do I fix CVE-2018-17175?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2018-17175?

Run a free Strix scan to check your systems for this vulnerability.

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Source: NVD / NIST