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CVE-2025-68480
Good to know:
Date: December 22, 2025
Marshmallow is a lightweight library for converting complex objects to and from simple Python datatypes. In versions from 3.0.0rc1 to before 3.26.2 and from 4.0.0 to before 4.1.2, Schema.load(data, many=True) is vulnerable to denial of service attacks. A moderately sized request can consume a disproportionate amount of CPU time. This issue has been patched in version 3.26.2 and 4.1.2.
Severity Score
Related Resources (5)
Severity Score
Weakness Type (CWE)
Asymmetric Resource Consumption (Amplification)
CWE-405Top Fix
Upgrade Version
Upgrade to version marshmallow - 3.26.2;marshmallow - 4.1.2;https://github.com/marshmallow-code/marshmallow.git - 4.1.2;https://github.com/marshmallow-code/marshmallow.git - 3.26.2
CVSS v3.1
| Base Score: |
|
|---|---|
| Attack Vector (AV): | NETWORK |
| Attack Complexity (AC): | LOW |
| Privileges Required (PR): | NONE |
| User Interaction (UI): | NONE |
| Scope (S): | UNCHANGED |
| Confidentiality (C): | NONE |
| Integrity (I): | NONE |
| Availability (A): | LOW |