CVE-2025-68480 | THREATINT

Description

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.

PUBLISHED Reserved 2025-12-18 | Published 2025-12-22 | Updated 2025-12-22 | Assigner GitHub_M

MEDIUM: 5.3CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L

Problem types

CWE-405: Asymmetric Resource Consumption (Amplification)

Product status

>= 3.0.0rc1, < 3.26.2

affected

>= 4.0.0, < 4.1.2

affected

References

github.com/...mallow/security/advisories/GHSA-428g-f7cq-pgp5

github.com/...ommit/d24a0c9df061c4daa92f71cf85aca25b83eee508

cve.org (CVE-2025-68480)

nvd.nist.gov (CVE-2025-68480)

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