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.

The remote openSUSE 16 host has a package installed that is affected by a vulnerability as referenced in the openSUSE- SU-2026:20087-1 advisory.

    - CVE-2025-68480: Fixed possible DoS when using Schema.load(data, many=True) (bsc#1255473).

Tenable has extracted the preceding description block directly from the SUSE security advisory.

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

The remote SUSE Linux SLES15 / SLES_SAP15 / openSUSE 15 host has a package installed that is affected by a vulnerability as referenced in the SUSE-SU-2026:0226-1 advisory.

    - CVE-2025-68480: Fixed possible DoS when using Schema.load(data, many=True) (bsc#1255473).

Tenable has extracted the preceding description block directly from the SUSE security advisory.

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available.

  - 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. (CVE-2025-68480)

Note that Nessus relies on the presence of the package as reported by the vendor.

ID	Name	Product	Family	Severity
296565	openSUSE 16 Security Update : python-marshmallow (openSUSE-SU-2026:20087-1)	Nessus	SuSE Local Security Checks	medium
296450	SUSE SLES15 / openSUSE 15 Security Update : python-marshmallow (SUSE-SU-2026:0226-1)	Nessus	SuSE Local Security Checks	medium
279622	Linux Distros Unpatched Vulnerability : CVE-2025-68480	Nessus	Misc.	medium

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CVE-2025-68480

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