{"cve":"CVE-2025-68480","nvd":{"published":"2025-12-22T22:16:09.457","modified":"2026-10-19T22:10:00.130","status":"Deferred","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.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L","score":5.3},"cwes":["CWE-405"],"references":["https://github.com/marshmallow-code/marshmallow/commit/d24a0c9df061c4daa92f71cf85aca25b83eee508","https://github.com/marshmallow-code/marshmallow/security/advisories/GHSA-428g-f7cq-pgp5"],"products":[],"source":"nvd","synced_at":"2026-10-21T03:43:09.190223697+00:00"},"epss":{"cve":"CVE-2025-68480","score":0.00296,"percentile":0.22056,"date":"2026-10-25"},"kev":null,"osv":[{"id":"GHSA-428g-f7cq-pgp5","url":"https://osv.dev/vulnerability/GHSA-428g-f7cq-pgp5","summary":"Marshmallow has DoS in Schema.load(many)","modified":"2026-09-10T03:50:31.208550852Z","packages":[{"ecosystem":"PyPI","name":"marshmallow","purl":"pkg:pypi/marshmallow","ranges":[">=3.0.0rc1 <3.26.2"],"fixed":["3.26.2"]},{"ecosystem":"PyPI","name":"marshmallow","purl":"pkg:pypi/marshmallow","ranges":[">=4.0.0 <4.1.2"],"fixed":["4.1.2"]}]},{"id":"PYSEC-2026-1605","url":"https://osv.dev/vulnerability/PYSEC-2026-1605","summary":"Marshmallow has DoS in Schema.load(many)","modified":"2026-07-07T17:46:15.412219531Z","packages":[{"ecosystem":"PyPI","name":"marshmallow","purl":"pkg:pypi/marshmallow","ranges":[">=3.0.0rc1 <3.26.2",">=4.0.0 <4.1.2"],"fixed":["3.26.2","4.1.2"]}]}],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}