CVE-2025-68480

EUVD-2025-204752
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.
Amplification
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTPrimary
5.3 MEDIUM
NETWORK
LOW
NONE
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
Awaiting analysis
This vulnerability is currently awaiting analysis.
Base Score
CVSS 3.x
EPSS Score
Percentile: 25%
Debian logo
Debian Releases
Debian Product
Codename
python-marshmallow
bookworm
no-dsa
bullseye
postponed
forky
vulnerable
sid
vulnerable
trixie
no-dsa
Ubuntu logo
Ubuntu Releases
Ubuntu Product
Codename
python-marshmallow
bionic
not-affected
focal
Fixed 3.4.0-1ubuntu0.1~esm1
released
jammy
Fixed 3.13.0-1ubuntu0.1~esm1
released
noble
Fixed 3.20.1-1.1ubuntu0.1~esm1
released
plucky
ignored
questing
needed
resolute
Fixed 3.26.1-0.4ubuntu0.1~esm1
released
Common Weakness Enumeration
References
https://github.com/marshmallow-code/marshmallow/commit/d24a0c9df061c4daa92f71cf85aca25b83eee508
https://github.com/marshmallow-code/marshmallow/security/advisories/GHSA-428g-f7cq-pgp5