CVE catalog
CVE-2025-68480
Python marshmallow vulnerabilities
- Severity
- Medium · CVSS 6.5
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H - Published
- Source
- [NVD] · [CVE record]
- EPSS
- 0.30% · Oct 25, 2026
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.
Vulnerable and fixed packages
Distribution-reported package versions and fixes. These do not depend on matching against the OpenFactory package catalog.
| Distribution | Package | Release | Version | Status |
|---|---|---|---|---|
| Debian | python-marshmallow | sid | 3.26.2-0.2 | fixed |
| Debian | python-marshmallow | forky | 3.26.2-0.2 | fixed |
| Debian | python-marshmallow | trixie | 3.26.2-0+deb13u1 | fixed |
| Debian | python-marshmallow | bookworm | 3.18.0-1 | vulnerable |
| Ubuntu | python-marshmallow | noble | Not reported | vulnerable |
| Ubuntu | python-marshmallow | noble | 3.20.1-1.1ubuntu0.1~esm1 | fixed |
| Ubuntu | python3-marshmallow | noble | 3.20.1-1.1ubuntu0.1~esm1 | fixed |
| Ubuntu | python3-marshmallow-doc | noble | 3.20.1-1.1ubuntu0.1~esm1 | fixed |
| PyPI | marshmallow | Not reported | 4.1.2 | fixed |
| PyPI | marshmallow | Not reported | 4.1.2 | fixed |
| PyPI | marshmallow | Not reported | 4.1.2 | fixed |
| PyPI | marshmallow | Not reported | 3.26.2 | fixed |
| Opensuse | python-marshmallow | leap 16.0 | 3.20.2-160000.3.1 | fixed |
| Opensuse | python-marshmallow | tumbleweed | 3.26.2-1.1 | fixed |
| Suse | python-marshmallow | linux enterprise server 16.0 | 3.20.2-160000.3.1 | fixed |
| Suse | python-marshmallow | linux enterprise server for sap applications 16.0 | 3.20.2-160000.3.1 | fixed |
| Suse | python-marshmallow | linux enterprise module for public cloud 15 sp4 | 3.20.2-150400.9.10.1 | fixed |
| Suse | python-marshmallow | linux enterprise module for public cloud 15 sp5 | 3.20.2-150400.9.10.1 | fixed |
| Suse | python-marshmallow | linux enterprise module for public cloud 15 sp6 | 3.20.2-150400.9.10.1 | fixed |
| Suse | python-marshmallow | linux enterprise module for public cloud 15 sp7 | 3.20.2-150400.9.10.1 | fixed |
| Opensuse | python-marshmallow | leap 15.6 | 3.20.2-150400.9.10.1 | fixed |
Fixed-version evidence
| Distribution | Package | Type | Release | Fixed version | Urgency | Origin | Bugs |
|---|---|---|---|---|---|---|---|
| Debian | python-marshmallow | source | sid | 3.26.2-0.1 | not yet assigned | Not reported | [1123888] |
| Debian | python-marshmallow | source | forky | 3.26.2-0.1 | not yet assigned | Not reported | [1123888] |
| Debian | python-marshmallow | source | trixie | 3.26.2-0+deb13u1 | not yet assigned | Not reported | [1123888] |
| Debian | python-marshmallow | source | bookworm | (unfixed) | not yet assigned | Not reported | [1123888] |
| Ubuntu | python-marshmallow | deb | noble | 3.20.1-1.1ubuntu0.1~esm1 | Not reported | Not reported | Not reported |
| Ubuntu | python3-marshmallow | deb | noble | 3.20.1-1.1ubuntu0.1~esm1 | Not reported | Not reported | Not reported |
| Ubuntu | python3-marshmallow-doc | deb | noble | 3.20.1-1.1ubuntu0.1~esm1 | Not reported | Not reported | Not reported |
| PyPI | marshmallow | PyPI | Not reported | 4.1.2 | Not reported | GHSA-428G-F7CQ-PGP5 | Not reported |
| PyPI | marshmallow | PyPI | Not reported | 4.1.2 | Not reported | Not reported | Not reported |
| PyPI | marshmallow | PyPI | Not reported | 4.1.2 | Not reported | Not reported | Not reported |
| PyPI | marshmallow | PyPI | Not reported | 3.26.2 | Not reported | Not reported | Not reported |
| Opensuse | python-marshmallow | rpm | leap 16.0 | 3.20.2-160000.3.1 | Not reported | OPENSUSE-SU-2026:20087-1 | Not reported |
| Opensuse | python-marshmallow | rpm | tumbleweed | 3.26.2-1.1 | Not reported | OPENSUSE-SU-2026:10003-1 | Not reported |
| Suse | python-marshmallow | rpm | linux enterprise server 16.0 | 3.20.2-160000.3.1 | Not reported | SUSE-SU-2026:20130-1 | Not reported |
| Suse | python-marshmallow | rpm | linux enterprise server for sap applications 16.0 | 3.20.2-160000.3.1 | Not reported | SUSE-SU-2026:20130-1 | Not reported |
| Suse | python-marshmallow | rpm | linux enterprise module for public cloud 15 sp4 | 3.20.2-150400.9.10.1 | Not reported | SUSE-SU-2026:0226-1 | Not reported |
| Suse | python-marshmallow | rpm | linux enterprise module for public cloud 15 sp5 | 3.20.2-150400.9.10.1 | Not reported | SUSE-SU-2026:0226-1 | Not reported |
| Suse | python-marshmallow | rpm | linux enterprise module for public cloud 15 sp6 | 3.20.2-150400.9.10.1 | Not reported | SUSE-SU-2026:0226-1 | Not reported |
| Suse | python-marshmallow | rpm | linux enterprise module for public cloud 15 sp7 | 3.20.2-150400.9.10.1 | Not reported | SUSE-SU-2026:0226-1 | Not reported |
| Opensuse | python-marshmallow | rpm | leap 15.6 | 3.20.2-150400.9.10.1 | Not reported | SUSE-SU-2026:0226-1 | Not reported |
Notes
[bookworm] python-marshmallow: Minor issue
OpenFactory catalog packages
[Debian 12 (Bookworm)]
- [python3-marshmallow]Affected
Source package: [python-marshmallow]
Details (2)
3.18.0-1· all · bookwormAffected
usn · python-marshmallow · debian · bookworm; usn · python-marshmallow · debian · 12
3.18.0-1· all · bookwormAffected
usn · python-marshmallow · debian · bookworm; usn · python-marshmallow · debian · 12
- [python3-marshmallow-doc]Affected
Source package: [python-marshmallow]
Details (2)
3.18.0-1· all · bookwormAffected
usn · python-marshmallow · debian · bookworm; usn · python-marshmallow · debian · 12
3.18.0-1· all · bookwormAffected
usn · python-marshmallow · debian · bookworm; usn · python-marshmallow · debian · 12
[openSUSE Tumbleweed]
- [python313-marshmallow]Unknown
Source package: [python-marshmallow]
Details (1)
4.3.0-1.2· noarch · tumbleweedUnknown · Fixed:
3.26.2-1.1Version impact unknown
usn · python-marshmallow · opensuse · tumbleweed
- [python314-marshmallow]Unknown
Source package: [python-marshmallow]
Details (1)
4.3.0-1.2· noarch · tumbleweedUnknown · Fixed:
3.26.2-1.1Version impact unknown
usn · python-marshmallow · opensuse · tumbleweed
- [python-marshmallow-doc]Unknown
Source package: [python-marshmallow]
Details (1)
4.3.0-1.2· noarch · tumbleweedUnknown · Fixed:
3.26.2-1.1Version impact unknown
usn · python-marshmallow · opensuse · tumbleweed
[Debian 13 (Trixie)]
- [python3-marshmallow]Fixed
Source package: [python-marshmallow]
Details (2)
3.26.2-0+deb13u1· all · trixieFixed · Fixed:
3.26.2-0+deb13u1usn · python-marshmallow · debian · 13
3.26.2-0+deb13u1· all · trixieFixed · Fixed:
3.26.2-0+deb13u1usn · python-marshmallow · debian · 13
- [python3-marshmallow-doc]Fixed
Source package: [python-marshmallow]
Details (2)
3.26.2-0+deb13u1· all · trixieFixed · Fixed:
3.26.2-0+deb13u1usn · python-marshmallow · debian · 13
3.26.2-0+deb13u1· all · trixieFixed · Fixed:
3.26.2-0+deb13u1usn · python-marshmallow · debian · 13
Observed:
References
- [https://ftp.suse.com/pub/projects/security/]
- [https://nvd.nist.gov/vuln/detail/CVE-2025-68480]
- [https://osv.dev/vulnerability/DEBIAN-CVE-2025-68480]
- [https://osv.dev/vulnerability/GHSA-428g-f7cq-pgp5]
- [https://osv.dev/vulnerability/SUSE-SU-2026:0226-1]
- [https://osv.dev/vulnerability/SUSE-SU-2026:20130-1]
- [https://osv.dev/vulnerability/openSUSE-SU-2026:10003-1]
- [https://osv.dev/vulnerability/openSUSE-SU-2026:20087-1]
- [https://security-tracker.debian.org/tracker/CVE-2025-68480]
- [https://security.access.redhat.com/data/csaf/v2/vex/2025/cve-2025-68480.json]
- [https://ubuntu.com/security/notices/USN-8225-1]
- [https://wid.cert-bund.de/.well-known/csaf/white/2026/wid-sec-w-2026-2451.json]
[CERT-Bund public advisories] · [Debian Security Tracker] · [FIRST EPSS] · [National Vulnerability Database (NVD)] · [OSV Package Vulnerability Database] · [Red Hat security advisories and VEX] · [SUSE security advisories and VEX] · [Ubuntu Security Notices (USN)]