CVE-2025-68480
Publication date 23 December 2025
Last updated 23 December 2025
Ubuntu priority
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.
Status
| Package | Ubuntu Release | Status |
|---|---|---|
| python-marshmallow | 25.10 questing |
Needs evaluation
|
| 25.04 plucky |
Needs evaluation
|
|
| 24.04 LTS noble |
Needs evaluation
|
|
| 22.04 LTS jammy |
Needs evaluation
|
|
| 20.04 LTS focal |
Needs evaluation
|
|
| 18.04 LTS bionic |
Needs evaluation
|
Severity score breakdown
| Parameter | Value |
|---|---|
| Base score |
5.3 · Medium
|
| Attack vector | Network |
| Attack complexity | Low |
| Privileges required | None |
| User interaction | None |
| Scope | Unchanged |
| Confidentiality | None |
| Integrity impact | None |
| Availability impact | Low |
| Vector | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L |
References
Other references
- https://www.cve.org/CVERecord?id=CVE-2025-68480
- https://github.com/marshmallow-code/marshmallow/security/advisories/GHSA-428g-f7cq-pgp5
- https://github.com/marshmallow-code/marshmallow/commit/218d98a785d3bd25dad8880bb07e9cce70340f31 (4.1.2)
- https://github.com/marshmallow-code/marshmallow/commit/70141f4180fb94ced3544cdefdaff89172dd3956 (4.1.2)
- https://github.com/marshmallow-code/marshmallow/commit/36f87877d0e889e682386a0121eabe030cde57b1 (4.1.2)
- https://github.com/marshmallow-code/marshmallow/commit/0356a3f1c307830f8ded56d823abca5611c594c9 (3.26.2)
- https://github.com/marshmallow-code/marshmallow/commit/6d4a17dad54ea9711040c6aa6ba4d59267242a41 (3.26.2)
- https://github.com/marshmallow-code/marshmallow/commit/489a8d421dc7955bb53b89e962d69465fbc5b6af (3.26.2)
- https://github.com/marshmallow-code/marshmallow/commit/d24a0c9df061c4daa92f71cf85aca25b83eee508