CVE-2025-13466
body-parser is vulnerable to denial of service when url encoding is used
5.3
MEDIUM
CVSS 3.1
EPSS 0.03%
Description
body-parser 2.2.0 is vulnerable to denial of service due to inefficient handling of URL-encoded bodies with very large numbers of parameters. An attacker can send payloads containing thousands of parameters within the default 100KB request size limit, causing elevated CPU and memory usage. This can lead to service slowdown or partial outages under sustained malicious traffic. This issue is addressed in version 2.2.1.
How to fix CVE-2025-13466
To remediate CVE-2025-13466, upgrade the affected package to a fixed version below.
- —upgrade to 2.2.1+~1.19.6-1 or later
- —upgrade to 2.2.1 or later
Is CVE-2025-13466 being exploited?
Low — EPSS is 0.0%, meaning exploitation activity has not been observed at scale.
Affected packages (2)
- from 0, < 2.2.1+~1.19.6-1
- >= 2.2.0, < 2.2.1
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 4.0 | — | CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:L/E:P |
| osv | CVSS 3.1 | MEDIUM5.3 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L |