GHSA-wqch-xfxh-vrr4
body-parser is vulnerable to denial of service when url encoding is used
At a glance
- Published
- Updated
- CVE
- CVE-2025-13466
- CVSS_V3
- CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L
- CVSS_V4
- 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
Description
### Impact 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. ### Patches This issue is addressed in version 2.2.1.
Affected packages
| Package | Versions |
|---|---|
| npm · body-parser | introduced 2.2.0, fixed 2.2.1 |
References
- https://github.com/expressjs/body-parser/security/advisories/GHSA-wqch-xfxh-vrr4 WEB
- https://nvd.nist.gov/vuln/detail/CVE-2025-13466 ADVISORY
- https://github.com/expressjs/body-parser/commit/b204886a6744b0b6d297cd0e849d75de836f3b63 WEB
- https://github.com/expressjs/body-parser PACKAGE
- https://github.com/expressjs/body-parser/releases/tag/v2.2.1 WEB
Sources
| Source | Licence |
|---|---|
| OSV.dev | CC-BY 4.0 — GitHub Advisory Database |