Description (CNA)
body-parser is body parsing middleware for Node.js and Express. In versions before 1.20.9 and in versions from 2.0.0 before 2.4.0, a single request can crash any application using body-parser with default options. When a request carries a Content-Encoding such as gzip, body-parser pipes it into a decompression stream and, after reading the body, leaves that stream with no error listener. A payload of one valid compressed frame followed by trailing bytes decodes and the application responds normally, but the trailing bytes then reach the already-finished decoder, which emits an error that is re-thrown as an uncaught exception and terminates the process. No matching route is required because body parsing runs before routing, so any endpoint that parses a body is affected. The issue is fixed in body-parser 2.4.0 and 1.20.9, and users should upgrade to one of those versions or later. As a workaround, disable request-body inflation (set the body-parser inflate option to false) so encoded requests are rejected before any decompression stream is created.
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| body-parser / body-parser | affected 2.0.0 before 2.4.0; unaffected 2.4.0; affected 0 before 1.20.9; unaffected 1.20.9 |
CWE
CWE-248
References
- https://github.com/expressjs/body-parser/security/advisories/GHSA-27r3-jxmh-p828
- https://cna.openjsf.org/security-advisories.html
ADP enrichment
No English description supplied.
No references supplied.