GHSA-27r3-jxmh-p828
Dashboard / Vulnerabilities / GHSA-27r3-jxmh-p828
Summary: body-parser vulnerable to Denial of Service via trailing bytes after a compressed request body
Details: ### Impact A single request can crash any application using `body-parser` with default options. When a request carries a `Content-Encoding` (for example `gzip`), `body-parser` pipes it into a decompression stream and, after reading the body, leaves that stream piped 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 authentication or matching route is required, since parsing runs before routing. ### Patches Fixed in body-parser 2.4.0 and 1.20.9. Upgrade to one of these versions. ### Workarounds Pass `inflate: false` to the body-parser middleware if the application does not need to accept compressed request bodies. This rejects encoded requests before any decompression stream is created.
References: https://github.com/expressjs/body-parser/security/advisories/GHSA-27r3-jxmh-p828, https://nvd.nist.gov/vuln/detail/CVE-2026-111181, https://github.com/expressjs/body-parser/commit/1260c3845f54502a05a87594f09a334786bb34d7, https://github.com/expressjs/body-parser/commit/f7075eae3a84c3473ab4bf0a777da28db208e916, https://cna.openjsf.org/security-advisories.html, https://github.com/expressjs/body-parser, https://github.com/expressjs/body-parser/releases/tag/1.20.9, https://github.com/expressjs/body-parser/releases/tag/v2.4.0
Affected packages
Package
Name: body-parser
Purl: pkg:npm/body-parser
Affected ranges
Type: SEMVER
Events:
