{"id":"GHSA-27r3-jxmh-p828","revision":"a6a54760cd9e4964bd18ce6e815dac09","records":[{"revision":"a6a54760cd9e4964bd18ce6e815dac09","observedAt":"2026-10-24T13:17:17.793+00:00","statement":{"source":"osv","id":"GHSA-27r3-jxmh-p828","aliases":["CVE-2026-111181"],"title":"body-parser vulnerable to Denial of Service via trailing bytes after a compressed request body","description":"### Impact\n\nA 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.\n\n### Patches\n\nFixed in body-parser 2.4.0 and 1.20.9. Upgrade to one of these versions.\n\n### Workarounds\n\nPass `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.","state":0,"publishedAt":"2026-10-23T20:53:11+00:00","modifiedAt":"2026-10-23T21:00:06.1316137+00:00","affected":[{"ecosystem":"npm","name":"body-parser","ranges":[{"type":"SEMVER","events":[{"kind":"introduced","version":"2.0.0"},{"kind":"fixed","version":"2.4.0"}]}],"versions":[],"rawVersionEvidence":null},{"ecosystem":"npm","name":"body-parser","ranges":[{"type":"SEMVER","events":[{"kind":"introduced","version":"0"},{"kind":"fixed","version":"1.20.9"}]}],"versions":[],"rawVersionEvidence":null}],"metrics":[{"system":"CVSS_V3","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","score":null,"severity":null},{"system":"Publisher rating","vector":null,"score":null,"severity":"HIGH"}],"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"],"sourceUrl":"https://github.com/advisories/GHSA-27r3-jxmh-p828","license":"GitHub Advisory Database · CC-BY-4.0","key":"osv:GHSA-27r3-jxmh-p828","identifiers":["GHSA-27r3-jxmh-p828","CVE-2026-111181"]},"retained":false,"historicalAffected":[]}],"coverage":[]}