{"id":"UBUNTU-CVE-2026-111181","details":"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.","modified":"2026-10-28T17:50:35Z","published":"2026-10-22T15:17:00Z","upstream":["CVE-2026-111181"],"references":[{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2026-111181"},{"type":"REPORT","url":"https://www.cve.org/CVERecord?id=CVE-2026-111181"},{"type":"REPORT","url":"https://cna.openjsf.org/security-advisories.html"},{"type":"REPORT","url":"https://github.com/expressjs/body-parser/security/advisories/GHSA-27r3-jxmh-p828"}],"affected":[{"package":{"name":"node-body-parser","ecosystem":"Ubuntu:16.04:LTS","purl":"pkg:deb/ubuntu/node-body-parser?arch=source&distro=xenial"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.8.1-1"],"ecosystem_specific":{"binaries":[{"binary_name":"node-body-parser","binary_version":"1.8.1-1"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-111181.json"}},{"package":{"name":"node-body-parser","ecosystem":"Ubuntu:18.04:LTS","purl":"pkg:deb/ubuntu/node-body-parser?arch=source&distro=bionic"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.8.1-1","1.8.1-1ubuntu1"],"ecosystem_specific":{"binaries":[{"binary_name":"node-body-parser","binary_version":"1.8.1-1ubuntu1"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-111181.json"}},{"package":{"name":"node-body-parser","ecosystem":"Ubuntu:20.04:LTS","purl":"pkg:deb/ubuntu/node-body-parser?arch=source&distro=focal"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.18.3-2","1.19.0-2"],"ecosystem_specific":{"binaries":[{"binary_name":"node-body-parser","binary_version":"1.19.0-2"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-111181.json"}},{"package":{"name":"node-body-parser","ecosystem":"Ubuntu:22.04:LTS","purl":"pkg:deb/ubuntu/node-body-parser?arch=source&distro=jammy"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.19.0-2","1.19.0-5","1.19.1+~1.19.2-1","1.19.2+~1.19.2-1"],"ecosystem_specific":{"binaries":[{"binary_name":"node-body-parser","binary_version":"1.19.2+~1.19.2-1"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-111181.json"}},{"package":{"name":"node-body-parser","ecosystem":"Ubuntu:24.04:LTS","purl":"pkg:deb/ubuntu/node-body-parser?arch=source&distro=noble"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.20.1+~1.19.2-1","1.20.2+~1.19.5-1","1.20.2+~1.19.5-1build2"],"ecosystem_specific":{"binaries":[{"binary_name":"node-body-parser","binary_version":"1.20.2+~1.19.5-1build2"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-111181.json"}},{"package":{"name":"node-body-parser","ecosystem":"Ubuntu:26.10","purl":"pkg:deb/ubuntu/node-body-parser?arch=source&distro=stonking"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["2.2.2+~1.19.6-1","2.3.0+~1.19.6-1"],"ecosystem_specific":{"binaries":[{"binary_name":"node-body-parser","binary_version":"2.3.0+~1.19.6-1"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-111181.json"}},{"package":{"name":"node-body-parser","ecosystem":"Ubuntu:26.04:LTS","purl":"pkg:deb/ubuntu/node-body-parser?arch=source&distro=resolute"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["1.20.3+~1.19.5-3","2.2.0+~1.19.6-1","2.2.2+~1.19.6-1"],"ecosystem_specific":{"binaries":[{"binary_name":"node-body-parser","binary_version":"2.2.2+~1.19.6-1"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-111181.json"}}],"schema_version":"1.9.2","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"},{"type":"Ubuntu","score":"medium"}]}