{"id":"UBUNTU-CVE-2020-36049","details":"socket.io-parser before 3.4.1 allows attackers to cause a denial of service (memory consumption) via a large packet because a concatenation approach is used.","modified":"2026-01-20T17:18:44.362989Z","published":"2021-01-08T00:15:00Z","upstream":["CVE-2020-36049"],"references":[{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2020-36049"},{"type":"REPORT","url":"https://blog.caller.xyz/socketio-engineio-dos/"},{"type":"REPORT","url":"https://github.com/bcaller/kill-engine-io"},{"type":"REPORT","url":"https://github.com/socketio/socket.io-parser/commit/dcb942d24db97162ad16a67c2a0cf30875342d55"},{"type":"REPORT","url":"https://www.cve.org/CVERecord?id=CVE-2020-36049"}],"affected":[{"package":{"name":"node-socket.io-parser","ecosystem":"Ubuntu:18.04:LTS","purl":"pkg:deb/ubuntu/node-socket.io-parser@2.3.1-1?arch=source&distro=bionic"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["2.3.1-1"],"ecosystem_specific":{"binaries":[{"binary_name":"node-socket.io-parser","binary_version":"2.3.1-1"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2020/UBUNTU-CVE-2020-36049.json"}},{"package":{"name":"node-socket.io-parser","ecosystem":"Ubuntu:20.04:LTS","purl":"pkg:deb/ubuntu/node-socket.io-parser@3.4.0-1?arch=source&distro=focal"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["3.3.0-1","3.4.0-1"],"ecosystem_specific":{"binaries":[{"binary_name":"node-socket.io-parser","binary_version":"3.4.0-1"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2020/UBUNTU-CVE-2020-36049.json"}},{"package":{"name":"node-socket.io-parser","ecosystem":"Ubuntu:22.04:LTS","purl":"pkg:deb/ubuntu/node-socket.io-parser@4.1.2+~3.0.0-1?arch=source&distro=jammy"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["4.0.2-1","4.1.1+~3.0.0-1","4.1.2+~3.0.0-1"],"ecosystem_specific":{"binaries":[{"binary_name":"node-socket.io-parser","binary_version":"4.1.2+~3.0.0-1"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2020/UBUNTU-CVE-2020-36049.json"}},{"package":{"name":"node-socket.io-parser","ecosystem":"Ubuntu:24.04:LTS","purl":"pkg:deb/ubuntu/node-socket.io-parser@4.2.1+~3.1.0-3?arch=source&distro=noble"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["4.2.1+~3.1.0-3"],"ecosystem_specific":{"binaries":[{"binary_name":"node-socket.io-parser","binary_version":"4.2.1+~3.1.0-3"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2020/UBUNTU-CVE-2020-36049.json"}},{"package":{"name":"node-socket.io-parser","ecosystem":"Ubuntu:25.10","purl":"pkg:deb/ubuntu/node-socket.io-parser@4.2.1+~3.1.0-3?arch=source&distro=questing"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["4.2.1+~3.1.0-3"],"ecosystem_specific":{"binaries":[{"binary_name":"node-socket.io-parser","binary_version":"4.2.1+~3.1.0-3"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2020/UBUNTU-CVE-2020-36049.json"}}],"schema_version":"1.7.3","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"}]}