{"id":"RUSTSEC-2021-0081","summary":"Potential request smuggling capabilities due to lack of input validation","details":"Affected versions of this crate did not properly detect invalid requests that could allow HTTP/1 request smuggling (HRS) attacks when running alongside a vulnerable front-end proxy server. This can result in leaked internal and/or user data, including credentials, when the front-end proxy is also vulnerable.\n\nPopular front-end proxies and load balancers already mitigate HRS attacks so it is recommended that they are also kept up to date; check your specific set up. You should upgrade even if the front-end proxy receives exclusively HTTP/2 traffic and connects to the back-end using HTTP/1; several downgrade attacks are known that can also expose HRS vulnerabilities.","aliases":["CVE-2021-38512","GHSA-8928-2fgm-6x9x"],"modified":"2023-11-08T04:06:27.940101Z","published":"2021-06-16T12:00:00Z","database_specific":{"license":"CC0-1.0"},"references":[{"type":"PACKAGE","url":"https://crates.io/crates/actix-http"},{"type":"ADVISORY","url":"https://rustsec.org/advisories/RUSTSEC-2021-0081.html"}],"affected":[{"package":{"name":"actix-http","ecosystem":"crates.io","purl":"pkg:cargo/actix-http"},"ranges":[{"type":"SEMVER","events":[{"introduced":"0.0.0-0"},{"fixed":"2.2.1"},{"introduced":"3.0.0-0"},{"fixed":"3.0.0-beta.9"}]}],"ecosystem_specific":{"affects":{"arch":[],"functions":[],"os":[]},"affected_functions":null},"database_specific":{"categories":[],"cvss":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N","informational":null,"source":"https://github.com/rustsec/advisory-db/blob/osv/crates/RUSTSEC-2021-0081.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:H/I:N/A:N"}]}