{"id":"GHSA-9mcr-873m-xcxp","summary":"Tungstenite allows remote attackers to cause a denial of service","details":"The Tungstenite crate through 0.20.0 for Rust allows remote attackers to cause a denial of service (minutes of CPU consumption) via an excessive length of an HTTP header in a client handshake. The length affects both how many times a parse is attempted (e.g., thousands of times) and the average amount of data for each parse attempt (e.g., millions of bytes).","aliases":["CVE-2023-43669","RUSTSEC-2023-0065"],"modified":"2026-09-10T03:49:58.067916445Z","published":"2023-09-21T06:30:25Z","database_specific":{"cwe_ids":["CWE-400"],"severity":"HIGH","github_reviewed":true,"github_reviewed_at":"2023-09-21T17:18:59Z","nvd_published_at":"2023-09-21T06:15:13Z"},"references":[{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2023-43669"},{"type":"WEB","url":"https://github.com/snapview/tungstenite-rs/issues/376"},{"type":"WEB","url":"https://github.com/github/advisory-database/pull/2752"},{"type":"WEB","url":"https://github.com/snapview/tungstenite-rs/pull/379"},{"type":"WEB","url":"https://github.com/snapview/tungstenite-rs/commit/8b3ecd3cc0008145ab4bc8d0657c39d09db8c7e2"},{"type":"WEB","url":"https://security-tracker.debian.org/tracker/CVE-2023-43669"},{"type":"WEB","url":"https://rustsec.org/advisories/RUSTSEC-2023-0065.html"},{"type":"WEB","url":"https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/TT7SF6CQ5VHAGFLWNXY64NFSW4WIWE7D"},{"type":"WEB","url":"https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/THK6G6CD4VW6RCROWUV2C4HSINKK3XAK"},{"type":"WEB","url":"https://lists.fedoraproject.org/archives/list/package-announce@lists.fedoraproject.org/message/R77EUWPZVP5WSMNXUXUDNHR7G7OI5NGM"},{"type":"WEB","url":"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/TT7SF6CQ5VHAGFLWNXY64NFSW4WIWE7D"},{"type":"WEB","url":"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/THK6G6CD4VW6RCROWUV2C4HSINKK3XAK"},{"type":"WEB","url":"https://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/R77EUWPZVP5WSMNXUXUDNHR7G7OI5NGM"},{"type":"PACKAGE","url":"https://github.com/snapview/tungstenite-rs"},{"type":"ADVISORY","url":"https://github.com/advisories/GHSA-9mcr-873m-xcxp"},{"type":"WEB","url":"https://cwe.mitre.org/data/definitions/407.html"},{"type":"WEB","url":"https://crates.io/crates/tungstenite/versions"},{"type":"WEB","url":"https://bugzilla.suse.com/show_bug.cgi?id=1215563"},{"type":"WEB","url":"https://bugzilla.redhat.com/show_bug.cgi?id=2240110"}],"affected":[{"package":{"name":"tungstenite","ecosystem":"crates.io","purl":"pkg:cargo/tungstenite"},"ranges":[{"type":"SEMVER","events":[{"introduced":"0"},{"fixed":"0.20.1"}]}],"database_specific":{"last_known_affected_version_range":"\u003c= 0.20.0","source":"https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2023/09/GHSA-9mcr-873m-xcxp/GHSA-9mcr-873m-xcxp.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H"}]}