{"id":"CVE-2020-36463","aliases":["EUVD-2021-1853","GHSA-jf43-3v8j-qwwr","GHSA-r2x6-vrxx-jgv4","RUSTSEC-2020-0143"],"status":"published","title":"Data races in multiqueue","description":"An issue was discovered in the multiqueue crate through 2020-12-25 for Rust. There are unconditional implementations of Send for InnerSend\u003cRW, T\u003e, InnerRecv\u003cRW, T\u003e, FutInnerSend\u003cRW, T\u003e, and FutInnerRecv\u003cRW, T\u003e.","severity":{"version":"3.1","score":8.1,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"high","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-11","score":0.01098,"percentile":0.6606,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-362","CWE-77"],"published":"2020-12-25T12:00:00Z","modified":"2026-06-17T03:15:32Z","affected":[{"source":"ghsa","ecosystem":"crates.io","package":"multiqueue","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"last_affected":"0.3.2"}]}]},{"source":"ghsa","ecosystem":"crates.io","package":"multiqueue","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"last_affected":"0.3.2"}]}]},{"source":"osv","ecosystem":"crates.io","package":"multiqueue","ranges":[{"type":"SEMVER","events":[{"introduced":"0"},{"last_affected":"0.3.2"}]}]},{"source":"osv","ecosystem":"crates.io","package":"multiqueue","ranges":[{"type":"SEMVER","events":[{"introduced":"0"},{"last_affected":"0.3.2"}]}]},{"source":"osv","ecosystem":"crates.io","package":"multiqueue","ranges":[{"type":"SEMVER","events":[{"introduced":"0.0.0-0"}]}]}],"products":[{"vendor":"multiqueue_project","product":"multiqueue"}],"references":[{"url":"https://rustsec.org/advisories/RUSTSEC-2020-0143.html","tags":["x_refsource_MISC","x_transferred","Exploit","Issue Tracking","Patch","Third Party Advisory","web","advisory"]},{"url":"https://raw.githubusercontent.com/rustsec/advisory-db/main/crates/multiqueue/RUSTSEC-2020-0143.md","tags":["x_refsource_MISC","x_transferred","Third Party Advisory","web"]},{"url":"https://github.com/schets/multiqueue/issues/31","tags":["web","report"]},{"url":"https://github.com/advisories/GHSA-jf43-3v8j-qwwr"},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2020-36463","tags":["advisory"]},{"url":"https://github.com/advisories/GHSA-r2x6-vrxx-jgv4"},{"url":"https://github.com/schets/multiqueue","tags":["package"]},{"url":"https://crates.io/crates/multiqueue","tags":["package"]}],"sources":{"cve":[{"id":"CVE-2020-36463","description":"An issue was discovered in the multiqueue crate through 2020-12-25 for Rust. There are unconditional implementations of Send for InnerSend\u003cRW, T\u003e, InnerRecv\u003cRW, T\u003e, FutInnerSend\u003cRW, T\u003e, and FutInnerRecv\u003cRW, T\u003e.","status":"published","published":"2021-08-08T05:12:58Z","modified":"2024-08-04T17:30:08.204Z","updated_at":"2026-11-02T14:35:54.80237Z"}],"euvd":[{"id":"EUVD-2021-1853","description":"An issue was discovered in the multiqueue crate through 2020-12-25 for Rust. There are unconditional implementations of Send for InnerSend\u003cRW, T\u003e, InnerRecv\u003cRW, T\u003e, FutInnerSend\u003cRW, T\u003e, and FutInnerRecv\u003cRW, T\u003e.","status":"published","published":"2021-08-08T05:12:58Z","modified":"2024-08-04T17:30:08Z","updated_at":"2026-11-03T03:07:02.510914Z"}],"ghsa":[{"id":"GHSA-jf43-3v8j-qwwr","title":"Data races in multiqueue","description":"Affected versions of multiqueue unconditionally implemented `Send` for types used in queue implementations (`InnerSend\u003cRW, T\u003e`, `InnerRecv\u003cRW, T\u003e`, `FutInnerSend\u003cRW, T\u003e`, `FutInnerRecv\u003cRW, T\u003e`). This allows users to send non-Send types to other threads, which can lead to data race bugs or other undefined behavior.\n","status":"published","published":"2021-08-25T20:59:56Z","modified":"2023-06-13T20:04:38Z","cvss":[{"version":"3.1","score":8.1,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"high"}],"cwes":["CWE-362"],"updated_at":"2026-11-02T14:36:53.654352Z"},{"id":"GHSA-r2x6-vrxx-jgv4","title":"Data races in multiqueue","description":"Affected versions of this crate unconditionally implemented Send for types used in queue implementations (InnerSend\u003cRW, T\u003e, InnerRecv\u003cRW, T\u003e, FutInnerSend\u003cRW, T\u003e, FutInnerRecv\u003cRW, T\u003e). This allows users to send non-Send types to other threads, which can lead to data race bugs or other undefined behavior.","status":"published","published":"2021-08-25T20:58:07Z","modified":"2023-06-13T18:34:58Z","cvss":[{"version":"3.1","score":8.1,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"high"}],"cwes":["CWE-77","CWE-362"],"updated_at":"2026-11-02T14:36:53.654352Z"}],"nvd":[{"id":"CVE-2020-36463","description":"An issue was discovered in the multiqueue crate through 2020-12-25 for Rust. There are unconditional implementations of Send for InnerSend\u003cRW, T\u003e, InnerRecv\u003cRW, T\u003e, FutInnerSend\u003cRW, T\u003e, and FutInnerRecv\u003cRW, T\u003e.","status":"published","published":"2021-08-08T06:15:08.043Z","modified":"2026-06-17T03:15:32.75Z","cvss":[{"version":"3.1","score":8.1,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"high","assessor":"primary"},{"version":"2.0","score":6.8,"vector":"AV:N/AC:M/Au:N/C:P/I:P/A:P","level":"medium","assessor":"primary"}],"cwes":["CWE-77"],"updated_at":"2026-11-02T14:06:44.292752Z"}],"osv":[{"id":"GHSA-jf43-3v8j-qwwr","title":"Data races in multiqueue","description":"Affected versions of multiqueue unconditionally implemented `Send` for types used in queue implementations (`InnerSend\u003cRW, T\u003e`, `InnerRecv\u003cRW, T\u003e`, `FutInnerSend\u003cRW, T\u003e`, `FutInnerRecv\u003cRW, T\u003e`). This allows users to send non-Send types to other threads, which can lead to data race bugs or other undefined behavior.\n","status":"published","published":"2021-08-25T20:59:56Z","modified":"2023-11-08T04:03:46.381332Z","cvss":[{"version":"3.1","score":8.1,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"high"}],"cwes":["CWE-362"],"updated_at":"2026-11-02T15:46:50.336262Z"},{"id":"GHSA-r2x6-vrxx-jgv4","title":"Data races in multiqueue","description":"Affected versions of this crate unconditionally implemented Send for types used in queue implementations (InnerSend\u003cRW, T\u003e, InnerRecv\u003cRW, T\u003e, FutInnerSend\u003cRW, T\u003e, FutInnerRecv\u003cRW, T\u003e). This allows users to send non-Send types to other threads, which can lead to data race bugs or other undefined behavior.","status":"published","published":"2021-08-25T20:58:07Z","modified":"2023-11-08T04:03:46.381332Z","cvss":[{"version":"3.1","score":8.1,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"high"}],"cwes":["CWE-362","CWE-77"],"updated_at":"2026-11-02T15:46:55.122811Z"},{"id":"RUSTSEC-2020-0143","title":"Queues allow non-Send types to be sent to other threads, allowing data races","description":"Affected versions of this crate unconditionally implemented `Send` for types used in queue implementations (`InnerSend\u003cRW, T\u003e`, `InnerRecv\u003cRW, T\u003e`, `FutInnerSend\u003cRW, T\u003e`, `FutInnerRecv\u003cRW, T\u003e`).\n\nThis allows users to send non-Send types to other threads, which can lead to data race bugs or other undefined behavior.","status":"published","published":"2020-12-25T12:00:00Z","modified":"2023-11-08T04:03:46.381332Z","cvss":[{"version":"3.1","score":8.1,"vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H","level":"high"}],"updated_at":"2026-11-02T15:53:39.492624Z"}]}}