{"id":"CVE-2020-36437","aliases":["EUVD-2021-1530","GHSA-368f-29c3-4f2r","RUSTSEC-2020-0117"],"status":"published","title":"Data race in conqueue","description":"An issue was discovered in the conqueue crate before 0.4.0 for Rust. There are unconditional implementations of Send and Sync for QueueSender\u003cT\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":0.00847,"percentile":0.58521,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-119","CWE-362"],"published":"2020-11-24T12:00:00Z","modified":"2026-10-24T10:30:33Z","fixes":[{"ecosystem":"crates.io","package":"conqueue","fixed_in":["0.4.0"],"sources":["ghsa","osv"]}],"affected":[{"source":"ghsa","ecosystem":"crates.io","package":"conqueue","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0.4.0"}]}]},{"source":"osv","ecosystem":"crates.io","package":"conqueue","ranges":[{"type":"SEMVER","events":[{"introduced":"0"},{"fixed":"0.4.0"}]}]},{"source":"osv","ecosystem":"crates.io","package":"conqueue","ranges":[{"type":"SEMVER","events":[{"introduced":"0.0.0-0"},{"fixed":"0.4.0"}]}]}],"products":[{"vendor":"conqueue_project","product":"conqueue"}],"references":[{"url":"https://rustsec.org/advisories/RUSTSEC-2020-0117.html","tags":["x_refsource_MISC","x_transferred","Third Party Advisory","advisory","web"]},{"url":"https://raw.githubusercontent.com/rustsec/advisory-db/main/crates/conqueue/RUSTSEC-2020-0117.md","tags":["x_refsource_MISC","x_transferred","Third Party Advisory","advisory","web"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2020-36437","tags":["advisory"]},{"url":"https://github.com/longshorej/conqueue/commit/1e462c32e7933821ddb26dc49fd4ffa5aeca97b8","tags":["web"]},{"url":"https://github.com/advisories/GHSA-368f-29c3-4f2r"},{"url":"https://github.com/longshorej/conqueue","tags":["package"]},{"url":"https://crates.io/crates/conqueue","tags":["package"]},{"url":"https://github.com/longshorej/conqueue/issues/9","tags":["report"]}],"sources":{"cve":[{"id":"CVE-2020-36437","description":"An issue was discovered in the conqueue crate before 0.4.0 for Rust. There are unconditional implementations of Send and Sync for QueueSender\u003cT\u003e.","status":"published","published":"2021-08-08T05:18:44Z","modified":"2024-08-04T17:30:07.378Z","updated_at":"2026-11-02T14:35:54.80237Z"}],"euvd":[{"id":"EUVD-2021-1530","description":"An issue was discovered in the conqueue crate before 0.4.0 for Rust. There are unconditional implementations of Send and Sync for QueueSender\u003cT\u003e.","status":"published","published":"2021-08-08T05:18:44Z","modified":"2024-08-04T17:30:07Z","updated_at":"2026-11-03T03:07:03.010139Z"}],"ghsa":[{"id":"GHSA-368f-29c3-4f2r","title":"Data race in conqueue","description":"Affected versions of this crate unconditionally implemented `Send`/`Sync` for `QueueSender\u003cT\u003e`, allowing to send non-Send `T` to other threads by invoking `(\u0026QueueSender\u003cT\u003e).send()`.\n\nThis fails to prevent users from creating data races by sending types like `Rc\u003cT\u003e` or `Arc\u003cCell\u003cT\u003e\u003e` to other threads, which can lead to memory corruption. The flaw was corrected in commit `1e462c3` by imposing `T: Send` to both `Send`/`Sync` impls for `QueueSender\u003cT\u003e`/`QueueReceiver\u003cT\u003e`.","status":"published","published":"2021-08-25T20:58:50Z","modified":"2023-06-22T05:03:24Z","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-119","CWE-362"],"updated_at":"2026-11-02T14:36:55.184601Z"}],"nvd":[{"id":"CVE-2020-36437","description":"An issue was discovered in the conqueue crate before 0.4.0 for Rust. There are unconditional implementations of Send and Sync for QueueSender\u003cT\u003e.","status":"published","published":"2021-08-08T06:15:07.003Z","modified":"2026-06-17T03:15:29.43Z","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-362"],"updated_at":"2026-11-02T14:06:44.292752Z"}],"osv":[{"id":"CVE-2020-36437","description":"An issue was discovered in the conqueue crate before 0.4.0 for Rust. There are unconditional implementations of Send and Sync for QueueSender\u003cT\u003e.","status":"published","published":"2021-08-08T06:15:07.003Z","modified":"2026-10-24T10:30:33.370791909Z","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":"2026-11-02T15:44:16.936975Z"},{"id":"GHSA-368f-29c3-4f2r","title":"Data race in conqueue","description":"Affected versions of this crate unconditionally implemented `Send`/`Sync` for `QueueSender\u003cT\u003e`, allowing to send non-Send `T` to other threads by invoking `(\u0026QueueSender\u003cT\u003e).send()`.\n\nThis fails to prevent users from creating data races by sending types like `Rc\u003cT\u003e` or `Arc\u003cCell\u003cT\u003e\u003e` to other threads, which can lead to memory corruption. The flaw was corrected in commit `1e462c3` by imposing `T: Send` to both `Send`/`Sync` impls for `QueueSender\u003cT\u003e`/`QueueReceiver\u003cT\u003e`.","status":"published","published":"2021-08-25T20:58:50Z","modified":"2023-11-08T04:03:44.783101Z","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-119","CWE-362"],"updated_at":"2026-11-02T15:46:35.406455Z"},{"id":"RUSTSEC-2020-0117","title":"QueueSender\u003cT\u003e/QueueReceiver\u003cT\u003e: Send/Sync impls need `T: Send`","description":"Affected versions of this crate unconditionally implemented `Send`/`Sync` for `QueueSender\u003cT\u003e`,\nallowing to send non-Send `T` to other threads by invoking `(\u0026QueueSender\u003cT\u003e).send()`.\n\nThis fails to prevent users from creating data races by sending types like `Rc\u003cT\u003e` or `Arc\u003cCell\u003cT\u003e\u003e` to other threads, which can lead to memory corruption.\n\nThe flaw was corrected in commit 1e462c3 by imposing `T: Send` to both `Send`/`Sync` impls for `QueueSender\u003cT\u003e`/`QueueReceiver\u003cT\u003e`.","status":"published","published":"2020-11-24T12:00:00Z","modified":"2023-11-08T04:03:44.783101Z","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"}]}}