{"id":"CVE-2020-36445","aliases":["EUVD-2021-1874","GHSA-rpxm-vmr7-5f5f","RUSTSEC-2020-0125"],"status":"published","title":"Data races in convec","description":"An issue was discovered in the convec crate through 2020-11-24 for Rust. There are unconditional implementations of Send and Sync for ConVec\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":0.00766,"percentile":0.55902,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-119","CWE-362"],"published":"2020-11-24T12:00:00Z","modified":"2026-06-17T03:15:30Z","affected":[{"source":"ghsa","ecosystem":"crates.io","package":"convec","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"last_affected":"2.0.1"}]}]},{"source":"osv","ecosystem":"crates.io","package":"convec","ranges":[{"type":"SEMVER","events":[{"introduced":"0"},{"last_affected":"2.0.1"}]}]},{"source":"osv","ecosystem":"crates.io","package":"convec","ranges":[{"type":"SEMVER","events":[{"introduced":"0.0.0-0"}]}]}],"products":[{"vendor":"project","product":"convec"}],"references":[{"url":"https://rustsec.org/advisories/RUSTSEC-2020-0125.html","tags":["x_refsource_MISC","x_transferred","Third Party Advisory","web","advisory"]},{"url":"https://raw.githubusercontent.com/rustsec/advisory-db/main/crates/convec/RUSTSEC-2020-0125.md","tags":["x_refsource_MISC","x_transferred","Third Party Advisory","web"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2020-36445","tags":["advisory"]},{"url":"https://github.com/advisories/GHSA-rpxm-vmr7-5f5f"},{"url":"https://github.com/krl/convec","tags":["package"]},{"url":"https://crates.io/crates/convec","tags":["package"]},{"url":"https://github.com/krl/convec/issues/2","tags":["report"]}],"sources":{"cve":[{"id":"CVE-2020-36445","description":"An issue was discovered in the convec crate through 2020-11-24 for Rust. There are unconditional implementations of Send and Sync for ConVec\u003cT\u003e.","status":"published","published":"2021-08-08T05:17:02Z","modified":"2024-08-04T17:30:07.418Z","updated_at":"2026-11-02T14:35:55.128961Z"}],"euvd":[{"id":"EUVD-2021-1874","description":"An issue was discovered in the convec crate through 2020-11-24 for Rust. There are unconditional implementations of Send and Sync for ConVec\u003cT\u003e.","status":"published","published":"2021-08-08T05:17:02Z","modified":"2024-08-04T17:30:07Z","updated_at":"2026-11-03T03:07:03.010139Z"}],"ghsa":[{"id":"GHSA-rpxm-vmr7-5f5f","title":"Data races in convec","description":"Affected versions of this crate unconditionally implement Send/Sync for `ConVec\u003cT\u003e`.\nThis allows users to insert `T` that is not Send or not Sync.\n\nThis allows users to create data races by using non-Send types like `Arc\u003cCell\u003c_\u003e\u003e` or `Rc\u003c_\u003e` as `T` in `ConVec\u003cT\u003e`. It is also possible to create data races by using types like `Cell\u003c_\u003e` or `RefCell\u003c_\u003e` as `T` (types that are `Send` but not `Sync`).\nSuch data races can lead to memory corruption.","status":"published","published":"2021-08-25T20:59:15Z","modified":"2023-01-27T05:00:52Z","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":"2026-11-02T14:36:15.574072Z"}],"nvd":[{"id":"CVE-2020-36445","description":"An issue was discovered in the convec crate through 2020-11-24 for Rust. There are unconditional implementations of Send and Sync for ConVec\u003cT\u003e.","status":"published","published":"2021-08-08T06:15:07.313Z","modified":"2026-06-17T03:15:30.447Z","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":"GHSA-rpxm-vmr7-5f5f","title":"Data races in convec","description":"Affected versions of this crate unconditionally implement Send/Sync for `ConVec\u003cT\u003e`.\nThis allows users to insert `T` that is not Send or not Sync.\n\nThis allows users to create data races by using non-Send types like `Arc\u003cCell\u003c_\u003e\u003e` or `Rc\u003c_\u003e` as `T` in `ConVec\u003cT\u003e`. It is also possible to create data races by using types like `Cell\u003c_\u003e` or `RefCell\u003c_\u003e` as `T` (types that are `Send` but not `Sync`).\nSuch data races can lead to memory corruption.","status":"published","published":"2021-08-25T20:59:15Z","modified":"2023-11-08T04:03:45.276409Z","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":"2026-11-02T15:46:56.281047Z"},{"id":"RUSTSEC-2020-0125","title":"convec::ConVec\u003cT\u003e unconditionally implements Send/Sync","description":"Affected versions of this crate unconditionally implement Send/Sync for `ConVec\u003cT\u003e`.\nThis allows users to insert `T` that is not Send or not Sync.\n\nThis allows users to create data races by using non-Send types like `Arc\u003cCell\u003c_\u003e\u003e` or `Rc\u003c_\u003e` as `T` in `ConVec\u003cT\u003e`. It is also possible to create data races by using types like `Cell\u003c_\u003e` or `RefCell\u003c_\u003e` as `T` (types that are `Send` but not `Sync`).\nSuch data races can lead to memory corruption.","status":"published","published":"2020-11-24T12:00:00Z","modified":"2023-11-08T04:03:45.276409Z","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"}]}}