{"id":"CVE-2020-36209","aliases":["EUVD-2021-1921","GHSA-wr55-mf5c-hhwm","RUSTSEC-2020-0102"],"status":"published","title":"Data races in late-static","description":"An issue was discovered in the late-static crate before 0.4.0 for Rust. Because Sync is implemented for LateStatic with T: Send, a data race can occur.","severity":{"version":"3.1","score":7,"vector":"CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high","assessor":"primary","from":"nvd"},"epss":{"day":"2026-11-11","score":0.00361,"percentile":0.30304,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":true},"cwes":["CWE-662"],"published":"2020-11-10T12:00:00Z","modified":"2026-10-24T10:30:47Z","fixes":[{"ecosystem":"crates.io","package":"late-static","fixed_in":["0.4.0"],"sources":["ghsa","osv"]}],"affected":[{"source":"ghsa","ecosystem":"crates.io","package":"late-static","ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"},{"fixed":"0.4.0"}]}]},{"source":"osv","ecosystem":"crates.io","package":"late-static","ranges":[{"type":"SEMVER","events":[{"introduced":"0"},{"fixed":"0.4.0"}]}]},{"source":"osv","ecosystem":"crates.io","package":"late-static","ranges":[{"type":"SEMVER","events":[{"introduced":"0.0.0-0"},{"fixed":"0.4.0"}]}]}],"products":[{"vendor":"late-static_project","product":"late-static"}],"references":[{"url":"https://rustsec.org/advisories/RUSTSEC-2020-0102.html","tags":["x_refsource_MISC","x_transferred","Exploit","Vendor Advisory","evidence","web","advisory"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2020-36209","tags":["advisory"]},{"url":"https://github.com/Richard-W/late-static/issues/1","tags":["web","report"]},{"url":"https://github.com/Richard-W/late-static/commit/11f396c","tags":["web"]},{"url":"https://github.com/advisories/GHSA-wr55-mf5c-hhwm"},{"url":"https://github.com/Richard-W/late-static","tags":["package"]},{"url":"https://crates.io/crates/late-static","tags":["package"]}],"sources":{"cve":[{"id":"CVE-2020-36209","description":"An issue was discovered in the late-static crate before 0.4.0 for Rust. Because Sync is implemented for LateStatic with T: Send, a data race can occur.","status":"published","published":"2021-01-22T09:06:01Z","modified":"2024-08-04T17:23:09.559Z","updated_at":"2026-11-02T14:35:55.128961Z"}],"euvd":[{"id":"EUVD-2021-1921","description":"An issue was discovered in the late-static crate before 0.4.0 for Rust. Because Sync is implemented for LateStatic with T: Send, a data race can occur.","status":"published","published":"2021-01-22T09:06:01Z","modified":"2024-08-04T17:23:09Z","updated_at":"2026-11-03T03:07:03.484914Z"}],"ghsa":[{"id":"GHSA-wr55-mf5c-hhwm","title":"Data races in late-static","description":"Affected versions of this crate implemented Sync for LateStatic with T: Send, so that it is possible to create a data race to a type T: Send + !Sync (e.g. Cell\u003cT\u003e).\n\nThis can result in a memory corruption or other kinds of undefined behavior.\n\nThe flaw was corrected in commit 11f396c by replacing the T: Send bound to T: Sync bound in the Sync impl for LateStatic\u003cT\u003e.","status":"published","published":"2021-08-25T20:50:44Z","modified":"2023-06-13T18:16:03Z","cvss":[{"version":"3.1","score":7,"vector":"CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high"}],"cwes":["CWE-662"],"updated_at":"2026-11-02T14:36:53.654352Z"}],"nvd":[{"id":"CVE-2020-36209","description":"An issue was discovered in the late-static crate before 0.4.0 for Rust. Because Sync is implemented for LateStatic with T: Send, a data race can occur.","status":"published","published":"2021-01-26T18:15:55.957Z","modified":"2026-06-17T03:15:00.867Z","cvss":[{"version":"3.1","score":7,"vector":"CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high","assessor":"primary"},{"version":"2.0","score":4.4,"vector":"AV:L/AC:M/Au:N/C:P/I:P/A:P","level":"medium","assessor":"primary"}],"updated_at":"2026-11-02T14:06:30.596418Z"}],"osv":[{"id":"CVE-2020-36209","description":"An issue was discovered in the late-static crate before 0.4.0 for Rust. Because Sync is implemented for LateStatic with T: Send, a data race can occur.","status":"published","published":"2021-01-26T18:15:55.957Z","modified":"2026-10-24T10:30:47.461982671Z","cvss":[{"version":"3.1","score":7,"vector":"CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high"}],"updated_at":"2026-11-02T15:44:16.612899Z"},{"id":"GHSA-wr55-mf5c-hhwm","title":"Data races in late-static","description":"Affected versions of this crate implemented Sync for LateStatic with T: Send, so that it is possible to create a data race to a type T: Send + !Sync (e.g. Cell\u003cT\u003e).\n\nThis can result in a memory corruption or other kinds of undefined behavior.\n\nThe flaw was corrected in commit 11f396c by replacing the T: Send bound to T: Sync bound in the Sync impl for LateStatic\u003cT\u003e.","status":"published","published":"2021-08-25T20:50:44Z","modified":"2023-11-08T04:03:41.659377Z","cvss":[{"version":"3.1","score":7,"vector":"CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high"}],"cwes":["CWE-662"],"updated_at":"2026-11-02T15:46:59.131095Z"},{"id":"RUSTSEC-2020-0102","title":"LateStatic has incorrect Sync bound","description":"Affected versions of this crate implemented `Sync` for `LateStatic` with `T: Send`, so that it is possible to create a data race to a type `T: Send + !Sync` (e.g. `Cell\u003cT\u003e`).\n\nThis can result in a memory corruption or other kinds of undefined behavior.\n\nThe flaw was corrected in commit 11f396c by replacing the `T: Send` bound to `T: Sync` bound in the `Sync` impl for `LateStatic\u003cT\u003e`.","status":"published","published":"2020-11-10T12:00:00Z","modified":"2023-11-08T04:03:41.659377Z","cvss":[{"version":"3.1","score":7,"vector":"CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H","level":"high"}],"updated_at":"2026-11-02T15:53:39.492624Z"}]}}