Affected versions of hashconsing implements Send/Sync for its HConsed type without restricting it to Sendable types and Syncable types. This allows non-Sync types such as Cell to be shared across threads leading to undefined behavior and memory corruption in concurrent programs.
{
"cwe_ids": [
"CWE-662",
"CWE-787"
],
"github_reviewed": true,
"github_reviewed_at": "2021-08-19T18:47:26Z",
"nvd_published_at": "2021-01-26T18:15:00Z",
"severity": "HIGH"
}