An issue was discovered in the actix-utils crate before 2.0.0 for Rust. The Cell implementation allows obtaining more than one mutable reference to the same data.
https://rustsec.org/advisories/RUSTSEC-2020-0045.html
Source: Mitre, NVD
Published: 2020-12-31
Updated: 2026-06-17
Base Score: 6.4
Vector: CVSS2#AV:N/AC:L/Au:N/C:N/I:P/A:P
Severity: Medium
Base Score: 9.1
Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:H
Severity: Critical
EPSS: 0.00334