CVE-2020-35898: Actix Actix-Utils

Critical severity, CVSS 9.1. EPSS: 1.4% chance of exploitation in the next 30 days.

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.

Affected products

• Actix Actix-Utils: before 2.0.0 (fixed in 2.0.0)

Published 2020-12-31. Last modified 2026-06-17.