CVE-2020-35899: Actix Actix-Service

Medium severity, CVSS 5.5. EPSS: 0.4% chance of exploitation in the next 30 days.

An issue was discovered in the actix-service crate before 1.0.6 for Rust. The Cell implementation allows obtaining more than one mutable reference to the same data.

Affected products

• Actix Actix-Service: before 1.0.6 (fixed in 1.0.6)

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