CVE-2021-26951: Calamine Project Calamine

Critical severity, CVSS 9.8. EPSS: 1.7% chance of exploitation in the next 30 days.

An issue was discovered in the calamine crate before 0.17.0 for Rust. It allows attackers to overwrite heap-memory locations because Vec::set_len is used without proper memory claiming, and this uninitialized memory is used for a user-provided Read operation, as demonstrated by Sectors::get.

Affected products

• Calamine Project Calamine: before 0.17.0 (fixed in 0.17.0)

Published 2021-02-09. Last modified 2026-06-17.