CVE-2015-20001: Rust-Lang Rust

High severity, CVSS 7.5. EPSS: 1.3% chance of exploitation in the next 30 days.

In the standard library in Rust before 1.2.0, BinaryHeap is not panic-safe. The binary heap is left in an inconsistent state when the comparison of generic elements inside sift_up or sift_down_range panics. This bug leads to a drop of zeroed memory as an arbitrary type, which can result in a memory safety violation.

Affected products

• Rust-Lang Rust: before 1.2.0 (fixed in 1.2.0)

Published 2021-04-11. Last modified 2026-06-17.