CVE-2021-28032

An issue was discovered in the nano_arena crate before 0.5.2 for Rust. There is an aliasing violation in split_at because two mutable references can exist for the same element, if Borrow<Idx> behaves in certain ways. This can have a resultant out-of-bounds write or use-after-free.

• https://rustsec.org/advisories/RUSTSEC-2021-0031.htmlExploit, Patch, Third Party Advisory
• https://rustsec.org/advisories/RUSTSEC-2021-0031.htmlExploit, Patch, Third Party Advisory

Published

Mar 5, 2021

Last Modified

Jun 17, 2026

Status

Modified

• How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
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