CVE-2026-2681 Github.com/supranational/blst: blst cryptographic library: denial of service via out-of-bounds stack write in key generation

A flaw was found in the blst cryptographic library. This out-of-bounds stack write vulnerability, specifically in the blstsha256bcopy assembly routine, occurs due to a missing zero-length guard. A remote attacker can exploit this by providing a zero-length salt parameter to key generation...