CVE-2026-28815

A remote attacker can supply a short X-Wing HPKE encapsulated key and trigger an out-of-bounds read in the C decapsulation path, potentially causing a crash or memory disclosure depending on runtime protections. This issue is fixed in swift-crypto version 4.3.1...

Let’s All Agree to Use Seeds as ML-KEM Keys

Last week, NIST published the final version of the ML-KEM1 specification, FIPS 203. One change from the draft is that the final document explicitly allows storing the private decapsulation key as a seed. This is a plea to the cryptography engineering community: let’s all agree to only use seeds a...