This page tracks the Debian fix status. The vulnerability itself is described on the main CVE page.
View CVE-2026-6330 →
DEBIAN-CVE-2026-6330
The ML-KEM ARM64 NEON ciphertext comparison only compares half of the input, breaking the Fujisaki-Okamoto transform's implicit rejection and weakenin...
Original description
The description as published by the source.
The ML-KEM ARM64 NEON ciphertext comparison only compares half of the input, breaking the Fujisaki-Okamoto transform's implicit rejection and weakening IND-CCA2 security on that code path. The constant-time comparison effectively ignored part of the re-encrypted ciphertext, so a decapsulating party could fail to detect a manipulated ciphertext and proceed without the standard's required implicit rejection.
Source: OSV.dev (Open Source Vulnerabilities) OSV
Affected packages
Debian:12
wolfssl
[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}]
Debian:13
wolfssl
[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}]
References
- advisory security-tracker.debian.org