Libgcrypt before 1.12.2 mishandles Dilithium signing. Writes to a static array lack a bounds check but do not use attacker-controlled data.

Fix status by distribution

Fixed packages published by each distribution for this CVE

• BellSoft Alpaquita BELL-CVE-2026-41990 libgcrypt Fixed in: 1.12.2-r0
• Debian DEBIAN-CVE-2026-41990 libgcrypt20 Fixed in: 1.12.2-1
• Ubuntu UBUNTU-CVE-2026-41990 libgcrypt20

References

• advisory github.com
• advisory nvd.nist.gov
• web dev.gnupg.org
• web lists.gnupg.org
• web openwall.com