CVE-2026-56232 Capgo - Subkey Scope Bypass in middlewareKey via x-limited-key-id Header

Capgo before 12.128.2 fails to enforce limitedtoorgs and limitedtoapps constraints on subkeys provided via x-limited-key-id header in middlewareKey function. Attackers can bypass subkey scope restrictions by referencing their own subkeys, causing all downstream route handlers to use the...

gnupg: treats no-usage-permitted keys as all-usages-permitted

GnuPG 1.4.x, 2.0.x, and 2.1.x treats a key flags subpacket with all bits cleared no usage permitted as if it has all bits set all usage permitted, which might allow remote attackers to bypass intended cryptographic protection mechanisms by leveraging the subkey...