GNU gawk

• CVE-2026-40553 Medium 5.1 Stack-based buffer overflow in gawk 0.3%
• CVE-2026-40469 Medium 5.1 Heap buffer overflow in gawk 0.2%
• CVE-2026-40468 Low 2.1 Heap buffer overflow in gawk 0.2%
• CVE-2026-40467 Medium 5.1 Use after free in gawk 0.2%