cgohlke imagecodecs

• CVE-2026-120252 Medium 5.5 imagecodecs 2023.1.23 through 2026.10.10 Stack Buffer Overflow via jpegsof3_decode() 0.1%
• CVE-2026-120251 Medium 5.5 imagecodecs 2026.3.6 through 2026.10.10 Infinite Loop via ccittfax4_decode() 0.1%