OSV-2026-726 Use-after-poison in md_build_attribute

OSS-Fuzz report: https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=512429151 Crash type: Use-after-poison READ 1 Crash state: mdbuildattribute mdprocessallblocks mdparse...

OSV-2026-718 Heap-buffer-overflow in md_parse

OSS-Fuzz report: https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=511825301 Crash type: Heap-buffer-overflow READ 1 Crash state: mdparse mdhtml fuzz-mdhtml.c...