janet vulnerabilities (OSS-Fuzz)

2 vulnerabilities.

• janet OSS-Fuzz Heap-buffer-overflow in janet_bytecode_movopt_basic_block OSV-2026-1309 Fix available No scoreSeptember 21, 2026
• janet OSS-Fuzz UNKNOWN READ in janet_to_string_b OSV-2026-1297 Fix available No scoreSeptember 18, 2026