diff --git a/Cargo.toml b/Cargo.toml
index 0858b3c4..251c4c76 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -44,6 +44,7 @@ sev = ["dep:rdrand"]
 snp = []
 crypto_nossl = ["dep:p384", "dep:rsa", "dep:sha2", "dep:x509-cert"]
 serde = ["dep:serde", "dep:serde-big-array", "dep:serde_bytes"]
+unsafe_parser = []
 
 [target.'cfg(target_os = "linux")'.dependencies]
 iocuddle = "^0.1"
diff --git a/src/util/parser_helper/read_ext.rs b/src/util/parser_helper/read_ext.rs
index dc7e4fcb..1d88d64c 100644
--- a/src/util/parser_helper/read_ext.rs
+++ b/src/util/parser_helper/read_ext.rs
@@ -33,6 +33,7 @@ pub trait ReadExt: Read {
             while remaining > 0 {
                 let n = remaining.min(CHUNK);
                 self.read_exact(&mut buf[..n])?;
+                #[cfg(not(feature = "unsafe_parser"))]
                 if buf[..n].iter().any(|&b| b != 0) {
                     return Err(std::io::Error::new(
                         std::io::ErrorKind::InvalidData,