fix principal length check (#545)

dfinity · May 3, 2024 · d2654f9 · d2654f9
1 parent ae4d0f7
commit d2654f9
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/rust/candid/src/binary_parser.rs b/rust/candid/src/binary_parser.rs
@@ -129,7 +129,7 @@ pub struct Len(
 pub struct PrincipalBytes {
     #[br(assert(flag == 1u8, "Opaque reference not supported"))]
     pub flag: u8,
-    #[br(parse_with = read_leb)]
+    #[br(parse_with = read_leb, assert(len <= 29, "Principal is longer than 29 bytes"))]
     pub len: u64,
     #[br(count = len)]
     pub inner: Vec<u8>,