CVE-2026-33666

Zserio is a framework for serializing structured data with a compact and efficient way with low overhead. Prior to 2.18.1, in BitStreamReader.h readBytes / readString, the setBitPosition bounds check receives the overflowed value and is completely bypassed. The code then reads len bytes 512 MB fr...

CVE-2026-33524 Zserio: Integer Overflow in BitStreamReader and Unbounded Memory Allocation in Deserialization

Zserio is a framework for serializing structured data with a compact and efficient way with low overhead. Prior to 2.18.1, a crafted payload as small as 4-5 bytes can force memory allocations of up to 16 GB, crashing any process with an OOM error Denial of Service. This vulnerability is fixed in...