CVE-2026-33524
Zserio: Integer Overflow in BitStreamReader and Unbounded Memory Allocation in Deserialization
Summary
Zserio: Integer Overflow in BitStreamReader and Unbounded Memory Allocation in Deserialization
Original description
The description as published by the source.
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 2.18.1.
Source: OSV.dev (Open Source Vulnerabilities) NVD GitHub Advisory OSV
References
- advisory github.com
- advisory github.com
- advisory nvd.nist.gov