CVE-2026-103501

Heap buffer overflow in the HLL sketch deserialization of Apache DataSketches C++ repo: datasketches-cpp. When deserializing a sketch in LIST mode, from either a byte buffer or a stream, the coupon count was read from the input and used as the number of entries to copy into a fixed buffer of 8...

CVE-2026-103501

A heap buffer overflow exists in the HLL sketch deserialization of Apache DataSketches C++ (repo: datasketches-cpp). When deserializing a sketch in LIST mode from a byte buffer or stream, the software fails to validate the input coupon count against a fixed internal buffer capacity of 8 entries. ...

EUVD-2026-96306

Heap buffer overflow in the HLL sketch deserialization of Apache DataSketches C++ repo: datasketches-cpp. When deserializing a sketch in LIST mode, from either a byte buffer or a stream, the coupon count was read from the input and used as the number of entries to copy into a fixed buffer of 8...

CVE-2026-103501 Apache DataSketches: datasketches-cpp: HLL CouponList Deserialization Buffer Overflow allows memory corruption via a crafted sketch

Heap buffer overflow in the HLL sketch deserialization of Apache DataSketches C++ repo: datasketches-cpp. When deserializing a sketch in LIST mode, from either a byte buffer or a stream, the coupon count was read from the input and used as the number of entries to copy into a fixed buffer of 8...