Posted by Lee Rhodes on Oct 10 Severity: moderate Affected versions: - Apache DataSketches 1.0.0-incubating through 5.2.0 Description: 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 entries, without checking it against the...
CVE-2026-103501: Apache DataSketches: datasketches-cpp: HLL CouponList Deserialization Buffer Overflow allows memory corruption via a crafted sketch
About this summary. This is a short excerpt from the description that oss-security published with its article. Cyber Security News did not report or verify the underlying story. Read the original: https://seclists.org/oss-sec/2026/q4/125
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