CVE-2026-103501

Published: Ott 10, 2026 Last Modified: Ott 10, 2026
ExploitDB:
Other exploit source:
Google Dorks:

Description

AI Translation Available

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 buffer's capacity. A crafted sketch could cause a write of up to 988 bytes past the end of this internal heap buffer. This can corrupt heap memory, causing a crash and potentially enabling further exploitation.

This issue affects Apache DataSketches C++: from 1.0.0-incubating before 5.3.0. Only applications that deserialize HLL sketches from untrusted sources are affected.

Users are recommended to upgrade to version 5.3.0, which fixes this issue.

EPSS (Exploit Prediction Scoring System)

Trend Analysis

EPSS (Exploit Prediction Scoring System)

Prevede la probabilità di sfruttamento basata su intelligence sulle minacce e sulle caratteristiche della vulnerabilità.

EPSS Score
0,0021
Percentile
0,1th
Updated

Single Data Point

Only one EPSS measurement is available for this CVE. Trend analysis requires multiple data points over time.

122

Heap-based Buffer Overflow

Draft
Abstraction: Variant Structure: Simple
Common Consequences
Security Scopes Affected:
Availability Integrity Confidentiality Access Control Other
Potential Impacts:
Dos: Crash, Exit, Or Restart Dos: Resource Consumption (Cpu) Dos: Resource Consumption (Memory) Execute Unauthorized Code Or Commands Bypass Protection Mechanism Modify Memory Other
Applicable Platforms
Languages: Memory-Unsafe, C, C++
Likelihood of Exploit: High
View CWE Details
1284

Improper Validation of Specified Quantity in Input

Incomplete
Abstraction: Base Structure: Simple
Common Consequences
Security Scopes Affected:
Other Integrity Availability
Potential Impacts:
Varies By Context Dos: Resource Consumption (Cpu) Modify Memory Read Memory
Applicable Platforms
All platforms may be affected
View CWE Details
http://www.openwall.com/lists/oss-security/2026/10/10/2
http://www.openwall.com/lists/oss-security/2026/10/10/2
https://github.com/apache/datasketches-cpp/releases/tag/5.3…
https://github.com/apache/datasketches-cpp/releases/tag/5.3.0
https://lists.apache.org/thread/n2oc2j841dzsv4239jjp08of66b…
https://lists.apache.org/thread/n2oc2j841dzsv4239jjp08of66bo79c5