CVE-2026-14684 PUBLISHED

A flaw has been found in HdrHistogram up to 2.2.2. This affects the function org.HdrHistogram.AbstractHistogram.decodeFromByteBuffer of the file src/main/java/org/HdrHistogram/AbstractHistogram.java. This manipulation of the argument numberOfSignificantValueDigits causes uncontrolled memory allocation. The attack can only be executed locally. The exploit has been published and may be used. The project was informed of the problem early through an issue report but has not responded yet.

• sara11h (VulDB User) reporter
• VulDB CNA Team coordinator

• VDB-376280 | HdrHistogram AbstractHistogram.java memory allocation
• VDB-376280 | CTI Indicators (IOB, IOC, IOA)
• CVE-2026-14684 | CVE Analysis and Report
• Submit #846754 | HdrHistogram 2.2.2 Denial of Service
• https://github.com/HdrHistogram/HdrHistogram/issues/220
• https://github.com/HdrHistogram/HdrHistogram/

• Uncontrolled Memory Allocation CWE
• Resource Consumption CWE