CVE-2026-14684: Uncontrolled Memory Allocation in HdrHistogram
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 actual existence of this vulnerability is currently in question. This issue is disputed due to the potential lack of crossing of security boundaries and the pre-requisites for a successful attack.
AI Analysis
Technical Summary
This vulnerability affects the decodeFromByteBuffer method in the AbstractHistogram class of HdrHistogram versions 2.2.0 through 2.2.2. Manipulating the numberOfSignificantValueDigits parameter can lead to uncontrolled memory allocation. The attack vector is local with low complexity and no privileges beyond local access are required. The issue is disputed, with uncertainty about whether it crosses security boundaries or can be successfully exploited. No official fix or patch has been published as of the data provided.
Potential Impact
If exploited, this vulnerability could cause excessive memory allocation on the local system, potentially impacting system stability or availability. However, the attack requires local access and the vulnerability's practical exploitability is questioned. There are no known exploits in the wild.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Since no official fix or patch is documented, monitor vendor communications for updates. Given the local attack requirement and disputed nature, no immediate urgent action is mandated.
CVE-2026-14684: Uncontrolled Memory Allocation in HdrHistogram
Description
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 actual existence of this vulnerability is currently in question. This issue is disputed due to the potential lack of crossing of security boundaries and the pre-requisites for a successful attack.
CVSS v4.0
Score 4.8medium
Affected software
pkg:maven/org.HdrHistogram/hdrhistogramcpe:2.3:a:hdrhistogram:hdrhistogram:*:*:*:*:*:*:*:*Run on your own infrastructure? Check whether these packages are installed with threat-finder — our free open-source scanner.
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability affects the decodeFromByteBuffer method in the AbstractHistogram class of HdrHistogram versions 2.2.0 through 2.2.2. Manipulating the numberOfSignificantValueDigits parameter can lead to uncontrolled memory allocation. The attack vector is local with low complexity and no privileges beyond local access are required. The issue is disputed, with uncertainty about whether it crosses security boundaries or can be successfully exploited. No official fix or patch has been published as of the data provided.
Potential Impact
If exploited, this vulnerability could cause excessive memory allocation on the local system, potentially impacting system stability or availability. However, the attack requires local access and the vulnerability's practical exploitability is questioned. There are no known exploits in the wild.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Since no official fix or patch is documented, monitor vendor communications for updates. Given the local attack requirement and disputed nature, no immediate urgent action is mandated.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- VulDB
- Date Reserved
- 2026-07-04T04:39:58.430Z
- Cvss Version
- 4.0
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 6a49991427e9c79719598046
Added to database: 07/04/2026, 23:36:52 UTC
Last enriched: 07/19/2026, 18:13:27 UTC
Last updated: 08/18/2026, 22:49:25 UTC
Views: 147
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