CVE-2026-14684: Uncontrolled Memory Allocation in HdrHistogram
CVE-2026-14684 is a medium severity vulnerability in HdrHistogram versions 2.2.0, 2.2.1, and 2.2.2. It involves uncontrolled memory allocation in the decodeFromByteBuffer function due to manipulation of the numberOfSignificantValueDigits argument. The attack requires local access and no user interaction. No official patch or remediation has been provided yet, and the vendor has not responded to the issue report.
AI Analysis
Technical Summary
HdrHistogram up to version 2.2.2 contains a vulnerability in the org.HdrHistogram.AbstractHistogram.decodeFromByteBuffer method where manipulation of the numberOfSignificantValueDigits argument leads to uncontrolled memory allocation. This flaw can be exploited locally to cause resource exhaustion. The vulnerability has been publicly disclosed, but no official fix or patch is currently available from the vendor.
Potential Impact
Successful exploitation can cause uncontrolled memory allocation on the affected system, potentially leading to denial of service or resource exhaustion. The attack requires local privileges and does not involve user interaction or network access, limiting its attack surface.
Mitigation Recommendations
No official fix or patch is currently available. Since the vendor has not responded and no remediation level is provided, users should monitor vendor advisories for updates. Restrict local access to trusted users to reduce risk. Patch status is not yet confirmed — check the vendor advisory for current remediation guidance.
CVE-2026-14684: Uncontrolled Memory Allocation in HdrHistogram
Description
CVE-2026-14684 is a medium severity vulnerability in HdrHistogram versions 2.2.0, 2.2.1, and 2.2.2. It involves uncontrolled memory allocation in the decodeFromByteBuffer function due to manipulation of the numberOfSignificantValueDigits argument. The attack requires local access and no user interaction. No official patch or remediation has been provided yet, and the vendor has not responded to the issue report.
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
HdrHistogram up to version 2.2.2 contains a vulnerability in the org.HdrHistogram.AbstractHistogram.decodeFromByteBuffer method where manipulation of the numberOfSignificantValueDigits argument leads to uncontrolled memory allocation. This flaw can be exploited locally to cause resource exhaustion. The vulnerability has been publicly disclosed, but no official fix or patch is currently available from the vendor.
Potential Impact
Successful exploitation can cause uncontrolled memory allocation on the affected system, potentially leading to denial of service or resource exhaustion. The attack requires local privileges and does not involve user interaction or network access, limiting its attack surface.
Mitigation Recommendations
No official fix or patch is currently available. Since the vendor has not responded and no remediation level is provided, users should monitor vendor advisories for updates. Restrict local access to trusted users to reduce risk. Patch status is not yet confirmed — check the vendor advisory for current remediation guidance.
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: 07/04/2026, 23:51:17 UTC
Last updated: 07/05/2026, 01:11:51 UTC
Views: 8
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