CVE-2026-14683: Uncontrolled Memory Allocation in HdrHistogram
A vulnerability was detected in HdrHistogram up to 2.2.2. Affected by this issue is the function org.HdrHistogram.AbstractHistogram.decodeFromCompressedByteBuffer of the file src/main/java/org/HdrHistogram/AbstractHistogram.java. The manipulation of the argument lengthOfCompressedContents results in uncontrolled memory allocation. The attack needs to be approached locally. The exploit is now public and may be used. It is still unclear if this vulnerability genuinely exists. 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 decodeFromCompressedByteBuffer function in HdrHistogram up to version 2.2.2. An attacker with local access and low privileges can manipulate the lengthOfCompressedContents argument, causing uncontrolled memory allocation. The issue is disputed, as it is unclear if the vulnerability truly exists or if it can be exploited beyond local boundaries. No official remediation or patch has been published, and no known exploits are reported in the wild.
Potential Impact
If exploited, this vulnerability could lead to excessive memory allocation on the affected system, potentially causing denial of service or resource exhaustion. However, the attack requires local access and low privileges, and the vulnerability's existence and impact are disputed. There are no reports of active exploitation in the wild.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Since no official fix or workaround is currently available, users should monitor vendor communications for updates. Given the local access requirement and disputed nature, no immediate urgent action is mandated.
CVE-2026-14683: Uncontrolled Memory Allocation in HdrHistogram
Description
A vulnerability was detected in HdrHistogram up to 2.2.2. Affected by this issue is the function org.HdrHistogram.AbstractHistogram.decodeFromCompressedByteBuffer of the file src/main/java/org/HdrHistogram/AbstractHistogram.java. The manipulation of the argument lengthOfCompressedContents results in uncontrolled memory allocation. The attack needs to be approached locally. The exploit is now public and may be used. It is still unclear if this vulnerability genuinely exists. 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 decodeFromCompressedByteBuffer function in HdrHistogram up to version 2.2.2. An attacker with local access and low privileges can manipulate the lengthOfCompressedContents argument, causing uncontrolled memory allocation. The issue is disputed, as it is unclear if the vulnerability truly exists or if it can be exploited beyond local boundaries. No official remediation or patch has been published, and no known exploits are reported in the wild.
Potential Impact
If exploited, this vulnerability could lead to excessive memory allocation on the affected system, potentially causing denial of service or resource exhaustion. However, the attack requires local access and low privileges, and the vulnerability's existence and impact are disputed. There are no reports of active exploitation in the wild.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory for current remediation guidance. Since no official fix or workaround is currently available, users should monitor vendor communications for updates. Given the local access requirement and disputed nature, no immediate urgent action is mandated.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- VulDB
- Date Reserved
- 2026-07-04T04:39:55.742Z
- Cvss Version
- 4.0
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 6a49959f27e9c79719531cfc
Added to database: 07/04/2026, 23:22:07 UTC
Last enriched: 07/19/2026, 18:13:21 UTC
Last updated: 08/18/2026, 22:49:25 UTC
Views: 127
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