CVE-2026-14684
HdrHistogram AbstractHistogram.java memory allocation
CVSS Score
3.3
EPSS Score
0.1%
EPSS Percentile
2th
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.
| CWE | CWE-789 CWE-400 |
| Vendor | n/a |
| Product | hdrhistogram |
| Published | Jul 4, 2026 |
| Last Updated | Jul 16, 2026 |
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CVSS v3 Breakdown
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L/E:P/RL:X/RC:R Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality
Integrity
Availability
Affected Versions
n/a / HdrHistogram
2.2.0 2.2.1 2.2.2
References
vuldb.com: https://vuldb.com/vuln/376280 vuldb.com: https://vuldb.com/vuln/376280/cti vuldb.com: https://vuldb.com/cve/CVE-2026-14684 vuldb.com: https://vuldb.com/submit/846754 github.com: https://github.com/HdrHistogram/HdrHistogram/issues/220 github.com: https://github.com/HdrHistogram/HdrHistogram/
Credits
🔍 sara11h (VulDB User) VulDB CNA Team