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.
References (7)
Core 7
Core References
Vdb Entry, Technical Description vdb-entry
technical-description
VDB-376279 | HdrHistogram AbstractHistogram.java memory allocation
https://vuldb.com/vuln/376279
Signature, Permissions Required signature
permissions-required
VDB-376279 | CTI Indicators (IOB, IOC, IOA)
https://vuldb.com/vuln/376279/cti
Third Party Advisory third-party-advisory
CVE-2026-14683 | CVE Analysis and Report
https://vuldb.com/cve/CVE-2026-14683
Third Party Advisory third-party-advisory
Submit #846750 | HdrHistogram 2.2.2 Denial of Service
https://vuldb.com/submit/846750
Third Party Advisory third-party-advisory
Submit #846752 | HdrHistogram 2.2.2 Denial of Service (Duplicate)
https://vuldb.com/submit/846752
Exploit exploit
issue-tracking
https://github.com/HdrHistogram/HdrHistogram/issues/219
Product product
https://github.com/HdrHistogram/HdrHistogram/
Scores
CVSS v3
3.3
EPSS
0.0012
EPSS Percentile
2.0%
Attack Vector
LOCAL
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L
CISA SSVC
Vulnrichment
Exploitation
poc
Automatable
no
Technical Impact
partial
Details
CWE
CWE-400
CWE-789
Status
published
Products (3)
None/HdrHistogram
2.2.0
None/HdrHistogram
2.2.1
None/HdrHistogram
2.2.2
Published
Jul 04, 2026
Tracked Since
Jul 05, 2026