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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. The project was informed of the problem early through an issue report but has not responded yet.

PUBLISHED Reserved 2026-07-04 | Published 2026-07-04 | Updated 2026-07-07 | Assigner VulDB




MEDIUM: 4.8CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:P
LOW: 3.3CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L/E:P/RL:X/RC:R
LOW: 3.3CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L/E:P/RL:X/RC:R
1.7AV:L/AC:L/Au:S/C:N/I:N/A:P/E:POC/RL:ND/RC:UR

Problem types

Uncontrolled Memory Allocation

Resource Consumption

Timeline

2026-07-04:Advisory disclosed
2026-07-04:VulDB entry created
2026-07-04:VulDB entry last update

Credits

sara11h (VulDB User) reporter

VulDB CNA Team coordinator

References

vuldb.com/vuln/376279 (VDB-376279 | HdrHistogram AbstractHistogram.java memory allocation) vdb-entry technical-description

vuldb.com/vuln/376279/cti (VDB-376279 | CTI Indicators (IOB, IOC, IOA)) signature permissions-required

vuldb.com/cve/CVE-2026-14683 (CVE-2026-14683 | CVE Analysis and Report) third-party-advisory

vuldb.com/submit/846750 (Submit #846750 | HdrHistogram 2.2.2 Denial of Service) third-party-advisory

vuldb.com/submit/846752 (Submit #846752 | HdrHistogram 2.2.2 Denial of Service (Duplicate)) third-party-advisory

github.com/HdrHistogram/HdrHistogram/issues/219 exploit issue-tracking

github.com/HdrHistogram/HdrHistogram/ product

cve.org (CVE-2026-14683)

nvd.nist.gov (CVE-2026-14683)

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