CVE catalog

CVE-2026-14684

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.

[CVE catalog]

Severity: Medium · CVSS 5CVSS:3.1/AV:L/AC:L/PR:L/UI:R/S:U/C:N/I:N/A:H
Published: Jun 18, 2026, 2:12:47 AM UTC
Source: [NVD] · [CVE record]
EPSS: 0.16% · Oct 25, 2026

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.

Vulnerable and fixed packages

Distribution-reported package versions and fixes. These do not depend on matching against the OpenFactory package catalog.

Distribution	Package	Release	Version	Status
Debian	hdrhistogram	sid	`2.2.2-1`	fixed
Debian	hdrhistogram	forky	`2.2.2-1`	fixed
Debian	hdrhistogram	trixie	`2.1.11-1`	vulnerable
Debian	hdrhistogram	bookworm	`2.1.11-1`	vulnerable
Cpe	hdrhistogram	Not reported	Not reported	vulnerable

Fixed-version evidence

Distribution	Package	Type	Release	Fixed version	Urgency	Origin	Bugs
Debian	hdrhistogram	source	sid	`2.2.2-1`	not yet assigned	Not reported	[1142286]
Debian	hdrhistogram	source	forky	`2.2.2-1`	not yet assigned	Not reported	[1142286]
Debian	hdrhistogram	source	trixie	`(unfixed)`	not yet assigned	Not reported	[1142286]
Debian	hdrhistogram	source	bookworm	`(unfixed)`	not yet assigned	Not reported	[1142286]

[Debian bug #1142286]

Notes

[trixie] hdrhistogram: Minor issue, revisit when fixed upstream [bookworm] hdrhistogram: Minor issue, untrusted-input DoS/integrity; unfixed upstream, revisit when fixed

OpenFactory catalog packages

[Debian 12 (Bookworm)]

[libhdrhistogram-java]Affected
Source package: [hdrhistogram]
Details (2)
- 2.1.11-1 · all · bookworm
  Affected
  nvd · hdrhistogram · debian · bookworm; nvd · hdrhistogram · debian · 12
- 2.1.11-1 · all · bookworm
  Affected
  nvd · hdrhistogram · debian · bookworm; nvd · hdrhistogram · debian · 12

[Debian 13 (Trixie)]

[libhdrhistogram-java]Affected
Source package: [hdrhistogram]
Details (2)
- 2.1.11-1 · all · trixie
  Affected
  nvd · hdrhistogram · debian · 13
- 2.1.11-1 · all · trixie
  Affected
  nvd · hdrhistogram · debian · 13

Observed: Oct 23, 2026, 9:45:35 PM UTC

References

[Debian Security Tracker] · [FIRST EPSS] · [National Vulnerability Database (NVD)] · [OSV Package Vulnerability Database] · [Red Hat security advisories and VEX]