CVE-2026-14683 (GCVE-0-2026-14683)

Vulnerability from cvelistv5 – Published: 2026-07-04 23:00 – Updated: 2026-07-04 23:00
VLAI
Title
HdrHistogram AbstractHistogram.java memory allocation
Summary
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.
Severity
4.8 (Medium)
CVSS: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
3.3 (Low)
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
3.3 (Low)
CVSS:3.0/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L/E:P/RL:X/RC:R
CWE
  • CWE-789 - Uncontrolled Memory Allocation
  • CWE-400 - Resource Consumption
Assigner
References
Impacted products
Vendor Product Version
n/a HdrHistogram Affected: 2.2.0
Affected: 2.2.1
Affected: 2.2.2
    cpe:2.3:a:hdrhistogram:hdrhistogram:*:*:*:*:*:*:*:*
Credits
sara11h (VulDB User) VulDB CNA Team
Show details on NVD website
To clipboard 

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        {
          "cpes": [
            "cpe:2.3:a:hdrhistogram:hdrhistogram:*:*:*:*:*:*:*:*"
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          "product": "HdrHistogram",
          "vendor": "n/a",
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              "status": "affected",
              "version": "2.2.0"
            },
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              "version": "2.2.1"
            },
            {
              "status": "affected",
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            }
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          "type": "reporter",
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        }
      ],
      "metrics": [
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          "tags": [
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          "url": "https://vuldb.com/vuln/376279/cti"
        },
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          "name": "CVE-2026-14683 | CVE Analysis and Report",
          "tags": [
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          ],
          "url": "https://vuldb.com/cve/CVE-2026-14683"
        },
        {
          "name": "Submit #846750 | HdrHistogram 2.2.2 Denial of Service",
          "tags": [
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          ],
          "url": "https://vuldb.com/submit/846750"
        },
        {
          "name": "Submit #846752 | HdrHistogram 2.2.2 Denial of Service (Duplicate)",
          "tags": [
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          ],
          "url": "https://vuldb.com/submit/846752"
        },
        {
          "tags": [
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          ],
          "url": "https://github.com/HdrHistogram/HdrHistogram/issues/219"
        },
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          "url": "https://github.com/HdrHistogram/HdrHistogram/"
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          "value": "VulDB entry created"
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          "lang": "en",
          "time": "2026-07-04T06:45:00.000Z",
          "value": "VulDB entry last update"
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      "title": "HdrHistogram AbstractHistogram.java memory allocation"
    }
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  "cveMetadata": {
    "assignerOrgId": "1af790b2-7ee1-4545-860a-a788eba489b5",
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    "dateReserved": "2026-07-04T04:39:55.742Z",
    "dateUpdated": "2026-07-04T23:00:10.759Z",
    "state": "PUBLISHED"
  },
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  "dataVersion": "5.2",
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      "date": "2026-07-05",
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      "percentile": "0.01975"
    },
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  }
}


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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

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Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.


Detection rules are retrieved from Rulezet.