Vulnerability-Lookup

CVE-2024-7765 (GCVE-0-2024-7765)

Vulnerability from cvelistv5 – Published: 2025-03-20 10:08 – Updated: 2025-03-20 14:29

Title

Denial of Service in h2oai/h2o-3

Summary

In h2oai/h2o-3 version 3.46.0.2, a vulnerability exists where uploading and repeatedly parsing a large GZIP file can cause a denial of service. The server becomes unresponsive due to memory exhaustion and a large number of concurrent slow-running jobs. This issue arises from the improper handling of highly compressed data, leading to significant data amplification.

Severity

7.5 (High)


                        
                          CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

SSVC

Exploitation: poc Automatable: yes Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2025-03-20 14:29 UTC

CWE

CWE-409 - Improper Handling of Highly Compressed Data (Data Amplification)

Assigner

@huntr_ai mitre root

References

1 reference

URL	Tags
https://huntr.com/bounties/0e58b1a5-bdca-4e60-af9…

Impacted products

1 product

Vendor	Product	Version	CPE status
h2oai	h2oai/h2o-3	Affected: unspecified , ≤ latest (custom)	guessed

Show details on NVD website

JSON

To clipboard

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FKIE_CVE-2024-7765

Vulnerability from fkie_nvd - Published: 2025-03-20 10:15 - Updated: 2026-06-17 08:20

Severity

7.5 (High) - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Summary

References

	URL	Tags
	security@huntr.dev	https://huntr.com/bounties/0e58b1a5-bdca-4e60-af92-09de9c76a9ff	Exploit
	134c704f-9b21-4f2e-91b3-4a467353bcc0	https://huntr.com/bounties/0e58b1a5-bdca-4e60-af92-09de9c76a9ff	Exploit

Impacted products

	Vendor	Product	Version
	h2o	h2o	3.46.0.2

JSON

To clipboard

{
  "affected": [
    {
      "affectedData": [
        {
          "product": "h2oai/h2o-3",
          "vendor": "h2oai",
          "versions": [
            {
              "lessThanOrEqual": "latest",
              "status": "affected",
              "version": "unspecified",
              "versionType": "custom"
            }
          ]
        }
      ],
      "source": "security@huntr.dev"
    }
  ],
  "configurations": [
    {
      "nodes": [
        {
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              "vulnerable": true
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    },
    {
      "lang": "es",
      "value": "En h2oai/h2o-3 versi\u00f3n 3.46.0.2, existe una vulnerabilidad que provoca una denegaci\u00f3n de servicio al cargar y analizar repetidamente un archivo GZIP de gran tama\u00f1o. El servidor deja de responder debido al agotamiento de la memoria y a un gran n\u00famero de trabajos simult\u00e1neos de ejecuci\u00f3n lenta. Este problema se debe a la gesti\u00f3n inadecuada de datos altamente comprimidos, lo que provoca una amplificaci\u00f3n significativa de los datos."
    }
  ],
  "id": "CVE-2024-7765",
  "lastModified": "2026-06-17T08:20:52.713",
  "metrics": {
    "cvssMetricV30": [
      {
        "cvssData": {
          "attackComplexity": "LOW",
          "attackVector": "NETWORK",
          "availabilityImpact": "HIGH",
          "baseScore": 7.5,
          "baseSeverity": "HIGH",
          "confidentialityImpact": "NONE",
          "integrityImpact": "NONE",
          "privilegesRequired": "NONE",
          "scope": "UNCHANGED",
          "userInteraction": "NONE",
          "vectorString": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
          "version": "3.0"
        },
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        "impactScore": 3.6,
        "source": "security@huntr.dev",
        "type": "Secondary"
      }
    ],
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}

GHSA-6W62-3JVJ-MFJ6

Vulnerability from github – Published: 2025-03-20 12:32 – Updated: 2025-03-20 19:56

Summary

H2O Vulnerable to Denial of Service (DoS) via Large GZIP Parsing

Details

Severity

7.5 (High)


                  
                    CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Show details on source website

JSON

To clipboard

{
  "affected": [
    {
      "package": {
        "ecosystem": "PyPI",
        "name": "h2o"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "3.32.1.2"
            },
            {
              "last_affected": "3.46.0.2"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "Maven",
        "name": "ai.h2o:h2o-core"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "3.32.1.2"
            },
            {
              "last_affected": "3.46.0.2"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2024-7765"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-409"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2025-03-20T19:56:42Z",
    "nvd_published_at": "2025-03-20T10:15:36Z",
    "severity": "HIGH"
  },
  "details": "In h2oai/h2o-3 version 3.46.0.2, a vulnerability exists where uploading and repeatedly parsing a large GZIP file can cause a denial of service. The server becomes unresponsive due to memory exhaustion and a large number of concurrent slow-running jobs. This issue arises from the improper handling of highly compressed data, leading to significant data amplification.",
  "id": "GHSA-6w62-3jvj-mfj6",
  "modified": "2025-03-20T19:56:42Z",
  "published": "2025-03-20T12:32:46Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2024-7765"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/h2oai/h2o-3"
    },
    {
      "type": "WEB",
      "url": "https://github.com/h2oai/h2o-3/blob/7d418fa19d3ab434f742818e37f891bef9102c97/h2o-core/src/main/java/water/parser/ParseDataset.java#L900"
    },
    {
      "type": "WEB",
      "url": "https://huntr.com/bounties/0e58b1a5-bdca-4e60-af92-09de9c76a9ff"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    }
  ],
  "summary": "H2O Vulnerable to Denial of Service (DoS) via Large GZIP Parsing"
}

PYSEC-2026-1439

Vulnerability from pysec - Published: 2026-07-07 14:34 - Updated: 2026-07-07 17:24

Details

Severity

7.5 (High)


                  
                    CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Impacted products

Name	purl
h2o	pkg:pypi/h2o

Aliases

JSON

To clipboard

{
  "affected": [
    {
      "package": {
        "ecosystem": "PyPI",
        "name": "h2o",
        "purl": "pkg:pypi/h2o"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "3.32.1.2"
            },
            {
              "last_affected": "3.46.0.2"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "3.32.1.2",
        "3.32.1.3",
        "3.32.1.4",
        "3.32.1.5",
        "3.32.1.6",
        "3.32.1.7",
        "3.34.0.3",
        "3.34.0.7",
        "3.34.0.8",
        "3.36.0.2",
        "3.36.0.3",
        "3.36.0.4",
        "3.36.1.1",
        "3.36.1.2",
        "3.36.1.3",
        "3.36.1.4",
        "3.36.1.5",
        "3.38.0.1",
        "3.38.0.2",
        "3.38.0.3",
        "3.38.0.4",
        "3.40.0.1",
        "3.40.0.2",
        "3.40.0.3",
        "3.40.0.4",
        "3.42.0.1",
        "3.42.0.2",
        "3.42.0.3",
        "3.42.0.4",
        "3.44.0.1",
        "3.44.0.2",
        "3.44.0.3",
        "3.46.0.1",
        "3.46.0.2"
      ]
    }
  ],
  "aliases": [
    "CVE-2024-7765",
    "GHSA-6w62-3jvj-mfj6"
  ],
  "details": "In h2oai/h2o-3 version 3.46.0.2, a vulnerability exists where uploading and repeatedly parsing a large GZIP file can cause a denial of service. The server becomes unresponsive due to memory exhaustion and a large number of concurrent slow-running jobs. This issue arises from the improper handling of highly compressed data, leading to significant data amplification.",
  "id": "PYSEC-2026-1439",
  "modified": "2026-07-07T17:24:17.505164Z",
  "published": "2026-07-07T14:34:55.579044Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2024-7765"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/h2oai/h2o-3"
    },
    {
      "type": "WEB",
      "url": "https://github.com/h2oai/h2o-3/blob/7d418fa19d3ab434f742818e37f891bef9102c97/h2o-core/src/main/java/water/parser/ParseDataset.java#L900"
    },
    {
      "type": "WEB",
      "url": "https://huntr.com/bounties/0e58b1a5-bdca-4e60-af92-09de9c76a9ff"
    },
    {
      "type": "PACKAGE",
      "url": "https://pypi.org/project/h2o"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/advisories/GHSA-6w62-3jvj-mfj6"
    }
  ],
  "severity": [
    {
      "score": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    }
  ],
  "summary": "H2O Vulnerable to Denial of Service (DoS) via Large GZIP Parsing"
}

Sightings

Author	Source	Type	Date	Other

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.

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.

Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.

Action not permitted

CVE-2024-7765 (GCVE-0-2024-7765)

FKIE_CVE-2024-7765

GHSA-6W62-3JVJ-MFJ6

PYSEC-2026-1439

Tags

Sightings

Nomenclature

Related by attack behaviour