cvelistv5 - cve-2026-56819

CVE-2026-56819 (GCVE-0-2026-56819)

Vulnerability from cvelistv5

Published

2026-07-21 22:11

Modified

2026-07-23 13:55

Severity ?

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

CWE

CWE-400 - Uncontrolled Resource Consumption
CWE-401 - Missing Release of Memory after Effective Lifetime

Summary

Netty is a network application framework for development of protocol servers and clients. In versions 4.2.0.Final through 4.2.15.Final and 4.1.0.Final through 4.1.135.Final, a remote unauthenticated peer can leak one direct `ByteBuf` per HTTP/2 `DATA` frame in applications that enable HTTP/2 content decompression via `DelegatingDecompressorFrameListener`. When a `DATA` frame is processed for a stream whose decompressor has already been closed, `Http2Decompressor.decompress(...)` calls `decompressor.writeInbound(data.retain())` and does not release the retained buffer on the error path, eventually exhausting direct memory and crashing the JVM. This issue is fixed in versions 4.1.136.Final and 4.2.16.Final.

References

URL

Tags

	https://github.com/netty/netty/security/advisories/GHSA-93wv-jw9v-4972	x_refsource_CONFIRM
	https://github.com/netty/netty/commit/5b68c61f37aa4a3045cba624cbea239655c9003b	x_refsource_MISC
	https://github.com/netty/netty/commit/bb2ff68a1fb71cb4b0eb9a9e17b66c52aff680c6	x_refsource_MISC
	https://github.com/netty/netty/releases/tag/netty-4.1.136.Final	x_refsource_MISC
	https://github.com/netty/netty/releases/tag/netty-4.2.16.Final	x_refsource_MISC

Impacted products

	Vendor	Product	Version
	netty	netty	Version: >= 4.2.0.Final, < 4.2.16.Final Version: >= 4.1.0.Final, < 4.1.136.Final

Show details on NVD website

JSON

To clipboard

{
  "containers": {
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      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2026-56819",
                "options": [
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                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-07-23T13:55:20.959839Z",
                "version": "2.0.3"
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        "title": "CISA ADP Vulnrichment"
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    "cna": {
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              "version": "\u003e= 4.2.0.Final, \u003c 4.2.16.Final"
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              "status": "affected",
              "version": "\u003e= 4.1.0.Final, \u003c 4.1.136.Final"
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      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "Netty is a network application framework for development of protocol servers and clients. In versions 4.2.0.Final through 4.2.15.Final and 4.1.0.Final through 4.1.135.Final, a remote unauthenticated peer can leak one direct `ByteBuf` per HTTP/2 `DATA` frame in applications that enable HTTP/2 content decompression via `DelegatingDecompressorFrameListener`. When a `DATA` frame is processed for a stream whose decompressor has already been closed, `Http2Decompressor.decompress(...)` calls `decompressor.writeInbound(data.retain())` and does not release the retained buffer on the error path, eventually exhausting direct memory and crashing the JVM. This issue is fixed in versions 4.1.136.Final and 4.2.16.Final."
        }
      ],
      "metrics": [
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          "cvssV3_1": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "HIGH",
            "baseScore": 7.5,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "NONE",
            "integrityImpact": "NONE",
            "privilegesRequired": "NONE",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
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        },
        {
          "descriptions": [
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              "type": "CWE"
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      "providerMetadata": {
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          ],
          "url": "https://github.com/netty/netty/security/advisories/GHSA-93wv-jw9v-4972"
        },
        {
          "name": "https://github.com/netty/netty/commit/5b68c61f37aa4a3045cba624cbea239655c9003b",
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          ],
          "url": "https://github.com/netty/netty/commit/bb2ff68a1fb71cb4b0eb9a9e17b66c52aff680c6"
        },
        {
          "name": "https://github.com/netty/netty/releases/tag/netty-4.1.136.Final",
          "tags": [
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          ],
          "url": "https://github.com/netty/netty/releases/tag/netty-4.1.136.Final"
        },
        {
          "name": "https://github.com/netty/netty/releases/tag/netty-4.2.16.Final",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/netty/netty/releases/tag/netty-4.2.16.Final"
        }
      ],
      "source": {
        "advisory": "GHSA-93wv-jw9v-4972",
        "discovery": "UNKNOWN"
      },
      "title": "Netty: HTTP/2 decompression leaks ByteBuf reference count when the decompressor channel is already closed (Direct memory leak / OOM DoS)"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
    "assignerShortName": "GitHub_M",
    "cveId": "CVE-2026-56819",
    "datePublished": "2026-07-21T22:11:17.470Z",
    "dateReserved": "2026-06-23T14:55:09.116Z",
    "dateUpdated": "2026-07-23T13:55:29.793Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2",
  "vulnerability-lookup:meta": {
    "vulnrichment": {
      "containers": "{\"adp\": [{\"title\": \"CISA ADP Vulnrichment\", \"metrics\": [{\"other\": {\"type\": \"ssvc\", \"content\": {\"id\": \"CVE-2026-56819\", \"role\": \"CISA Coordinator\", \"options\": [{\"Exploitation\": \"poc\"}, {\"Automatable\": \"yes\"}, {\"Technical Impact\": \"partial\"}], \"version\": \"2.0.3\", \"timestamp\": \"2026-07-23T13:55:20.959839Z\"}}}], \"references\": [{\"url\": \"https://github.com/netty/netty/security/advisories/GHSA-93wv-jw9v-4972\", \"tags\": [\"exploit\"]}], \"providerMetadata\": {\"orgId\": \"134c704f-9b21-4f2e-91b3-4a467353bcc0\", \"shortName\": \"CISA-ADP\", \"dateUpdated\": \"2026-07-23T13:55:08.467Z\"}}], \"cna\": {\"title\": \"Netty: HTTP/2 decompression leaks ByteBuf reference count when the decompressor channel is already closed (Direct memory leak / OOM DoS)\", \"source\": {\"advisory\": \"GHSA-93wv-jw9v-4972\", \"discovery\": \"UNKNOWN\"}, \"metrics\": [{\"cvssV3_1\": {\"scope\": \"UNCHANGED\", \"version\": \"3.1\", \"baseScore\": 7.5, \"attackVector\": \"NETWORK\", \"baseSeverity\": \"HIGH\", \"vectorString\": \"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H\", \"integrityImpact\": \"NONE\", \"userInteraction\": \"NONE\", \"attackComplexity\": \"LOW\", \"availabilityImpact\": \"HIGH\", \"privilegesRequired\": \"NONE\", \"confidentialityImpact\": \"NONE\"}}], \"affected\": [{\"vendor\": \"netty\", \"product\": \"netty\", \"versions\": [{\"status\": \"affected\", \"version\": \"\u003e= 4.2.0.Final, \u003c 4.2.16.Final\"}, {\"status\": \"affected\", \"version\": \"\u003e= 4.1.0.Final, \u003c 4.1.136.Final\"}]}], \"references\": [{\"url\": \"https://github.com/netty/netty/security/advisories/GHSA-93wv-jw9v-4972\", \"name\": \"https://github.com/netty/netty/security/advisories/GHSA-93wv-jw9v-4972\", \"tags\": [\"x_refsource_CONFIRM\"]}, {\"url\": \"https://github.com/netty/netty/commit/5b68c61f37aa4a3045cba624cbea239655c9003b\", \"name\": \"https://github.com/netty/netty/commit/5b68c61f37aa4a3045cba624cbea239655c9003b\", \"tags\": [\"x_refsource_MISC\"]}, {\"url\": \"https://github.com/netty/netty/commit/bb2ff68a1fb71cb4b0eb9a9e17b66c52aff680c6\", \"name\": \"https://github.com/netty/netty/commit/bb2ff68a1fb71cb4b0eb9a9e17b66c52aff680c6\", \"tags\": [\"x_refsource_MISC\"]}, {\"url\": \"https://github.com/netty/netty/releases/tag/netty-4.1.136.Final\", \"name\": \"https://github.com/netty/netty/releases/tag/netty-4.1.136.Final\", \"tags\": [\"x_refsource_MISC\"]}, {\"url\": \"https://github.com/netty/netty/releases/tag/netty-4.2.16.Final\", \"name\": \"https://github.com/netty/netty/releases/tag/netty-4.2.16.Final\", \"tags\": [\"x_refsource_MISC\"]}], \"descriptions\": [{\"lang\": \"en\", \"value\": \"Netty is a network application framework for development of protocol servers and clients. In versions 4.2.0.Final through 4.2.15.Final and 4.1.0.Final through 4.1.135.Final, a remote unauthenticated peer can leak one direct `ByteBuf` per HTTP/2 `DATA` frame in applications that enable HTTP/2 content decompression via `DelegatingDecompressorFrameListener`. When a `DATA` frame is processed for a stream whose decompressor has already been closed, `Http2Decompressor.decompress(...)` calls `decompressor.writeInbound(data.retain())` and does not release the retained buffer on the error path, eventually exhausting direct memory and crashing the JVM. This issue is fixed in versions 4.1.136.Final and 4.2.16.Final.\"}], \"problemTypes\": [{\"descriptions\": [{\"lang\": \"en\", \"type\": \"CWE\", \"cweId\": \"CWE-400\", \"description\": \"CWE-400: Uncontrolled Resource Consumption\"}]}, {\"descriptions\": [{\"lang\": \"en\", \"type\": \"CWE\", \"cweId\": \"CWE-401\", \"description\": \"CWE-401: Missing Release of Memory after Effective Lifetime\"}]}], \"providerMetadata\": {\"orgId\": \"a0819718-46f1-4df5-94e2-005712e83aaa\", \"shortName\": \"GitHub_M\", \"dateUpdated\": \"2026-07-22T15:24:49.094Z\"}}}",
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CERTFR-2026-AVI-0991

Vulnerability from certfr_avis

De multiples vulnérabilités ont été découvertes dans VMware Tanzu Greenplum. Elles permettent à un attaquant de provoquer un problème de sécurité non spécifié par l'éditeur.

Solutions

Se référer au bulletin de sécurité de l'éditeur pour l'obtention des correctifs (cf. section Documentation).

Impacted products

	Vendor	Product	Description
	VMware	Tanzu Greenplum	Tanzu Greenplum Platform Extension Framework versions antérieures à 8.0.3

References

Title

Publication Time

Tags

Bulletin de sécurité VMware 38158

2026-08-08

vendor-advisory

Show details on source website

JSON

To clipboard

{
  "$ref": "https://www.cert.ssi.gouv.fr/openapi.json",
  "affected_systems": [
    {
      "description": "Tanzu Greenplum Platform Extension Framework versions ant\u00e9rieures \u00e0 8.0.3",
      "product": {
        "name": "Tanzu Greenplum",
        "vendor": {
          "name": "VMware",
          "scada": false
        }
      }
    }
  ],
  "affected_systems_content": "",
  "content": "## Solutions\n\nSe r\u00e9f\u00e9rer au bulletin de s\u00e9curit\u00e9 de l\u0027\u00e9diteur pour l\u0027obtention des correctifs (cf. section Documentation).",
  "cves": [
    {
      "name": "CVE-2026-59921",
      "url": "https://www.cve.org/CVERecord?id=CVE-2026-59921"
    },
    {
      "name": "CVE-2026-59901",
      "url": "https://www.cve.org/CVERecord?id=CVE-2026-59901"
    },
    {
      "name": "CVE-2020-13949",
      "url": "https://www.cve.org/CVERecord?id=CVE-2020-13949"
    },
    {
      "name": "CVE-2026-55831",
      "url": "https://www.cve.org/CVERecord?id=CVE-2026-55831"
    },
    {
      "name": "CVE-2026-56746",
      "url": "https://www.cve.org/CVERecord?id=CVE-2026-56746"
    },
    {
      "name": "CVE-2018-11798",
      "url": "https://www.cve.org/CVERecord?id=CVE-2018-11798"
    },
    {
      "name": "CVE-2026-59900",
      "url": "https://www.cve.org/CVERecord?id=CVE-2026-59900"
    },
    {
      "name": "CVE-2026-59898",
      "url": "https://www.cve.org/CVERecord?id=CVE-2026-59898"
    },
    {
      "name": "CVE-2026-45205",
      "url": "https://www.cve.org/CVERecord?id=CVE-2026-45205"
    },
    {
      "name": "CVE-2019-0205",
      "url": "https://www.cve.org/CVERecord?id=CVE-2019-0205"
    },
    {
      "name": "CVE-2026-56745",
      "url": "https://www.cve.org/CVERecord?id=CVE-2026-56745"
    },
    {
      "name": "CVE-2026-43869",
      "url": "https://www.cve.org/CVERecord?id=CVE-2026-43869"
    },
    {
      "name": "CVE-2026-54291",
      "url": "https://www.cve.org/CVERecord?id=CVE-2026-54291"
    },
    {
      "name": "CVE-2026-55833",
      "url": "https://www.cve.org/CVERecord?id=CVE-2026-55833"
    },
    {
      "name": "CVE-2026-56819",
      "url": "https://www.cve.org/CVERecord?id=CVE-2026-56819"
    },
    {
      "name": "CVE-2026-59899",
      "url": "https://www.cve.org/CVERecord?id=CVE-2026-59899"
    }
  ],
  "initial_release_date": "2026-08-10T00:00:00",
  "last_revision_date": "2026-08-10T00:00:00",
  "links": [],
  "reference": "CERTFR-2026-AVI-0991",
  "revisions": [
    {
      "description": "Version initiale",
      "revision_date": "2026-08-10T00:00:00.000000"
    }
  ],
  "risks": [
    {
      "description": "Non sp\u00e9cifi\u00e9 par l\u0027\u00e9diteur"
    }
  ],
  "summary": "De multiples vuln\u00e9rabilit\u00e9s ont \u00e9t\u00e9 d\u00e9couvertes dans VMware Tanzu Greenplum. Elles permettent \u00e0 un attaquant de provoquer un probl\u00e8me de s\u00e9curit\u00e9 non sp\u00e9cifi\u00e9 par l\u0027\u00e9diteur.",
  "title": "Multiples vuln\u00e9rabilit\u00e9s dans VMware Tanzu Greenplum",
  "vendor_advisories": [
    {
      "published_at": "2026-08-08",
      "title": "Bulletin de s\u00e9curit\u00e9 VMware 38158",
      "url": "https://support.broadcom.com/web/ecx/support-content-notification/-/external/content/SecurityAdvisories/0/38158"
    }
  ]
}

Sightings

Author	Source	Type	Date

Nomenclature

Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
Confirmed: The vulnerability is confirmed from an analyst perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
Patched: This vulnerability was successfully patched by the user reporting the sighting.
Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
Not confirmed: The user expresses doubt about the veracity of the vulnerability.
Not patched: This vulnerability was not successfully patched by the user reporting the sighting.

Action not permitted

CVE-2026-56819 (GCVE-0-2026-56819)

Vulnerability from cvelistv5

CERTFR-2026-AVI-0991

Vulnerability from certfr_avis

Solutions

Tags

Sightings

Nomenclature