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DEBIAN-CVE-2026-84304

Type: advisorySource: OSV1 source record

gRPC-Go is the Go language implementation of gRPC. Prior to 1.83.1, internal/transport/transport.go stores each fragmented HTTP/2 DATA frame as a separate recvMsg in recvBuffer, so millions of one-byte frames can consume disproportionate heap memory even when payload bytes remain within connection and stream flow-control windows. An unauthenticated remote attacker can use concurrent multiplexed streams to exhaust process memory and cause a runtime panic or out-of-memory termination. Receive-buffer compaction is enabled by default and can be controlled temporarily with GRPC_GO_EXPERIMENTAL_ENABLE_RECEIVE_BUFFER_COMPACTION. This issue is fixed in version 1.83.1.

Announced 1 Sept 2026Source revision 1

Original source ↗

DEBIAN-CVE-2026-84304

Primary source · Revision 1

Imported from structured advisory data. Source references identify upstream records or fields; verify affected versions and your deployed configuration.

Security context

Source reference: osv:DEBIAN-CVE-2026-84304

golang-google-grpc

Source reference: /affected/0/package/name

Affected versions: 1.33.3-2
Source reference: /affected/0/versions
1.38.0+really1.33.3-1
Source reference: /affected/0/versions
1.38.0-1
Source reference: /affected/0/versions
1.38.0-2
Source reference: /affected/0/versions
1.38.0-3
Source reference: /affected/0/versions
1.38.0-4
Source reference: /affected/0/versions
1.38.0-5
Source reference: /affected/0/versions
1.38.1-1
Source reference: /affected/0/versions
1.59.0-1
Source reference: /affected/0/versions
1.60.1-1
Source reference: /affected/0/versions
1.60.1-2
Source reference: /affected/0/versions
1.64.0-1
Source reference: /affected/0/versions
1.64.0-2
Source reference: /affected/0/versions
1.64.0-3
Source reference: /affected/0/versions
1.64.0-4
Source reference: /affected/0/versions
1.64.0-5
Source reference: /affected/0/versions
1.64.0-6
Source reference: /affected/0/versions
1.64.0-7
Source reference: /affected/0/versions
1.66.3-1
Source reference: /affected/0/versions
1.66.3-2
Source reference: /affected/0/versions
1.75.1-1
Source reference: /affected/0/versions
1.79.3-1
Source reference: /affected/0/versions
1.79.3-1~bpo13+1
Source reference: /affected/0/versions
1.81.1-1
Source reference: /affected/0/versions
Fixed versions: Not stated in this record
Prerequisites: Not stated in this record

golang-google-grpc

Source reference: /affected/1/package/name

Affected versions: 1.64.0-7
Source reference: /affected/1/versions
1.66.3-1
Source reference: /affected/1/versions
1.66.3-2
Source reference: /affected/1/versions
1.75.1-1
Source reference: /affected/1/versions
1.79.3-1
Source reference: /affected/1/versions
1.79.3-1~bpo13+1
Source reference: /affected/1/versions
1.81.1-1
Source reference: /affected/1/versions
Fixed versions: Not stated in this record
Prerequisites: Not stated in this record

golang-google-grpc

Source reference: /affected/2/package/name

Affected versions: 1.64.0-7
Source reference: /affected/2/versions
1.66.3-1
Source reference: /affected/2/versions
1.66.3-2
Source reference: /affected/2/versions
1.75.1-1
Source reference: /affected/2/versions
1.79.3-1
Source reference: /affected/2/versions
1.79.3-1~bpo13+1
Source reference: /affected/2/versions
1.81.1-1
Source reference: /affected/2/versions
Fixed versions: Not stated in this record
Prerequisites: Not stated in this record

Structured affected-version data

Original package identities and version rules from this source.

[
  {
    "ranges": [
      {
        "type": "ECOSYSTEM",
        "events": [
          {
            "introduced": "0"
          }
        ]
      }
    ],
    "package": {
      "name": "golang-google-grpc",
      "purl": "pkg:deb/debian/golang-google-grpc?arch=source&distro=bookworm",
      "ecosystem": "Debian:12"
    },
    "versions": [
      "1.33.3-2",
      "1.38.0+really1.33.3-1",
      "1.38.0-1",
      "1.38.0-2",
      "1.38.0-3",
      "1.38.0-4",
      "1.38.0-5",
      "1.38.1-1",
      "1.59.0-1",
      "1.60.1-1",
      "1.60.1-2",
      "1.64.0-1",
      "1.64.0-2",
      "1.64.0-3",
      "1.64.0-4",
      "1.64.0-5",
      "1.64.0-6",
      "1.64.0-7",
      "1.66.3-1",
      "1.66.3-2",
      "1.75.1-1",
      "1.79.3-1",
      "1.79.3-1~bpo13+1",
      "1.81.1-1"
    ],
    "database_specific": {
      "source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-84304.json"
    },
    "ecosystem_specific": {
      "urgency": "not yet assigned"
    }
  },
  {
    "ranges": [
      {
        "type": "ECOSYSTEM",
        "events": [
          {
            "introduced": "0"
          }
        ]
      }
    ],
    "package": {
      "name": "golang-google-grpc",
      "purl": "pkg:deb/debian/golang-google-grpc?arch=source&distro=trixie",
      "ecosystem": "Debian:13"
    },
    "versions": [
      "1.64.0-7",
      "1.66.3-1",
      "1.66.3-2",
      "1.75.1-1",
      "1.79.3-1",
      "1.79.3-1~bpo13+1",
      "1.81.1-1"
    ],
    "database_specific": {
      "source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-84304.json"
    },
    "ecosystem_specific": {
      "urgency": "not yet assigned"
    }
  },
  {
    "ranges": [
      {
        "type": "ECOSYSTEM",
        "events": [
          {
            "introduced": "0"
          }
        ]
      }
    ],
    "package": {
      "name": "golang-google-grpc",
      "purl": "pkg:deb/debian/golang-google-grpc?arch=source&distro=forky",
      "ecosystem": "Debian:14"
    },
    "versions": [
      "1.64.0-7",
      "1.66.3-1",
      "1.66.3-2",
      "1.75.1-1",
      "1.79.3-1",
      "1.79.3-1~bpo13+1",
      "1.81.1-1"
    ],
    "database_specific": {
      "source": "https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-84304.json"
    },
    "ecosystem_specific": {
      "urgency": "not yet assigned"
    }
  }
]

Publisher severity

No explicit severity was provided.

Event: #58393 · Revision 1
Added to Heist Feed: Sun, 25 Oct 2026 17:57:40 GMT
Publisher date: Tue, 01 Sep 2026 19:17:30 GMT

Read the original announcement