UBUNTU-CVE-2026-48853

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Source

https://ubuntu.com/security/CVE-2026-48853

Import Source

https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-48853.json

JSON Data

https://api.test.osv.dev/v1/vulns/UBUNTU-CVE-2026-48853

Upstream

CVE-2026-48853

Published

2026-06-15T23:16:00Z

Modified

2026-06-24T11:01:42.468947628Z

Severity

9.2 (Critical) CVSS_V4 - CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N CVSS Calculator
Ubuntu - medium

Summary

[none]

Details

Deserialization of Untrusted Data and Allocation of Resources Without Limits or Throttling vulnerabilities in elixir-grpc grpc allow unauthenticated attackers to crash the BEAM node via atom table exhaustion and, when a decoded term flows into a call site that invokes it, achieve remote code execution on the server. 'Elixir.GRPC.Codec.Erlpack':decode/2 (lib/grpc/codec/erlpack.ex) calls :erlang.binarytoterm/1 on the raw gRPC message body without the :safe option, no size bound, and no type guard. Any unauthenticated peer that sends a request with Content-Type: application/grpc+erlpack can send a crafted payload that mints arbitrary new atoms (which are never garbage-collected, exhausting the bounded atom table and crashing the VM) or that encodes a fun term which, if applied anywhere downstream, executes attacker-controlled code inside the server process. This issue affects grpc from 0.4.0 before 1.0.0.

References

Affected packages

Ubuntu:16.04:LTS

grpc

Package

Name: grpc
Purl: pkg:deb/ubuntu/grpc?arch=source&distro=xenial

Affected ranges

Type: ECOSYSTEM
Events: Introduced

0Unknown introduced version / All previous versions are affected

Affected versions

0.*

0.10.2-1

0.11.1-1

Ecosystem specific

{
    "binaries": [
        {
            "binary_name": "libgrpc0",
            "binary_version": "0.11.1-1"
        }
    ]
}

Database specific

source

"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-48853.json"

Ubuntu:18.04:LTS

grpc

Package

Name: grpc
Purl: pkg:deb/ubuntu/grpc?arch=source&distro=bionic

Affected ranges

Type: ECOSYSTEM
Events: Introduced

0Unknown introduced version / All previous versions are affected

Affected versions

1.*

1.3.2-1

1.3.2-1ubuntu1

1.3.2-1.1~build1

Ecosystem specific

{
    "binaries": [
        {
            "binary_name": "libgrpc++1",
            "binary_version": "1.3.2-1.1~build1"
        },
        {
            "binary_name": "libgrpc3",
            "binary_version": "1.3.2-1.1~build1"
        },
        {
            "binary_name": "protobuf-compiler-grpc",
            "binary_version": "1.3.2-1.1~build1"
        }
    ]
}

Database specific

source

"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-48853.json"

Ubuntu:20.04:LTS

grpc

Package

Name: grpc
Purl: pkg:deb/ubuntu/grpc?arch=source&distro=focal

Affected ranges

Type: ECOSYSTEM
Events: Introduced

0Unknown introduced version / All previous versions are affected

Affected versions

1.*

1.16.1-1

1.16.1-1ubuntu1

1.16.1-1ubuntu3

1.16.1-1ubuntu4

1.16.1-1ubuntu5

Ecosystem specific

{
    "binaries": [
        {
            "binary_name": "libgrpc++1",
            "binary_version": "1.16.1-1ubuntu5"
        },
        {
            "binary_name": "libgrpc6",
            "binary_version": "1.16.1-1ubuntu5"
        },
        {
            "binary_name": "protobuf-compiler-grpc",
            "binary_version": "1.16.1-1ubuntu5"
        },
        {
            "binary_name": "python3-grpcio",
            "binary_version": "1.16.1-1ubuntu5"
        },
        {
            "binary_name": "ruby-grpc",
            "binary_version": "1.16.1-1ubuntu5"
        },
        {
            "binary_name": "ruby-grpc-tools",
            "binary_version": "1.16.1-1ubuntu5"
        }
    ]
}

Database specific

source

"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-48853.json"

Ubuntu:22.04:LTS

grpc

Package

Name: grpc
Purl: pkg:deb/ubuntu/grpc?arch=source&distro=jammy

Affected ranges

Type: ECOSYSTEM
Events: Introduced

0Unknown introduced version / All previous versions are affected

Affected versions

1.*

1.30.2-3

1.30.2-3build1

1.30.2-3build3

1.30.2-3build5

1.30.2-3build6

Ecosystem specific

{
    "binaries": [
        {
            "binary_name": "libgrpc++1",
            "binary_version": "1.30.2-3build6"
        },
        {
            "binary_name": "libgrpc10",
            "binary_version": "1.30.2-3build6"
        },
        {
            "binary_name": "protobuf-compiler-grpc",
            "binary_version": "1.30.2-3build6"
        },
        {
            "binary_name": "python3-grpcio",
            "binary_version": "1.30.2-3build6"
        },
        {
            "binary_name": "ruby-grpc",
            "binary_version": "1.30.2-3build6"
        },
        {
            "binary_name": "ruby-grpc-tools",
            "binary_version": "1.30.2-3build6"
        }
    ]
}

Database specific

source

"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-48853.json"

Ubuntu:24.04:LTS

grpc

Package

Name: grpc
Purl: pkg:deb/ubuntu/grpc?arch=source&distro=noble

Affected ranges

Type: ECOSYSTEM
Events: Introduced

0Unknown introduced version / All previous versions are affected

Affected versions

1.*

1.51.1-3build3

1.51.1-3build4

1.51.1-4

1.51.1-4build1

1.51.1-4build2

1.51.1-4.1build3

1.51.1-4.1build4

1.51.1-4.1build5

Ecosystem specific

{
    "binaries": [
        {
            "binary_name": "libgrpc++1.51t64",
            "binary_version": "1.51.1-4.1build5"
        },
        {
            "binary_name": "libgrpc29t64",
            "binary_version": "1.51.1-4.1build5"
        },
        {
            "binary_name": "protobuf-compiler-grpc",
            "binary_version": "1.51.1-4.1build5"
        },
        {
            "binary_name": "python3-grpcio",
            "binary_version": "1.51.1-4.1build5"
        },
        {
            "binary_name": "ruby-grpc",
            "binary_version": "1.51.1-4.1build5"
        },
        {
            "binary_name": "ruby-grpc-tools",
            "binary_version": "1.51.1-4.1build5"
        }
    ]
}

Database specific

source

"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-48853.json"

Ubuntu:25.10

grpc

Package

Name: grpc
Purl: pkg:deb/ubuntu/grpc?arch=source&distro=questing

Affected ranges

Type: ECOSYSTEM
Events: Introduced

0Unknown introduced version / All previous versions are affected

Affected versions

1.*

1.51.1-6

1.51.1-6build1

Ecosystem specific

{
    "binaries": [
        {
            "binary_name": "libgrpc++1.51t64",
            "binary_version": "1.51.1-6build1"
        },
        {
            "binary_name": "libgrpc29t64",
            "binary_version": "1.51.1-6build1"
        },
        {
            "binary_name": "protobuf-compiler-grpc",
            "binary_version": "1.51.1-6build1"
        },
        {
            "binary_name": "python3-grpcio",
            "binary_version": "1.51.1-6build1"
        },
        {
            "binary_name": "ruby-grpc",
            "binary_version": "1.51.1-6build1"
        },
        {
            "binary_name": "ruby-grpc-tools",
            "binary_version": "1.51.1-6build1"
        }
    ]
}

Database specific

source

"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-48853.json"

Ubuntu:26.04:LTS

grpc

Package

Name: grpc
Purl: pkg:deb/ubuntu/grpc?arch=source&distro=resolute

Affected ranges

Type: ECOSYSTEM
Events: Introduced

0Unknown introduced version / All previous versions are affected

Affected versions

1.*

1.51.1-6build1

1.51.1-7

1.51.1-7ubuntu2

1.51.1-7ubuntu3

1.51.1-8ubuntu1

Ecosystem specific

{
    "binaries": [
        {
            "binary_name": "libgrpc++1.51t64",
            "binary_version": "1.51.1-8ubuntu1"
        },
        {
            "binary_name": "libgrpc29t64",
            "binary_version": "1.51.1-8ubuntu1"
        },
        {
            "binary_name": "protobuf-compiler-grpc",
            "binary_version": "1.51.1-8ubuntu1"
        },
        {
            "binary_name": "python3-grpcio",
            "binary_version": "1.51.1-8ubuntu1"
        },
        {
            "binary_name": "ruby-grpc",
            "binary_version": "1.51.1-8ubuntu1"
        },
        {
            "binary_name": "ruby-grpc-tools",
            "binary_version": "1.51.1-8ubuntu1"
        }
    ]
}

Database specific

source

"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-48853.json"