{
    "dataType": "CVE_RECORD",
    "dataVersion": "5.2",
    "cveMetadata": {
        "cveId": "CVE-2026-48853",
        "assignerOrgId": "6b3ad84c-e1a6-4bf7-a703-f496b71e49db",
        "state": "PUBLISHED",
        "assignerShortName": "EEF",
        "dateReserved": "2026-05-25T20:44:10.696Z",
        "datePublished": "2026-06-15T21:56:15.262Z",
        "dateUpdated": "2026-09-24T21:08:47.457Z"
    },
    "containers": {
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            "affected": [
                {
                    "collectionURL": "https://repo.hex.pm",
                    "cpes": [
                        "cpe:2.3:a:elixir-grpc:grpc:*:*:*:*:*:*:*:*"
                    ],
                    "defaultStatus": "unaffected",
                    "modules": [
                        "'Elixir.GRPC.Codec.Erlpack'"
                    ],
                    "packageName": "grpc",
                    "packageURL": "pkg:hex/grpc",
                    "product": "grpc",
                    "programFiles": [
                        "lib/grpc/codec/erlpack.ex"
                    ],
                    "programRoutines": [
                        {
                            "name": "'Elixir.GRPC.Codec.Erlpack':decode/2"
                        }
                    ],
                    "repo": "https://github.com/elixir-grpc/grpc",
                    "vendor": "elixir-grpc",
                    "versions": [
                        {
                            "lessThan": "1.0.0",
                            "status": "affected",
                            "version": "0.4.0",
                            "versionType": "semver"
                        }
                    ]
                },
                {
                    "collectionURL": "https://github.com",
                    "cpes": [
                        "cpe:2.3:a:elixir-grpc:grpc:*:*:*:*:*:*:*:*"
                    ],
                    "defaultStatus": "unaffected",
                    "modules": [
                        "'Elixir.GRPC.Codec.Erlpack'"
                    ],
                    "packageName": "elixir-grpc/grpc",
                    "packageURL": "pkg:github/elixir-grpc/grpc",
                    "product": "grpc",
                    "programFiles": [
                        "lib/grpc/codec/erlpack.ex"
                    ],
                    "programRoutines": [
                        {
                            "name": "'Elixir.GRPC.Codec.Erlpack':decode/2"
                        }
                    ],
                    "repo": "https://github.com/elixir-grpc/grpc",
                    "vendor": "elixir-grpc",
                    "versions": [
                        {
                            "lessThan": "272a97a5ea1b46af1819f14a831fcf35fc91f992",
                            "status": "affected",
                            "version": "25bcc569fe2cc4478531a6c546c923205fc751c9",
                            "versionType": "git"
                        }
                    ]
                }
            ],
            "configurations": [
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                            "type": "text/html",
                            "value": "<p><code>GRPC.Codec.Erlpack</code> must be explicitly registered as a codec on the gRPC server.</p>"
                        },
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                            "base64": false,
                            "type": "text/markdown",
                            "value": "`GRPC.Codec.Erlpack` must be explicitly registered as a codec on the gRPC server."
                        }
                    ],
                    "value": "GRPC.Codec.Erlpack must be explicitly registered as a codec on the gRPC server."
                }
            ],
            "cpeApplicability": [
                {
                    "nodes": [
                        {
                            "cpeMatch": [
                                {
                                    "criteria": "cpe:2.3:a:elixir-grpc:grpc:*:*:*:*:*:*:*:*",
                                    "versionEndExcluding": "1.0.0",
                                    "versionStartIncluding": "0.4.0",
                                    "vulnerable": true
                                }
                            ],
                            "negate": false,
                            "operator": "OR"
                        }
                    ],
                    "operator": "AND"
                }
            ],
            "credits": [
                {
                    "lang": "en",
                    "type": "finder",
                    "value": "Peter Ullrich"
                },
                {
                    "lang": "en",
                    "type": "remediation developer",
                    "value": "Paulo Valente"
                },
                {
                    "lang": "en",
                    "type": "analyst",
                    "value": "Jonatan Männchen / EEF"
                }
            ],
            "datePublic": "2026-06-15T21:56:15.000Z",
            "descriptions": [
                {
                    "lang": "en",
                    "supportingMedia": [
                        {
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                            "type": "text/html",
                            "value": "<p>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.</p>\n<p><code>'Elixir.GRPC.Codec.Erlpack':decode/2</code> (<code>lib/grpc/codec/erlpack.ex</code>) calls <code>:erlang.binary_to_term/1</code> on the raw gRPC message body without the <code>:safe</code> option, no size bound, and no type guard. Any unauthenticated peer that sends a request with <code>Content-Type: application/grpc+erlpack</code> 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.</p>\n<p>This issue affects grpc: from 0.4.0 before 1.0.0.</p>"
                        },
                        {
                            "base64": false,
                            "type": "text/markdown",
                            "value": "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.\n\n`'Elixir.GRPC.Codec.Erlpack':decode/2` (`lib/grpc/codec/erlpack.ex`) calls `:erlang.binary_to_term/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.\n\nThis issue affects grpc: from 0.4.0 before 1.0.0."
                        }
                    ],
                    "value": "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.\n\n'Elixir.GRPC.Codec.Erlpack':decode/2 (lib/grpc/codec/erlpack.ex) calls :erlang.binary_to_term/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.\n\nThis issue affects grpc: from 0.4.0 before 1.0.0."
                }
            ],
            "impacts": [
                {
                    "capecId": "CAPEC-586",
                    "descriptions": [
                        {
                            "lang": "en",
                            "value": "CAPEC-586 Object Injection"
                        }
                    ]
                },
                {
                    "capecId": "CAPEC-231",
                    "descriptions": [
                        {
                            "lang": "en",
                            "value": "CAPEC-231 Oversized Serialized Data Payloads"
                        }
                    ]
                }
            ],
            "metrics": [
                {
                    "cvssV4_0": {
                        "Automatable": "NOT_DEFINED",
                        "Recovery": "NOT_DEFINED",
                        "Safety": "NOT_DEFINED",
                        "attackComplexity": "LOW",
                        "attackRequirements": "PRESENT",
                        "attackVector": "NETWORK",
                        "baseScore": 9.2,
                        "baseSeverity": "CRITICAL",
                        "privilegesRequired": "NONE",
                        "providerUrgency": "NOT_DEFINED",
                        "subAvailabilityImpact": "NONE",
                        "subConfidentialityImpact": "NONE",
                        "subIntegrityImpact": "NONE",
                        "userInteraction": "NONE",
                        "valueDensity": "NOT_DEFINED",
                        "vectorString": "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",
                        "version": "4.0",
                        "vulnAvailabilityImpact": "HIGH",
                        "vulnConfidentialityImpact": "HIGH",
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                        "vulnerabilityResponseEffort": "NOT_DEFINED"
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                    "format": "CVSS",
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                            "lang": "en",
                            "value": "GENERAL"
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            ],
            "problemTypes": [
                {
                    "descriptions": [
                        {
                            "cweId": "CWE-502",
                            "description": "CWE-502 Deserialization of Untrusted Data",
                            "lang": "en",
                            "type": "CWE"
                        }
                    ]
                },
                {
                    "descriptions": [
                        {
                            "cweId": "CWE-770",
                            "description": "CWE-770 Allocation of Resources Without Limits or Throttling",
                            "lang": "en",
                            "type": "CWE"
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                }
            ],
            "providerMetadata": {
                "orgId": "6b3ad84c-e1a6-4bf7-a703-f496b71e49db",
                "shortName": "EEF",
                "dateUpdated": "2026-09-24T21:08:47.457Z"
            },
            "references": [
                {
                    "tags": [
                        "vendor-advisory",
                        "related"
                    ],
                    "url": "https://github.com/elixir-grpc/grpc/security/advisories/GHSA-grp7-v8xh-rj7h"
                },
                {
                    "name": "EEF CNA record for CVE-2026-48853",
                    "tags": [
                        "related"
                    ],
                    "url": "https://cna.erlef.org/cves/CVE-2026-48853.html"
                },
                {
                    "name": "OSV record EEF-CVE-2026-48853",
                    "tags": [
                        "related"
                    ],
                    "url": "https://osv.dev/vulnerability/EEF-CVE-2026-48853"
                },
                {
                    "name": "Introducing commit 25bcc56 in elixir-grpc/grpc",
                    "tags": [
                        "related"
                    ],
                    "url": "https://github.com/elixir-grpc/grpc/commit/25bcc569fe2cc4478531a6c546c923205fc751c9"
                },
                {
                    "name": "Fix commit 272a97a in elixir-grpc/grpc",
                    "tags": [
                        "patch"
                    ],
                    "url": "https://github.com/elixir-grpc/grpc/commit/272a97a5ea1b46af1819f14a831fcf35fc91f992"
                }
            ],
            "source": {
                "discovery": "EXTERNAL"
            },
            "title": "Remote code execution and denial of service via unsafe Erlang term deserialization in elixir-grpc/grpc"
        },
        "adp": [
            {
                "references": [
                    {
                        "url": "https://github.com/elixir-grpc/grpc/security/advisories/GHSA-grp7-v8xh-rj7h",
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                "metrics": [
                    {
                        "other": {
                            "type": "ssvc",
                            "content": {
                                "timestamp": "2026-06-16T14:44:19.175606Z",
                                "id": "CVE-2026-48853",
                                "options": [
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                                        "Exploitation": "poc"
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                                        "Automatable": "yes"
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                                        "Technical Impact": "total"
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                                "role": "CISA Coordinator",
                                "version": "2.0.3"
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                "title": "CISA ADP Vulnrichment",
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}