{
    "dataType": "CVE_RECORD",
    "dataVersion": "5.2",
    "cveMetadata": {
        "cveId": "CVE-2026-48594",
        "assignerOrgId": "6b3ad84c-e1a6-4bf7-a703-f496b71e49db",
        "state": "PUBLISHED",
        "assignerShortName": "EEF",
        "dateReserved": "2026-05-22T09:36:56.834Z",
        "datePublished": "2026-06-02T19:08:49.596Z",
        "dateUpdated": "2026-09-24T20:50:12.704Z"
    },
    "containers": {
        "cna": {
            "affected": [
                {
                    "collectionURL": "https://repo.hex.pm",
                    "cpes": [
                        "cpe:2.3:a:elixir-tesla:tesla:*:*:*:*:*:*:*:*"
                    ],
                    "defaultStatus": "unaffected",
                    "modules": [
                        "'Elixir.Tesla.Middleware.Compression'",
                        "'Elixir.Tesla.Middleware.DecompressResponse'"
                    ],
                    "packageName": "tesla",
                    "packageURL": "pkg:hex/tesla",
                    "product": "tesla",
                    "programFiles": [
                        "lib/tesla/middleware/compression.ex"
                    ],
                    "programRoutines": [
                        {
                            "name": "'Elixir.Tesla.Middleware.DecompressResponse':call/3"
                        },
                        {
                            "name": "'Elixir.Tesla.Middleware.Compression':call/3"
                        }
                    ],
                    "repo": "https://github.com/elixir-tesla/tesla",
                    "vendor": "elixir-tesla",
                    "versions": [
                        {
                            "lessThan": "1.18.3",
                            "status": "affected",
                            "version": "0.6.0",
                            "versionType": "semver"
                        }
                    ]
                },
                {
                    "collectionURL": "https://github.com",
                    "cpes": [
                        "cpe:2.3:a:elixir-tesla:tesla:*:*:*:*:*:*:*:*"
                    ],
                    "defaultStatus": "unaffected",
                    "modules": [
                        "'Elixir.Tesla.Middleware.Compression'",
                        "'Elixir.Tesla.Middleware.DecompressResponse'"
                    ],
                    "packageName": "elixir-tesla/tesla",
                    "packageURL": "pkg:github/elixir-tesla/tesla",
                    "product": "tesla",
                    "programFiles": [
                        "lib/tesla/middleware/compression.ex"
                    ],
                    "programRoutines": [
                        {
                            "name": "'Elixir.Tesla.Middleware.DecompressResponse':call/3"
                        },
                        {
                            "name": "'Elixir.Tesla.Middleware.Compression':call/3"
                        }
                    ],
                    "repo": "https://github.com/elixir-tesla/tesla",
                    "vendor": "elixir-tesla",
                    "versions": [
                        {
                            "lessThan": "340f75b5d191dc747ef7ac6365bd002d1cd55a9d",
                            "status": "affected",
                            "version": "5bd90bb5cf0d15e375edc2a66fa322292940fce2",
                            "versionType": "git"
                        }
                    ]
                }
            ],
            "configurations": [
                {
                    "lang": "en",
                    "supportingMedia": [
                        {
                            "base64": false,
                            "type": "text/html",
                            "value": "<p>The application must include <code>Tesla.Middleware.DecompressResponse</code> or <code>Tesla.Middleware.Compression</code> in its Tesla middleware pipeline.</p>"
                        },
                        {
                            "base64": false,
                            "type": "text/markdown",
                            "value": "The application must include `Tesla.Middleware.DecompressResponse` or `Tesla.Middleware.Compression` in its Tesla middleware pipeline."
                        }
                    ],
                    "value": "The application must include Tesla.Middleware.DecompressResponse or Tesla.Middleware.Compression in its Tesla middleware pipeline."
                }
            ],
            "cpeApplicability": [
                {
                    "nodes": [
                        {
                            "cpeMatch": [
                                {
                                    "criteria": "cpe:2.3:a:elixir-tesla:tesla:*:*:*:*:*:*:*:*",
                                    "versionEndExcluding": "1.18.3",
                                    "versionStartIncluding": "0.6.0",
                                    "vulnerable": true
                                }
                            ],
                            "negate": false,
                            "operator": "OR"
                        }
                    ],
                    "operator": "AND"
                }
            ],
            "credits": [
                {
                    "lang": "en",
                    "type": "finder",
                    "value": "Peter Ullrich"
                },
                {
                    "lang": "en",
                    "type": "remediation developer",
                    "value": "Yordis Prieto"
                },
                {
                    "lang": "en",
                    "type": "analyst",
                    "value": "Jonatan Männchen / EEF"
                }
            ],
            "datePublic": "2026-06-02T19:08:49.000Z",
            "descriptions": [
                {
                    "lang": "en",
                    "supportingMedia": [
                        {
                            "base64": false,
                            "type": "text/html",
                            "value": "<p>Improper Handling of Highly Compressed Data (Data Amplification) vulnerability in elixir-tesla tesla allows a denial of service via decompression bomb in HTTP response bodies.</p>\n<p>When <code>Tesla.Middleware.DecompressResponse</code> or <code>Tesla.Middleware.Compression</code> is included in a Tesla middleware pipeline, HTTP response bodies are decompressed eagerly with no size limit. The <code>decompress_body/2</code> function in <code>lib/tesla/middleware/compression.ex</code> passes the entire response body to <code>:zlib.gunzip/1</code> or <code>:zlib.unzip/1</code> without any cap on the output size. Additionally, <code>compression_algorithms/1</code> splits the <code>content-encoding</code> header on commas and <code>decompress_body/2</code> recurses once per token, applying a decompression pass on each iteration. A server advertising <code>content-encoding: gzip, gzip, gzip, gzip</code> causes four recursive decompression passes, yielding exponential amplification: each gzip layer can expand its input roughly 1000x, so a payload of a few hundred bytes on the wire inflates to gigabytes of BEAM heap, exhausting memory and crashing or freezing the calling process.</p>\n<p>This issue affects tesla: from 0.6.0 before 1.18.3.</p>"
                        },
                        {
                            "base64": false,
                            "type": "text/markdown",
                            "value": "Improper Handling of Highly Compressed Data (Data Amplification) vulnerability in elixir-tesla tesla allows a denial of service via decompression bomb in HTTP response bodies.\n\nWhen `Tesla.Middleware.DecompressResponse` or `Tesla.Middleware.Compression` is included in a Tesla middleware pipeline, HTTP response bodies are decompressed eagerly with no size limit. The `decompress_body/2` function in `lib/tesla/middleware/compression.ex` passes the entire response body to `:zlib.gunzip/1` or `:zlib.unzip/1` without any cap on the output size. Additionally, `compression_algorithms/1` splits the `content-encoding` header on commas and `decompress_body/2` recurses once per token, applying a decompression pass on each iteration. A server advertising `content-encoding: gzip, gzip, gzip, gzip` causes four recursive decompression passes, yielding exponential amplification: each gzip layer can expand its input roughly 1000x, so a payload of a few hundred bytes on the wire inflates to gigabytes of BEAM heap, exhausting memory and crashing or freezing the calling process.\n\nThis issue affects tesla: from 0.6.0 before 1.18.3."
                        }
                    ],
                    "value": "Improper Handling of Highly Compressed Data (Data Amplification) vulnerability in elixir-tesla tesla allows a denial of service via decompression bomb in HTTP response bodies.\n\nWhen Tesla.Middleware.DecompressResponse or Tesla.Middleware.Compression is included in a Tesla middleware pipeline, HTTP response bodies are decompressed eagerly with no size limit. The decompress_body/2 function in lib/tesla/middleware/compression.ex passes the entire response body to :zlib.gunzip/1 or :zlib.unzip/1 without any cap on the output size. Additionally, compression_algorithms/1 splits the content-encoding header on commas and decompress_body/2 recurses once per token, applying a decompression pass on each iteration. A server advertising content-encoding: gzip, gzip, gzip, gzip causes four recursive decompression passes, yielding exponential amplification: each gzip layer can expand its input roughly 1000x, so a payload of a few hundred bytes on the wire inflates to gigabytes of BEAM heap, exhausting memory and crashing or freezing the calling process.\n\nThis issue affects tesla: from 0.6.0 before 1.18.3."
                }
            ],
            "impacts": [
                {
                    "capecId": "CAPEC-130",
                    "descriptions": [
                        {
                            "lang": "en",
                            "value": "CAPEC-130 Excessive Allocation"
                        }
                    ]
                }
            ],
            "metrics": [
                {
                    "cvssV4_0": {
                        "Automatable": "NOT_DEFINED",
                        "Recovery": "NOT_DEFINED",
                        "Safety": "NOT_DEFINED",
                        "attackComplexity": "LOW",
                        "attackRequirements": "PRESENT",
                        "attackVector": "NETWORK",
                        "baseScore": 8.2,
                        "baseSeverity": "HIGH",
                        "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:N/VI:N/VA:H/SC:N/SI:N/SA:N",
                        "version": "4.0",
                        "vulnAvailabilityImpact": "HIGH",
                        "vulnConfidentialityImpact": "NONE",
                        "vulnIntegrityImpact": "NONE",
                        "vulnerabilityResponseEffort": "NOT_DEFINED"
                    },
                    "format": "CVSS",
                    "scenarios": [
                        {
                            "lang": "en",
                            "value": "GENERAL"
                        }
                    ]
                }
            ],
            "problemTypes": [
                {
                    "descriptions": [
                        {
                            "cweId": "CWE-409",
                            "description": "CWE-409 Improper Handling of Highly Compressed Data (Data Amplification)",
                            "lang": "en",
                            "type": "CWE"
                        }
                    ]
                }
            ],
            "providerMetadata": {
                "orgId": "6b3ad84c-e1a6-4bf7-a703-f496b71e49db",
                "shortName": "EEF",
                "dateUpdated": "2026-09-24T20:50:12.704Z"
            },
            "references": [
                {
                    "tags": [
                        "vendor-advisory",
                        "related"
                    ],
                    "url": "https://github.com/elixir-tesla/tesla/security/advisories/GHSA-mc85-72gr-vm9f"
                },
                {
                    "name": "EEF CNA record for CVE-2026-48594",
                    "tags": [
                        "related"
                    ],
                    "url": "https://cna.erlef.org/cves/CVE-2026-48594.html"
                },
                {
                    "name": "OSV record EEF-CVE-2026-48594",
                    "tags": [
                        "related"
                    ],
                    "url": "https://osv.dev/vulnerability/EEF-CVE-2026-48594"
                },
                {
                    "name": "Introducing commit 5bd90bb in elixir-tesla/tesla",
                    "tags": [
                        "related"
                    ],
                    "url": "https://github.com/elixir-tesla/tesla/commit/5bd90bb5cf0d15e375edc2a66fa322292940fce2"
                },
                {
                    "name": "Fix commit 340f75b in elixir-tesla/tesla",
                    "tags": [
                        "patch"
                    ],
                    "url": "https://github.com/elixir-tesla/tesla/commit/340f75b5d191dc747ef7ac6365bd002d1cd55a9d"
                }
            ],
            "source": {
                "discovery": "EXTERNAL"
            },
            "title": "Decompression bomb in Tesla.Middleware.DecompressResponse and Tesla.Middleware.Compression"
        },
        "adp": [
            {
                "references": [
                    {
                        "url": "https://github.com/elixir-tesla/tesla/security/advisories/GHSA-mc85-72gr-vm9f",
                        "tags": [
                            "exploit"
                        ]
                    }
                ],
                "metrics": [
                    {
                        "other": {
                            "type": "ssvc",
                            "content": {
                                "timestamp": "2026-06-03T14:39:48.594599Z",
                                "id": "CVE-2026-48594",
                                "options": [
                                    {
                                        "Exploitation": "none"
                                    },
                                    {
                                        "Automatable": "no"
                                    },
                                    {
                                        "Technical Impact": "partial"
                                    }
                                ],
                                "role": "CISA Coordinator",
                                "version": "2.0.3"
                            }
                        }
                    }
                ],
                "title": "CISA ADP Vulnrichment",
                "providerMetadata": {
                    "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
                    "shortName": "CISA-ADP",
                    "dateUpdated": "2026-06-03T14:39:54.578Z"
                }
            }
        ]
    }
}