307 lines
16 KiB
JSON
307 lines
16 KiB
JSON
{
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"dataType": "CVE_RECORD",
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"dataVersion": "5.2",
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"cveMetadata": {
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"cveId": "CVE-2026-48594",
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"assignerOrgId": "6b3ad84c-e1a6-4bf7-a703-f496b71e49db",
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"state": "PUBLISHED",
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"assignerShortName": "EEF",
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"dateReserved": "2026-05-22T09:36:56.834Z",
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"datePublished": "2026-06-02T19:08:49.596Z",
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"dateUpdated": "2026-09-24T20:50:12.704Z"
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},
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"containers": {
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"cna": {
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"affected": [
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{
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"collectionURL": "https://repo.hex.pm",
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"cpes": [
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"cpe:2.3:a:elixir-tesla:tesla:*:*:*:*:*:*:*:*"
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],
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"defaultStatus": "unaffected",
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"modules": [
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"'Elixir.Tesla.Middleware.Compression'",
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"'Elixir.Tesla.Middleware.DecompressResponse'"
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],
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"packageName": "tesla",
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"packageURL": "pkg:hex/tesla",
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"product": "tesla",
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"programFiles": [
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"lib/tesla/middleware/compression.ex"
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],
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"programRoutines": [
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{
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"name": "'Elixir.Tesla.Middleware.DecompressResponse':call/3"
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},
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{
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"name": "'Elixir.Tesla.Middleware.Compression':call/3"
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}
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],
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"repo": "https://github.com/elixir-tesla/tesla",
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"vendor": "elixir-tesla",
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"versions": [
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{
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"lessThan": "1.18.3",
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"status": "affected",
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"version": "0.6.0",
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"versionType": "semver"
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}
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]
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},
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{
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"collectionURL": "https://github.com",
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"cpes": [
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"cpe:2.3:a:elixir-tesla:tesla:*:*:*:*:*:*:*:*"
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],
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"defaultStatus": "unaffected",
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"modules": [
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"'Elixir.Tesla.Middleware.Compression'",
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"'Elixir.Tesla.Middleware.DecompressResponse'"
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],
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"packageName": "elixir-tesla/tesla",
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"packageURL": "pkg:github/elixir-tesla/tesla",
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"product": "tesla",
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"programFiles": [
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"lib/tesla/middleware/compression.ex"
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],
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"programRoutines": [
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{
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"name": "'Elixir.Tesla.Middleware.DecompressResponse':call/3"
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},
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{
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"name": "'Elixir.Tesla.Middleware.Compression':call/3"
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}
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],
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"repo": "https://github.com/elixir-tesla/tesla",
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"vendor": "elixir-tesla",
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"versions": [
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{
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"lessThan": "340f75b5d191dc747ef7ac6365bd002d1cd55a9d",
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"status": "affected",
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"version": "5bd90bb5cf0d15e375edc2a66fa322292940fce2",
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"versionType": "git"
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}
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]
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}
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],
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"configurations": [
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{
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"lang": "en",
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"supportingMedia": [
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{
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"base64": false,
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"type": "text/html",
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"value": "<p>The application must include <code>Tesla.Middleware.DecompressResponse</code> or <code>Tesla.Middleware.Compression</code> in its Tesla middleware pipeline.</p>"
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},
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{
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"base64": false,
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"type": "text/markdown",
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"value": "The application must include `Tesla.Middleware.DecompressResponse` or `Tesla.Middleware.Compression` in its Tesla middleware pipeline."
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}
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],
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"value": "The application must include Tesla.Middleware.DecompressResponse or Tesla.Middleware.Compression in its Tesla middleware pipeline."
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}
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],
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"cpeApplicability": [
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{
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"nodes": [
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{
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"cpeMatch": [
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{
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"criteria": "cpe:2.3:a:elixir-tesla:tesla:*:*:*:*:*:*:*:*",
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"versionEndExcluding": "1.18.3",
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"versionStartIncluding": "0.6.0",
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"vulnerable": true
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}
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],
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"negate": false,
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"operator": "OR"
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}
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],
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"operator": "AND"
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}
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],
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"credits": [
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{
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"lang": "en",
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"type": "finder",
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"value": "Peter Ullrich"
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},
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{
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"lang": "en",
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"type": "remediation developer",
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"value": "Yordis Prieto"
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},
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{
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"lang": "en",
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"type": "analyst",
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"value": "Jonatan Männchen / EEF"
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}
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],
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"datePublic": "2026-06-02T19:08:49.000Z",
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"descriptions": [
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{
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"lang": "en",
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"supportingMedia": [
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{
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"base64": false,
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"type": "text/html",
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"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>"
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},
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{
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"base64": false,
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"type": "text/markdown",
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"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."
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}
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],
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"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."
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}
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],
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"impacts": [
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{
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"capecId": "CAPEC-130",
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"descriptions": [
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{
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"lang": "en",
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"value": "CAPEC-130 Excessive Allocation"
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}
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]
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}
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],
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"metrics": [
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{
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"cvssV4_0": {
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"Automatable": "NOT_DEFINED",
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"Recovery": "NOT_DEFINED",
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"Safety": "NOT_DEFINED",
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"attackComplexity": "LOW",
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"attackRequirements": "PRESENT",
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"attackVector": "NETWORK",
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"baseScore": 8.2,
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"baseSeverity": "HIGH",
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"privilegesRequired": "NONE",
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"providerUrgency": "NOT_DEFINED",
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"subAvailabilityImpact": "NONE",
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"subConfidentialityImpact": "NONE",
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"subIntegrityImpact": "NONE",
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"userInteraction": "NONE",
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"valueDensity": "NOT_DEFINED",
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"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",
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"version": "4.0",
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"vulnAvailabilityImpact": "HIGH",
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"vulnConfidentialityImpact": "NONE",
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"vulnIntegrityImpact": "NONE",
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"vulnerabilityResponseEffort": "NOT_DEFINED"
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},
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"format": "CVSS",
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"scenarios": [
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{
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"lang": "en",
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"value": "GENERAL"
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}
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]
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}
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],
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"problemTypes": [
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{
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"descriptions": [
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{
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"cweId": "CWE-409",
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"description": "CWE-409 Improper Handling of Highly Compressed Data (Data Amplification)",
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"lang": "en",
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"type": "CWE"
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}
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]
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}
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],
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"providerMetadata": {
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"orgId": "6b3ad84c-e1a6-4bf7-a703-f496b71e49db",
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"shortName": "EEF",
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"dateUpdated": "2026-09-24T20:50:12.704Z"
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},
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"references": [
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{
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"tags": [
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"vendor-advisory",
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"related"
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],
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"url": "https://github.com/elixir-tesla/tesla/security/advisories/GHSA-mc85-72gr-vm9f"
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},
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{
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"name": "EEF CNA record for CVE-2026-48594",
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"tags": [
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"related"
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],
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"url": "https://cna.erlef.org/cves/CVE-2026-48594.html"
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},
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{
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"name": "OSV record EEF-CVE-2026-48594",
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"tags": [
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"related"
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],
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"url": "https://osv.dev/vulnerability/EEF-CVE-2026-48594"
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},
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{
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"name": "Introducing commit 5bd90bb in elixir-tesla/tesla",
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"tags": [
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"related"
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],
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"url": "https://github.com/elixir-tesla/tesla/commit/5bd90bb5cf0d15e375edc2a66fa322292940fce2"
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},
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{
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"name": "Fix commit 340f75b in elixir-tesla/tesla",
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"tags": [
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"patch"
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],
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"url": "https://github.com/elixir-tesla/tesla/commit/340f75b5d191dc747ef7ac6365bd002d1cd55a9d"
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}
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],
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"source": {
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"discovery": "EXTERNAL"
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},
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"title": "Decompression bomb in Tesla.Middleware.DecompressResponse and Tesla.Middleware.Compression"
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},
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"adp": [
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{
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"references": [
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{
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"url": "https://github.com/elixir-tesla/tesla/security/advisories/GHSA-mc85-72gr-vm9f",
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"tags": [
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"exploit"
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]
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}
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],
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"metrics": [
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{
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"other": {
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"type": "ssvc",
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"content": {
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"timestamp": "2026-06-03T14:39:48.594599Z",
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"id": "CVE-2026-48594",
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"options": [
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{
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"Exploitation": "none"
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},
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{
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"Automatable": "no"
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},
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{
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"Technical Impact": "partial"
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}
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],
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"role": "CISA Coordinator",
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"version": "2.0.3"
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}
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}
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}
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],
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"title": "CISA ADP Vulnrichment",
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"providerMetadata": {
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"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
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"shortName": "CISA-ADP",
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"dateUpdated": "2026-06-03T14:39:54.578Z"
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}
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}
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]
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}
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} |