267 lines
13 KiB
JSON
267 lines
13 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-2026-53430",
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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": "2026-06-09T11:01:47.529Z",
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"datePublished": "2026-06-15T21:55:33.707Z",
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"dateUpdated": "2026-06-17T04:46:39.180Z"
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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://hex.pm",
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"cpes": [
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"cpe:2.3:a:elixir-grpc:grpc:*:*:*:*:*:*:*:*"
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],
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"defaultStatus": "unaffected",
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"modules": [
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"'Elixir.GRPC.Compressor.Gzip'",
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"'Elixir.GRPC.Message'"
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],
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"packageName": "grpc",
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"packageURL": "pkg:hex/grpc",
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"product": "grpc",
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"programFiles": [
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"lib/grpc/compressor/gzip.ex",
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"lib/grpc/message.ex"
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],
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"programRoutines": [
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{
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"name": "'Elixir.GRPC.Compressor.Gzip':decompress/1"
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},
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{
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"name": "'Elixir.GRPC.Message':from_data/2"
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}
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],
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"repo": "https://github.com/elixir-grpc/grpc",
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"vendor": "elixir-grpc",
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"versions": [
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{
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"lessThan": "1.0.0",
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"status": "affected",
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"version": "0.4.0",
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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-grpc:grpc:*:*:*:*:*:*:*:*"
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],
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"defaultStatus": "unaffected",
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"modules": [
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"'Elixir.GRPC.Compressor.Gzip'",
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"'Elixir.GRPC.Message'"
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],
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"packageName": "elixir-grpc/grpc",
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"packageURL": "pkg:github/elixir-grpc/grpc",
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"product": "grpc",
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"programFiles": [
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"lib/grpc/compressor/gzip.ex",
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"lib/grpc/message.ex"
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],
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"programRoutines": [
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{
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"name": "'Elixir.GRPC.Compressor.Gzip':decompress/1"
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},
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{
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"name": "'Elixir.GRPC.Message':from_data/2"
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}
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],
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"repo": "https://github.com/elixir-grpc/grpc",
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"vendor": "elixir-grpc",
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"versions": [
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{
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"lessThan": "1afbab9d57d2a3e16ca9c62ffa4923338ea96cfc",
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"status": "affected",
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"version": "beae6800fc8baf126f3fe7107d86a50e105275ba",
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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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"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-grpc:grpc:*:*:*:*:*:*:*:*",
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"versionEndExcluding": "1.0.0",
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"versionStartIncluding": "0.4.0",
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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": "AND"
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}
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],
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"operator": "OR"
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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": "Paulo Valente"
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}
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],
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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-grpc grpc (<tt>GRPC.Compressor.Gzip</tt>, <tt>GRPC.Message</tt> modules) allows a denial of service via a gzip decompression bomb.</p><p>This vulnerability is associated with program files <tt>lib/grpc/compressor/gzip.ex</tt>, <tt>lib/grpc/message.ex</tt> and program routines <tt>'Elixir.GRPC.Compressor.Gzip':decompress/1</tt>, <tt>'Elixir.GRPC.Message':from_data/2</tt>.</p><p><tt>'Elixir.GRPC.Compressor.Gzip':decompress/1</tt> calls <tt>:zlib.gunzip/1</tt> directly on attacker-controlled bytes with no decompressed-size limit, ratio check, or incremental decoding. Because this module is the registered gzip <tt>GRPC.Compressor</tt> implementation, it is invoked automatically whenever an incoming gRPC frame carries the <tt>grpc-encoding: gzip</tt> header. <tt>:zlib.gunzip/1</tt> allocates the entire decompressed result as a single binary, so a small highly compressible payload (for example a few kilobytes of zeros, which gzip compresses at roughly 1000:1) expands to multiple gigabytes inside a single call. The <tt>max_receive_message_length</tt> limit is enforced only against the already-decompressed message, so it provides no protection. An unauthenticated remote peer can send a single crafted frame to exhaust the BEAM node's heap and trigger an out-of-memory kill.</p><p>This issue affects grpc: from 0.4.0 before 1.0.0.</p>"
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}
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],
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"value": "Improper Handling of Highly Compressed Data (Data Amplification) vulnerability in elixir-grpc grpc (GRPC.Compressor.Gzip, GRPC.Message modules) allows a denial of service via a gzip decompression bomb.\n\nThis vulnerability is associated with program files lib/grpc/compressor/gzip.ex, lib/grpc/message.ex and program routines 'Elixir.GRPC.Compressor.Gzip':decompress/1, 'Elixir.GRPC.Message':from_data/2.\n\n'Elixir.GRPC.Compressor.Gzip':decompress/1 calls :zlib.gunzip/1 directly on attacker-controlled bytes with no decompressed-size limit, ratio check, or incremental decoding. Because this module is the registered gzip GRPC.Compressor implementation, it is invoked automatically whenever an incoming gRPC frame carries the grpc-encoding: gzip header. :zlib.gunzip/1 allocates the entire decompressed result as a single binary, so a small highly compressible payload (for example a few kilobytes of zeros, which gzip compresses at roughly 1000:1) expands to multiple gigabytes inside a single call. The max_receive_message_length limit is enforced only against the already-decompressed message, so it provides no protection. An unauthenticated remote peer can send a single crafted frame to exhaust the BEAM node's heap and trigger an out-of-memory kill.\n\nThis issue affects grpc: from 0.4.0 before 1.0.0."
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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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"attackComplexity": "LOW",
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"attackRequirements": "NONE",
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"attackVector": "NETWORK",
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"baseScore": 8.7,
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"baseSeverity": "HIGH",
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"privilegesRequired": "NONE",
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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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"vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/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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},
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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": "2026-06-17T04:46:39.180Z"
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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-grpc/grpc/security/advisories/GHSA-6ccx-9c9f-327w"
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},
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{
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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-2026-53430.html"
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},
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{
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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-2026-53430"
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},
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{
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"tags": [
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"patch"
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],
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"url": "https://github.com/elixir-grpc/grpc/commit/1afbab9d57d2a3e16ca9c62ffa4923338ea96cfc"
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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": "grpc gzip decompression bomb in GRPC.Compressor.Gzip.decompress/1",
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"x_generator": {
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"engine": "cvelib 1.8.0"
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}
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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-grpc/grpc/security/advisories/GHSA-6ccx-9c9f-327w",
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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": "2026-06-16T14:42:39.467618Z",
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"id": "CVE-2026-53430",
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"options": [
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{
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"Exploitation": "poc"
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},
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{
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"Automatable": "yes"
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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": "2026-06-16T14:43:11.143Z"
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}
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}
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]
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}
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} |