{"containers":{"cna":{"affected":[{"collectionURL":"https://repo.hex.pm","cpes":["cpe:2.3:a:elixir-grpc:grpc:*:*:*:*:*:*:*:*"],"defaultStatus":"unaffected","modules":["'Elixir.GRPC.Server.Adapters.Cowboy.Handler'"],"packageName":"grpc","packageURL":"pkg:hex/grpc","product":"grpc","programFiles":["lib/grpc/server/adapters/cowboy/handler.ex"],"programRoutines":[{"name":"'Elixir.GRPC.Server.Adapters.Cowboy.Handler':read_full_body/3"}],"repo":"https://github.com/elixir-grpc/grpc","vendor":"elixir-grpc","versions":[{"lessThan":"1.0.0","status":"affected","version":"0.3.1","versionType":"semver"}]},{"collectionURL":"https://github.com","cpes":["cpe:2.3:a:elixir-grpc:grpc:*:*:*:*:*:*:*:*"],"defaultStatus":"unaffected","modules":["'Elixir.GRPC.Server.Adapters.Cowboy.Handler'"],"packageName":"elixir-grpc/grpc","packageURL":"pkg:github/elixir-grpc/grpc","product":"grpc","programFiles":["lib/grpc/server/adapters/cowboy/handler.ex"],"programRoutines":[{"name":"'Elixir.GRPC.Server.Adapters.Cowboy.Handler':read_full_body/3"}],"repo":"https://github.com/elixir-grpc/grpc","vendor":"elixir-grpc","versions":[{"lessThan":"49e18c3ec6bb9afe2f712caad3dbab5c56a68a00","status":"affected","version":"d1abe70a6cad6dac4a3f8235d883d7c896989560","versionType":"git"}]}],"cpeApplicability":[{"nodes":[{"cpeMatch":[{"criteria":"cpe:2.3:a:elixir-grpc:grpc:*:*:*:*:*:*:*:*","versionEndExcluding":"1.0.0","versionStartIncluding":"0.3.1","vulnerable":true}],"operator":"OR"}]}],"credits":[{"lang":"en","type":"finder","value":"Peter Ullrich"},{"lang":"en","type":"remediation developer","value":"Paulo Valente"},{"lang":"en","type":"analyst","value":"Jonatan Männchen"}],"descriptions":[{"lang":"en","supportingMedia":[{"base64":false,"type":"text/html","value":"<p>Allocation of Resources Without Limits or Throttling vulnerability in elixir-grpc grpc allows unauthenticated attackers to exhaust the BEAM's memory and crash the server by streaming a large or slow-trickle unary request body.</p><p><tt>'Elixir.GRPC.Server.Adapters.Cowboy.Handler':read_full_body/3</tt> (<tt>lib/grpc/server/adapters/cowboy/handler.ex</tt>) accumulates every received chunk into a single growing binary with no size cap. Additionally, when the client omits the <tt>grpc-timeout</tt> header, the per-chunk read timeout resolves to <tt>:infinity</tt>, allowing a slow-trickle client to keep the connection alive indefinitely while memory grows. A single connection is sufficient to exhaust server memory and crash the node.</p><p>This issue affects grpc from 0.3.1 before 1.0.0.</p>"}],"value":"Allocation of Resources Without Limits or Throttling vulnerability in elixir-grpc grpc allows unauthenticated attackers to exhaust the BEAM's memory and crash the server by streaming a large or slow-trickle unary request body.\n\n'Elixir.GRPC.Server.Adapters.Cowboy.Handler':read_full_body/3 (lib/grpc/server/adapters/cowboy/handler.ex) accumulates every received chunk into a single growing binary with no size cap. Additionally, when the client omits the grpc-timeout header, the per-chunk read timeout resolves to :infinity, allowing a slow-trickle client to keep the connection alive indefinitely while memory grows. A single connection is sufficient to exhaust server memory and crash the node.\n\nThis issue affects grpc from 0.3.1 before 1.0.0."}],"impacts":[{"capecId":"CAPEC-130","descriptions":[{"lang":"en","value":"CAPEC-130 Excessive Allocation"}]},{"capecId":"CAPEC-231","descriptions":[{"lang":"en","value":"CAPEC-231 Oversized Serialized Data Payloads"}]}],"metrics":[{"cvssV4_0":{"attackComplexity":"LOW","attackRequirements":"NONE","attackVector":"NETWORK","baseScore":8.7,"baseSeverity":"HIGH","privilegesRequired":"NONE","subAvailabilityImpact":"NONE","subConfidentialityImpact":"NONE","subIntegrityImpact":"NONE","userInteraction":"NONE","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","version":"4.0","vulnAvailabilityImpact":"HIGH","vulnConfidentialityImpact":"NONE","vulnIntegrityImpact":"NONE"},"format":"CVSS","scenarios":[{"lang":"en","value":"GENERAL"}]}],"problemTypes":[{"descriptions":[{"cweId":"CWE-770","description":"CWE-770 Allocation of Resources Without Limits or Throttling","lang":"en","type":"CWE"}]}],"providerMetadata":{"dateUpdated":"2026-06-15T21:55:23.629Z","orgId":"6b3ad84c-e1a6-4bf7-a703-f496b71e49db","shortName":"EEF"},"references":[{"tags":["vendor-advisory","related"],"url":"https://github.com/elixir-grpc/grpc/security/advisories/GHSA-q8gf-9rvj-gmgj"},{"tags":["related"],"url":"https://cna.erlef.org/cves/CVE-2026-48854.html"},{"tags":["related"],"url":"https://osv.dev/vulnerability/EEF-CVE-2026-48854"},{"tags":["patch"],"url":"https://github.com/elixir-grpc/grpc/commit/49e18c3ec6bb9afe2f712caad3dbab5c56a68a00"}],"source":{"discovery":"EXTERNAL"},"title":"Unbounded request body accumulation causes memory exhaustion in elixir-grpc/grpc","x_generator":{"engine":"cvelib 1.8.0"}}},"cveMetadata":{"assignerOrgId":"6b3ad84c-e1a6-4bf7-a703-f496b71e49db","assignerShortName":"EEF","cveId":"CVE-2026-48854","datePublished":"2026-06-15T21:55:23.629Z","dateReserved":"2026-05-25T20:44:10.697Z","dateUpdated":"2026-06-15T21:55:23.629Z","state":"PUBLISHED"},"dataType":"CVE_RECORD","dataVersion":"5.2"}