{"answers":{"affected":"3 open source packages ship an affected version, including grpc.","exploited":"It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-48854 exists.","fix":"Upgrade grpc to 1.0.0 or later.","what":"CVE-2026-48854 is a high-severity denial of service vulnerability in elixir-grpc grpc, published on 15 Jun 2026. An attacker can exploit it over the internet without logging in, with no action from the victim."},"fix_prompt":"Check this codebase for CVE-2026-48854 and fix it if it is affected.\n\nWhat it is: CVE-2026-48854 is a high-severity denial of service vulnerability in elixir-grpc grpc, published on 15 Jun 2026. An attacker can exploit it over the internet without logging in, with no action from the victim.\nExploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-48854 exists.\n\nAffected packages and fixed versions:\n- grpc (Hex): affected from 0.3.0-alpha.2; fixed in 1.0.0\n- grpc (Hex): affected from 0.3.1; fixed in 1.0.0\n- grpc (Hex): affected from 0.3.1; fixed in 1.0.0\n\nTask:\n1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.\n2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.\n3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.\n4. Run the tests and summarise what changed and why.\n5. If nothing in the project is affected, say so and change nothing.\n\nReference: https://insights.sbomify.com/CVE-2026-48854/ (Markdown: https://insights.sbomify.com/CVE-2026-48854/index.md)","id":"CVE-2026-48854","markdown":"https://insights.sbomify.com/CVE-2026-48854/index.md","name":"CVE-2026-48854","record":{"aliases":["EEF-CVE-2026-48854","GHSA-q8gf-9rvj-gmgj"],"analysis":{"component_type":"library","fix_type":"upgrade","impacts":["denial_of_service"],"network_reachable":"yes","non_default_config":false,"product_category":"Elixir gRPC library","requires_auth":"none","summary":"Unauthenticated attackers can crash the server by streaming large or slow request bodies, exhausting memory in the Elixir gRPC library.","user_interaction":"not_required","vuln_class":"denial_of_service"},"analysis_generated_by":"qwen3.8-flash-next","assigner":"EEF","cpe":[],"cvss":{"score":8.7,"severity":"high","source":"cna","vector":"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"},"cwes":[{"id":"CWE-770","name":"Allocation of Resources Without Limits or Throttling"}],"description":"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 0.3.0-alpha.2 before 1.0.0.","ecosystems":["Hex"],"exploits":{"exploitdb":0,"first_seen":null,"github_poc":0,"max_poc_stars":null,"metasploit":0,"nuclei":0,"refs":[],"tier":"weaponised"},"has_fix":true,"headline":"Unbounded request body accumulation causes memory exhaustion in elixir-grpc/grpc","id":"CVE-2026-48854","indexable":true,"kev":null,"kind":"cve","links":{"ecosystem":"Hex","product":null,"products":[],"type":"denial_of_service","year":"2026"},"n_packages":3,"n_references":5,"next":{"headline":"SFTP READLINK Leaks Absolute Backend Filesystem Path When Root Is Configured","id":"CVE-2026-48855"},"packages":[{"ecosystem":"Hex","fixed":["1.0.0"],"introduced":["0.3.0-alpha.2"],"last_affected":[],"package":"grpc","purl":"pkg:hex/grpc","source":"EEF-CVE-2026-48854"},{"ecosystem":"Hex","fixed":["1.0.0"],"introduced":["0.3.1"],"last_affected":[],"package":"grpc","purl":null,"source":"GHSA-q8gf-9rvj-gmgj"},{"ecosystem":"Hex","fixed":["1.0.0"],"introduced":["0.3.1"],"last_affected":[],"package":"grpc","purl":"pkg:hex/grpc","source":"GHSA-q8gf-9rvj-gmgj"}],"prev":{"headline":"Remote code execution and denial of service via unsafe Erlang term deserialization in elixir-grpc/grpc","id":"CVE-2026-48853"},"products":["grpc"],"published":"2026-06-15","related":[],"sources":[{"class":"attribution","licence":"CVE Terms of Use (MITRE)","name":"CVE List","prefix":"CVE"},{"class":"attribution","licence":"CC BY 4.0","name":"Erlang Ecosystem Foundation","prefix":"EEF"},{"class":"attribution","licence":"CC BY 4.0","name":"GitHub Advisory Database","prefix":"GHSA"},{"class":"attribution","licence":"CWE Terms of Use","name":"CWE (MITRE)"},{"class":"attribution","licence":"FIRST CVSS licence","name":"CVSS (FIRST)"}],"ssvc":{"automatable":"yes","exploitation":"poc","technical_impact":"partial"},"state":"PUBLISHED","updated":"2026-09-24","vendors":["elixir-grpc"]},"summary":"Unauthenticated attackers can crash the server by streaming large or slow request bodies, exhausting memory in the Elixir gRPC library.","url":"https://insights.sbomify.com/CVE-2026-48854/"}