{"items":[{"id":"NVI-00013928","kind":"vulnerability","title":"gRPC Erlang package has unbounded request body accumulation in `read_full_body/3`","revision":2,"unknowns":["Customer inventory, deployment, reachability and exploitation have not been inspected."],"lifecycle":"active","identifiers":["GHSA-q8gf-9rvj-gmgj","CVE-2026-48854"],"plain_summary":"GitHub lists this reviewed advisory for grpc. Published version ranges and source prerequisites are shown below; this is not an inspection of a visitor’s application.","review_status":"source_listed","control_topics":[],"public_actions":[{"summary":"Identify the exact component and deployed version, examine the linked publisher’s conditions, and retain evidence of any mitigation.","source_ids":["sr-06764af50f6475348dceaaecbd5e4fb5"],"action_type":"investigate","limitations":"Confirm current vendor support, compatibility and deployment evidence. This report has not tested a fix in your system.","current_supported_target":null}],"schema_version":"1.1.0","source_metrics":[{"kind":"EPSS","as_of":"2026-11-02T12:00:30.000Z","value":"0.451%","meaning":"FIRST EPSS model v2026.06.15; exploitation probability over 30 days, percentile 0.39152. Missing scores are unknown.","source_id":"sr-06764af50f6475348dceaaecbd5e4fb5"}],"why_it_matters":"Published affected context helps an owner decide what evidence to gather. This report has not examined your application.","related_sources":[{"id":"sr-1ef106eea8275153c3b4583446fb5224","url":"https://github.com/advisories/GHSA-q8gf-9rvj-gmgj","basis":"vendor_advisory","notes":"GitHub Advisory Database; CC-BY-4.0. Each advisory links its original attribution. Null normalizes fields.","title":"GHSA-q8gf-9rvj-gmgj","publisher":"GitHub Advisory Database","observed_at":"2026-11-02T09:56:37.775Z"},{"id":"sr-06764af50f6475348dceaaecbd5e4fb5","url":"https://www.first.org/epss/data.html","basis":"official_catalog","notes":"FIRST EPSS; probability of exploitation in the next 30 days, not local compromise. Dataset date/model retained; FIRST services terms apply.","title":"CVE-2026-48854","publisher":"FIRST EPSS","observed_at":"2026-11-02T20:15:58.855Z"}],"affected_context":[{"certainty":"source_listed","source_ids":["sr-1ef106eea8275153c3b4583446fb5224"],"technology":"grpc","known_exclusions":[],"conditions_summary":"### Summary\n\n`'Elixir.GRPC.Server.Adapters.Cowboy.Handler':read_full_body/3` accumulates every received chunk into a single growing binary with no size cap. When the client omits the `grpc-timeout` header, the read timeout resolves to `:infinity`, allowing a slow-trickle attacker to hold the connection open indefinitely while memory grows. A single unauthenticated connection is sufficient to exhaust BEAM memory and crash the node.\n\n### Details\n\nThe read loop in `lib/grpc/server/adapters/cowboy/handler.ex` calls `:cowboy_req.read_body/2` in a recursive loop, concatenating each chunk: `body  data`. There is no running-total check and no configurable maximum body size. As the loop drains the receive buffer, cowboy issues fresh HTTP/2 `WINDOW_UPDATE` frames, so the client can keep pushing data indefinitely.\n\nThe `grpc-timeout` header is attacker-supplied and optional. When absent, `timeout_left_opt(nil)` returns `:infinity`, so the per-chunk read also has no deadline. The two missing controls compound: a fast client can blast multi-gigabyte payloads directly into memory; a slow client can trickle data forever.\n\n### PoC\n\n1. Start any `grpc` server exposing a unary RPC (no special conf","public_affected_ranges":[">= 0.3.1, < 1.0.0"]}],"null_published_at":"2026-11-03T17:49:15.011Z","source_updated_at":"2026-08-25T18:12:07.000Z","source_disclosed_at":"2026-08-25T18:12:05.000Z","is_synthetic_fixture":false,"null_last_reviewed_at":null,"public_change_summary":"Dated EPSS estimate updated; this is not a new disclosure or proof of exploitation.","null_first_observed_at":"2026-11-02T09:56:37.775Z"},{"id":"NVI-00013928","kind":"vulnerability","title":"gRPC Erlang package has unbounded request body accumulation in `read_full_body/3`","revision":1,"unknowns":["Customer inventory, deployment, reachability and exploitation have not been inspected."],"lifecycle":"active","identifiers":["GHSA-q8gf-9rvj-gmgj","CVE-2026-48854"],"plain_summary":"GitHub lists this reviewed advisory for grpc. Published version ranges and source prerequisites are shown below; this is not an inspection of a visitor’s application.","review_status":"source_listed","control_topics":[],"public_actions":[{"summary":"Identify the exact component and deployed version, examine the linked publisher’s conditions, and retain evidence of any mitigation.","source_ids":["sr-1ef106eea8275153c3b4583446fb5224"],"action_type":"investigate","limitations":"Confirm current vendor support, compatibility and deployment evidence. This report has not tested a fix in your system.","current_supported_target":null}],"schema_version":"1.1.0","source_metrics":[],"why_it_matters":"Published affected context helps an owner decide what evidence to gather. This report has not examined your application.","related_sources":[{"id":"sr-1ef106eea8275153c3b4583446fb5224","url":"https://github.com/advisories/GHSA-q8gf-9rvj-gmgj","basis":"vendor_advisory","notes":"GitHub Advisory Database; CC-BY-4.0. Each advisory links its original attribution. Null normalizes fields.","title":"GHSA-q8gf-9rvj-gmgj","publisher":"GitHub Advisory Database","observed_at":"2026-11-02T09:56:37.775Z"}],"affected_context":[{"certainty":"source_listed","source_ids":["sr-1ef106eea8275153c3b4583446fb5224"],"technology":"grpc","known_exclusions":[],"conditions_summary":"### Summary\n\n`'Elixir.GRPC.Server.Adapters.Cowboy.Handler':read_full_body/3` accumulates every received chunk into a single growing binary with no size cap. When the client omits the `grpc-timeout` header, the read timeout resolves to `:infinity`, allowing a slow-trickle attacker to hold the connection open indefinitely while memory grows. A single unauthenticated connection is sufficient to exhaust BEAM memory and crash the node.\n\n### Details\n\nThe read loop in `lib/grpc/server/adapters/cowboy/handler.ex` calls `:cowboy_req.read_body/2` in a recursive loop, concatenating each chunk: `body  data`. There is no running-total check and no configurable maximum body size. As the loop drains the receive buffer, cowboy issues fresh HTTP/2 `WINDOW_UPDATE` frames, so the client can keep pushing data indefinitely.\n\nThe `grpc-timeout` header is attacker-supplied and optional. When absent, `timeout_left_opt(nil)` returns `:infinity`, so the per-chunk read also has no deadline. The two missing controls compound: a fast client can blast multi-gigabyte payloads directly into memory; a slow client can trickle data forever.\n\n### PoC\n\n1. Start any `grpc` server exposing a unary RPC (no special conf","public_affected_ranges":[">= 0.3.1, < 1.0.0"]}],"null_published_at":"2026-11-02T10:00:37.175Z","source_updated_at":"2026-08-25T18:12:07.000Z","source_disclosed_at":"2026-08-25T18:12:05.000Z","is_synthetic_fixture":false,"null_last_reviewed_at":null,"public_change_summary":"First indexed by Null; source disclosure date is shown separately.","null_first_observed_at":"2026-11-02T09:56:37.775Z"}],"next_cursor":null,"snapshot_revision":"42594"}