{"items":[{"id":"NVI-00018567","kind":"vulnerability","title":"Bird-lg-go has a Fatal Out-of-Memory (OOM) Denial of Service via Unbounded JSON Decoding","revision":1,"unknowns":["Customer inventory, deployment, reachability and exploitation have not been inspected."],"lifecycle":"active","identifiers":["GHSA-39qr-rc93-vhqm","CVE-2026-45047"],"plain_summary":"GitHub lists this reviewed advisory for github.com/xddxdd/bird-lg-go. 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-3c7f119efe5cfef3c5b2055fac6e5a79"],"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":"CVSS","as_of":"2026-06-08T23:49:48.000Z","value":"7.5 high","meaning":"GitHub source severity; exploitability and local consequence require separate evidence.","source_id":"sr-3c7f119efe5cfef3c5b2055fac6e5a79"}],"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-3c7f119efe5cfef3c5b2055fac6e5a79","url":"https://github.com/advisories/GHSA-39qr-rc93-vhqm","basis":"vendor_advisory","notes":"GitHub Advisory Database; CC-BY-4.0. Each advisory links its original attribution. Null normalizes fields.","title":"GHSA-39qr-rc93-vhqm","publisher":"GitHub Advisory Database","observed_at":"2026-11-07T00:50:36.189Z"}],"affected_context":[{"certainty":"source_listed","source_ids":["sr-3c7f119efe5cfef3c5b2055fac6e5a79"],"technology":"github.com/xddxdd/bird-lg-go","known_exclusions":[],"conditions_summary":"### Summary\nThe `apiHandler` (and similarly `webHandlerTelegramBot`) processes user-provided JSON payloads by directly using `json.NewDecoder(r.Body).Decode(&request)` without restricting the maximum read size. An unauthenticated remote attacker can stream an extremely large, endless JSON payload (e.g., several Gigabytes of padding) over a single TCP connection. Because Go's JSON decoder attempts to allocate memory for the entire parsed structure, this rapidly exhausts the host's physical RAM or container limits, leading to an unrecoverable `fatal error: runtime: out of memory`. \n\nThis causes the Linux OOM Killer to instantly terminate the entire `bird-lg-go` daemon, resulting in a severe Remote Denial of Service (RDoS).\n\n### Details\nIn `api.go`:\n```go\nfunc apiHandler(w http.ResponseWriter, r *http.Request) {\n    var request apiRequest\n    // VULNERABILITY: No http.MaxBytesReader protection before JSON decode\n    err := json.NewDecoder(r.Body).Decode(&request) \n    // ...","public_affected_ranges":["< 0.0.0-20260507060110-0ff87024cb9e"]}],"null_published_at":"2026-11-07T07:07:39.856Z","source_updated_at":"2026-06-08T23:49:48.000Z","source_disclosed_at":"2026-05-11T16:17:48.000Z","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":"2026-11-07T00:50:36.189Z"}],"next_cursor":null,"snapshot_revision":"42594"}