{"items":[{"id":"NVI-00013869","kind":"vulnerability","title":"RabbitMQ amqp091-go: Denial of Service via Malicious Field Length in AMQP Client","revision":1,"unknowns":["Customer inventory, deployment, reachability and exploitation have not been inspected."],"lifecycle":"active","identifiers":["GHSA-4v58-74mf-rjx3","CVE-2026-77412"],"plain_summary":"GitHub lists this reviewed advisory for github.com/rabbitmq/amqp091-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-12a5c355df8bc3e4e3bcffb536b96496"],"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-12a5c355df8bc3e4e3bcffb536b96496","url":"https://github.com/advisories/GHSA-4v58-74mf-rjx3","basis":"vendor_advisory","notes":"GitHub Advisory Database; CC-BY-4.0. Each advisory links its original attribution. Null normalizes fields.","title":"GHSA-4v58-74mf-rjx3","publisher":"GitHub Advisory Database","observed_at":"2026-11-01T19:09:30.244Z"}],"affected_context":[{"certainty":"source_listed","source_ids":["sr-12a5c355df8bc3e4e3bcffb536b96496"],"technology":"github.com/rabbitmq/amqp091-go","known_exclusions":[],"conditions_summary":"**Summary**\nA vulnerability in the readField function allows a malicious or compromised AMQP server to trigger an unhandled runtime panic in the client application, leading to an immediate crash of the entire process.\n\n**Details**\nWhen parsing incoming AMQP frames, the `readField` function processes byte-array fields (type tag `'x'`) by reading a 32-bit big-endian integer to determine the length of the data payload.\n\n```go\n// read.go:253-263\ncase 'x':\n    var len int32\n    if err = binary.Read(r, binary.BigEndian, &len); err != nil {\n        return nil, err\n    }\n    value := make([]byte, len)  // PANICS if len < 0\n```\n\nIf a server transmits a length value of `0xFFFFFFFF`, it is interpreted by the client as a signed 32-bit integer with a value of `-1`. Passing a negative integer to Go's built-in make() function for slice allocation triggers an unrecoverable runtime panic (panic: len out of range).\n\nBecause the reader goroutine handles network I/O without an explicit recover() wrapper, this panic propagates up to the runtime root, abruptly terminating the host application.\n\n**Attack Vector / Exploitation Scenario**\nAn attacker capable of spoofing, compromising, or controlling an AMQ","public_affected_ranges":["< 1.13.0"]}],"null_published_at":"2026-11-02T10:00:37.164Z","source_updated_at":"2026-09-17T17:04:31.000Z","source_disclosed_at":"2026-09-17T17:04:29.000Z","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":"2026-11-01T19:09:30.244Z"}],"next_cursor":null,"snapshot_revision":"42594"}