CVE-2026-61547

{
  "etk_id": "ETK-2026-4393",
  "cve_id": "CVE-2026-61547",
  "display_id": "CVE-2026-61547",
  "ghsa_id": "GHSA-hfjv-vcp3-39wh",
  "euvd_id": "EUVD-2026-121281",
  "status": "published",
  "anchor_state": "anchored",
  "title": "Heap buffer overflow in rabbitmq-c frame serialization",
  "summary": "rabbitmq-c versions before 0.17.0 can write beyond an internal heap buffer while handling an oversized body frame through the low-level amqp_send_frame() API. An attacker may cause a crash or memory corruption if the application constructs such frames from attacker-controlled or inadequately validated input; broker connectivity is not required for the flaw to occur.",
  "mitigation": "Upgrade rabbitmq-c to version 0.17.0 or later. Until upgraded, do not pass untrusted body-frame lengths to amqp_send_frame(), and enforce bounds consistent with the connection's outbound frame capacity.",
  "vendor": "alanxz",
  "product": "rabbitmq-c",
  "affected": [
    {
      "affected_notes": [],
      "affected_ranges": [
        "<= 0.16.0"
      ],
      "ecosystem": null,
      "fixed_versions": [
        "0.17.0"
      ],
      "package_name": "rabbitmq-c",
      "purl": null
    }
  ],
  "cwes": [
    787
  ],
  "cvss_score": 9.8,
  "cvss_src": "cna_vendor",
  "cvss_vector": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
  "epss_score": null,
  "epss_percentile": null,
  "epss_asof": null,
  "automation": "contextual",
  "check": false,
  "check_confidence_basis": null,
  "exploit": false,
  "pipeline_minutes": 11.885141633333333,
  "t0_at": "2026-11-10T16:21:17.565000+00:00",
  "signals": {
    "public_poc": {
      "at": "2026-07-02T04:26:24+00:00",
      "days": -131.4964532986111,
      "is_lower_bound": false,
      "measured_at": "2026-11-10T16:21:17.565000+00:00",
      "url": "https://github.com/alanxz/rabbitmq-c/security/advisories/GHSA-hfjv-vcp3-39wh"
    },
    "trigger_signal": {
      "at": "2026-11-10T16:21:17.565000+00:00",
      "days": 0,
      "is_lower_bound": false,
      "measured_at": "2026-11-10T16:21:17.565000+00:00",
      "url": "https://github.com/alanxz/rabbitmq-c/security/advisories/GHSA-hfjv-vcp3-39wh"
    }
  }
}