CVE-2026-61633

Katalog CVE

CVSS 2.0 · Low EPSS 0,34%

Kerentanan Loop with Unreachable Exit Condition ('Infinite Loop'). Skor CVSS 3.1 2.0 (Low) menurut github.com.

Deskripsi (NVD)

NanoMQ is an MQTT broker. Prior to 0.24.14, the NanoMQ client function nni_mqtt_msg_decode_unsubscribe() in nng/src/supplemental/mqtt/mqtt_codec.c does not handle a failed read_uint16() while counting topics in a malformed UNSUBSCRIBE packet. A zero-length topic followed by trailing data can leave buf.curpos unchanged while topic_count continues to increase, allowing a malicious MQTT broker to hang a connecting MQTT 3.1.1 client, consume CPU and memory, and repeatedly deny service when automatic reconnection is enabled. The broker-side nmq_unsubinfo_decode path is not affected. This issue is fixed in version 0.24.14.

Rincian

Terbit di NVD

18 September 2026

Terakhir diubah

18 September 2026

Status NVD

Deferred

CVSS 3.1

2.0 (Low), sumber github.com
CVSS:3.1/AV:N/AC:H/PR:H/UI:R/S:U/C:N/I:N/A:L · uraikan di kalkulator

Jenis kelemahan (CWE)

CWE-835: Loop with Unreachable Exit Condition ('Infinite Loop')

EPSS (30 hari)

0,34% peluang dieksploitasi; lebih tinggi dari 25,4% CVE lain

Produk dan versi terdampak

NVD belum mencantumkan data produk (CPE) untuk CVE ini. Produk yang terdampak biasanya disebut di deskripsi dan di advisory vendor pada daftar referensi.

Referensi dan perbaikan

• https://github.com/nanomq/NanoNNG/commit/fa8d859bb39841e46cfc6cce280d242bd782ad3d
• https://github.com/nanomq/NanoNNG/pull/1518
• https://github.com/nanomq/nanomq/releases/tag/0.24.14
• https://github.com/nanomq/nanomq/security/advisories/GHSA-m7mp-rr3v-hmhr