CVE-2026-59986

critical

Description

The rabbitmq-c project reports: CVE-2026-61547: A heap buffer overflow exists when the amqp_send_frame() API is used to serialise an oversized AMQP_FRAME_BODY frame, as memcpy() writes past the end of the heap allocation without validating that the body fragment fits within the allocated frame buffer. CVE-2026-59986: An integer overflow in the amqp_decode_bytes bounds check on 32-bit systems allows a malicious AMQP broker to craft frames with oversized BYTES fields, resulting in an out-of-bounds read that may expose process memory or crash the application.

Details

Source: Mitre, NVD

Published: 2026-10-06

Risk Information

CVSS v2

Base Score: 7.5

Vector: CVSS2#AV:N/AC:L/Au:N/C:P/I:P/A:P

Severity: High

CVSS v3

Base Score: 9.8

Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Severity: Critical