Impact
IBM MQ implements deserialization of untrusted data through its asynchronous consume request handling. A crafted request can trigger a crash of the queue manager agent process, causing a denial of service to the affected queue manager. The vulnerability is characterized by CWE‑502, indicating an insecure deserialization weakness that allows malformed input to disrupt application workflow. Attacks can be launched by an authenticated user who has permission to submit asynchronous consume requests.
Affected Systems
The affected products are IBM MQ Advanced container images and the IBM MQ Operator. The vulnerability is present in the following releases: IBM MQ Container images 10.0.1.0‑r1 and 10.0.0.5‑r2, and IBM MQ Operator releases v4.1.0 CD (targeting 10.0.1.0‑r1), v4.0.5 SC2 (targeting 10.0.0.5‑r2), and v3.2.30 SC2 (targeting 9.4.0.26‑r2). Systems running any of these images or operator releases could be impacted.
Risk and Exploitability
The vulnerability scores a CVSS of 6.5, indicating moderate severity. EPSS data is not available, and the CVE is not listed in the CISA KEV catalogue, so there is no current evidence of widespread exploitation. The attack vector requires an authenticated user to send a specifically crafted asynchronous consume request; thus the risk is limited to users with MQ access privileges. However, because the denial of service can affect the availability of critical messaging services, the risk to an organization with high MQ usage remains significant. Prompt mitigation via patching is recommended to prevent potential downtime.
OpenCVE Enrichment