--- id: "CVE-2026-10572" kind: "vulnerability" aliases: ["CVE-2026-10572"] title: "IBM MQ Operator: heap overflow on malformed MQPUT lets authenticated users run code" severity: "high" cvss: 8.8 epss: null exploited: false status: "open" category: "vendor" products: [{"name": "ibm mq operator", "fixed": [], "affected": ">= 2.0.0, <= 2.0.29", "ecosystem": "vendor"}, {"name": "ibm mq operator", "fixed": [], "affected": ">= 3.2.0, <= 3.2.29", "ecosystem": "vendor"}, {"name": "ibm mq operator", "fixed": [], "affected": "= 3.3.0", "ecosystem": "vendor"}, {"name": "ibm mq operator", "fixed": [], "affected": "= 3.4.0", "ecosystem": "vendor"}, {"name": "ibm mq operator", "fixed": [], "affected": "= 3.4.1", "ecosystem": "vendor"}, {"name": "ibm mq operator", "fixed": [], "affected": "= 3.5.0", "ecosystem": "vendor"}, {"name": "ibm mq operator", "fixed": [], "affected": "= 3.5.1", "ecosystem": "vendor"}, {"name": "ibm mq operator", "fixed": [], "affected": "= 3.5.2", "ecosystem": "vendor"}, {"name": "ibm mq operator", "fixed": [], "affected": "= 3.5.3", "ecosystem": "vendor"}, {"name": "ibm mq operator", "fixed": [], "affected": "= 3.6.0", "ecosystem": "vendor"}, {"name": "ibm mq operator", "fixed": [], "affected": "= 3.6.1", "ecosystem": "vendor"}, {"name": "ibm mq operator", "fixed": [], "affected": "= 3.6.2", "ecosystem": "vendor"}, {"name": "ibm mq operator", "fixed": [], "affected": "= 3.6.3", "ecosystem": "vendor"}, {"name": "ibm mq operator", "fixed": [], "affected": "= 3.6.4", "ecosystem": "vendor"}, {"name": "ibm mq operator", "fixed": [], "affected": "= 3.7.0", "ecosystem": "vendor"}, {"name": "ibm mq operator", "fixed": [], "affected": "= 3.7.1", "ecosystem": "vendor"}, {"name": "ibm mq operator", "fixed": [], "affected": "= 3.7.2", "ecosystem": "vendor"}, {"name": "ibm mq operator", "fixed": [], "affected": "= 3.8.0", "ecosystem": "vendor"}, {"name": "ibm mq operator", "fixed": [], "affected": "= 3.8.1", "ecosystem": "vendor"}, {"name": "ibm mq operator", "fixed": [], "affected": "= 3.9.0", "ecosystem": "vendor"}, {"name": "ibm mq operator", "fixed": [], "affected": "= 3.9.1", "ecosystem": "vendor"}, {"name": "ibm mq operator", "fixed": [], "affected": "= 3.9.2", "ecosystem": "vendor"}, {"name": "ibm mq operator", "fixed": [], "affected": "= 4.0.0", "ecosystem": "vendor"}, {"name": "ibm mq operator", "fixed": [], "affected": "= 4.0.1", "ecosystem": "vendor"}, {"name": "ibm mq operator", "fixed": [], "affected": "= 4.0.2", "ecosystem": "vendor"}, {"name": "ibm mq operator", "fixed": [], "affected": "= 4.0.3", "ecosystem": "vendor"}, {"name": "ibm mq operator", "fixed": [], "affected": "= 4.0.4", "ecosystem": "vendor"}, {"name": "ibm supplied mq advanced container images", "fixed": [], "affected": "= 9.4.1.0", "ecosystem": "vendor"}, {"name": "ibm supplied mq advanced container images", "fixed": [], "affected": "= 9.4.1.1", "ecosystem": "vendor"}, {"name": "ibm supplied mq advanced container images", "fixed": [], "affected": "= 9.4.2.0", "ecosystem": "vendor"}, {"name": "ibm supplied mq advanced container images", "fixed": [], "affected": "= 9.4.2.1", "ecosystem": "vendor"}, {"name": "ibm supplied mq advanced container images", "fixed": [], "affected": "= 9.4.3.0", "ecosystem": "vendor"}, {"name": "ibm supplied mq advanced container images", "fixed": [], "affected": "= 9.4.3.1", "ecosystem": "vendor"}, {"name": "ibm supplied mq advanced container images", "fixed": [], "affected": "= 9.4.4.0", "ecosystem": "vendor"}, {"name": "ibm supplied mq advanced container images", "fixed": [], "affected": "= 9.4.4.1", "ecosystem": "vendor"}, {"name": "ibm supplied mq advanced container images", "fixed": [], "affected": "= 9.4.5.0", "ecosystem": "vendor"}, {"name": "ibm supplied mq advanced container images", "fixed": [], "affected": "= 9.4.5.1", "ecosystem": "vendor"}, {"name": "ibm supplied mq advanced container images", "fixed": [], "affected": "= 10.0.0.0", "ecosystem": "vendor"}, {"name": "ibm supplied mq advanced container images", "fixed": [], "affected": "= 10.0.0.5", "ecosystem": "vendor"}, {"name": "ibm supplied mq advanced container images", "fixed": [], "affected": "= 9.3.0.0", "ecosystem": "vendor"}, {"name": "ibm mq operator", "fixed": ["4.0.5", "4.1.0"], "affected": ">= 3.3.0, <= 4.0.4", "ecosystem": "vendor"}, {"name": "ibm mq advanced container images", "fixed": ["10.0.1.0-r1", "10.0.0.5-r2", "9.4.0.26-r2"], "affected": "<= 10.0.0.5-r1 and 9.4.0.x through 9.4.0.26-r1", "ecosystem": "vendor"}] ecosystems: ["vendor"] tags: ["container", "ibm-mq", "kubernetes", "openshift", "vendor"] not_affected_if: ["auth-required", "version-outside-affected-ranges"] published_at: "2026-10-19T17:17:01+00:00" first_seen_at: "2026-10-23T21:57:18+00:00" updated_at: "2026-10-24T00:21:48+00:00" sources: [{"source": "nvd", "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-10572", "first_seen_at": "2026-10-23T21:57:18+00:00"}, {"source": "analyst", "url": null, "first_seen_at": "2026-10-24T00:21:48+00:00"}] --- # IBM MQ Operator: heap overflow on malformed MQPUT lets authenticated users run code Heap buffer overflow in IBM MQ (queue manager) when processing MQPUT with malformed message options. An authenticated, network-reachable attacker with low privileges can cause DoS or potentially run code. CVSS 8.8 (IBM). Affects the MQ Operator and the IBM-supplied MQ Advanced container images. IBM lists no workarounds. _Summary, check and fix written by a model from the sources; labelled as such._ ## Affected - vendor:ibm mq operator affected >= 2.0.0, <= 2.0.29 fixed ? - vendor:ibm mq operator affected >= 3.2.0, <= 3.2.29 fixed ? - vendor:ibm mq operator affected = 3.3.0 fixed ? - vendor:ibm mq operator affected = 3.4.0 fixed ? - vendor:ibm mq operator affected = 3.4.1 fixed ? - vendor:ibm mq operator affected = 3.5.0 fixed ? - vendor:ibm mq operator affected = 3.5.1 fixed ? - vendor:ibm mq operator affected = 3.5.2 fixed ? - vendor:ibm mq operator affected = 3.5.3 fixed ? - vendor:ibm mq operator affected = 3.6.0 fixed ? - vendor:ibm mq operator affected = 3.6.1 fixed ? - vendor:ibm mq operator affected = 3.6.2 fixed ? - vendor:ibm mq operator affected = 3.6.3 fixed ? - vendor:ibm mq operator affected = 3.6.4 fixed ? - vendor:ibm mq operator affected = 3.7.0 fixed ? - vendor:ibm mq operator affected = 3.7.1 fixed ? - vendor:ibm mq operator affected = 3.7.2 fixed ? - vendor:ibm mq operator affected = 3.8.0 fixed ? - vendor:ibm mq operator affected = 3.8.1 fixed ? - vendor:ibm mq operator affected = 3.9.0 fixed ? - vendor:ibm mq operator affected = 3.9.1 fixed ? - vendor:ibm mq operator affected = 3.9.2 fixed ? - vendor:ibm mq operator affected = 4.0.0 fixed ? - vendor:ibm mq operator affected = 4.0.1 fixed ? - vendor:ibm mq operator affected = 4.0.2 fixed ? - vendor:ibm mq operator affected = 4.0.3 fixed ? - vendor:ibm mq operator affected = 4.0.4 fixed ? - vendor:ibm supplied mq advanced container images affected = 9.4.1.0 fixed ? - vendor:ibm supplied mq advanced container images affected = 9.4.1.1 fixed ? - vendor:ibm supplied mq advanced container images affected = 9.4.2.0 fixed ? - vendor:ibm supplied mq advanced container images affected = 9.4.2.1 fixed ? - vendor:ibm supplied mq advanced container images affected = 9.4.3.0 fixed ? - vendor:ibm supplied mq advanced container images affected = 9.4.3.1 fixed ? - vendor:ibm supplied mq advanced container images affected = 9.4.4.0 fixed ? - vendor:ibm supplied mq advanced container images affected = 9.4.4.1 fixed ? - vendor:ibm supplied mq advanced container images affected = 9.4.5.0 fixed ? - vendor:ibm supplied mq advanced container images affected = 9.4.5.1 fixed ? - vendor:ibm supplied mq advanced container images affected = 10.0.0.0 fixed ? - vendor:ibm supplied mq advanced container images affected = 10.0.0.5 fixed ? - vendor:ibm supplied mq advanced container images affected = 9.3.0.0 fixed ? - vendor:ibm mq operator affected >= 3.3.0, <= 4.0.4 fixed 4.0.5, 4.1.0 - vendor:ibm mq advanced container images affected <= 10.0.0.5-r1 and 9.4.0.x through 9.4.0.26-r1 fixed 10.0.1.0-r1, 10.0.0.5-r2, 9.4.0.26-r2 ## How to check Get the operator version: oc get csv -n | grep ibm-mq (or kubectl get deployment -n and read the ibm-mq-operator image tag). Then check the queue manager image tag (oc get queuemanager -o jsonpath='{.status.versions}' or the pod image). Affected: operator 2.0.0-2.0.29, 3.2.0-3.2.29, 3.3.0, 3.4.0-3.4.1, 3.5.0-3.5.3, 3.6.0-3.6.4, 3.7.0-3.7.2, 3.8.0-3.8.1, 3.9.0-3.9.2, 4.0.0-4.0.4, plus MQ Advanced images older than the fixed ones. ## Fix Upgrade operator and queue manager image together: 4.1.0 with MQ Advanced 10.0.1.0-r1 (CD); 4.0.5 with 10.0.0.5-r2 (SC2); 3.2.30 with 9.4.0.26-r2 (SC2). Standalone container images 10.0.1.0-r1 or 10.0.0.5-r2. LTS (operator 2.0.x, MQ 9.3 LTS): bulletin lists no fix, ask IBM. Until patched, restrict who can connect to channels and put messages. ## Timeline - 2026-10-23T21:57:18+00:00 nvd https://nvd.nist.gov/vuln/detail/CVE-2026-10572 - 2026-10-24T00:21:48+00:00 analyst — Read IBM bulletin (2026-10-15): fixed in Operator 4.1.0 (CD), 4.0.5 (SC2), 3.2.30 (SC2); no fix listed for LTS 2.0.x; no workarounds. Affected range wider than triage (through 4.0.4). No exploitation or PoC found; social not searched (low-profile CVE). Does not list fixed images for LTS: confirm with IBM. ## Documents - [advisory] IBM Security Bulletin: Multiple vulnerabilities in IBM MQ Operator and Queue manager container images (2026-10-15) https://www.ibm.com/support/pages/security-bulletin-multiple-vulnerabilities-ibm-mq-operator-and-queue-manager-container-images-31 - [describes] CVE Record: CVE-2026-10572 (CNA: IBM) https://www.cve.org/CVERecord?id=CVE-2026-10572 ## From the sources IBM MQ could allow an authenticated attacker to cause a denial of service or potentially execute arbitrary code due to a heap buffer overflow when processing MQPUT operations with malformed message options. --- _Free to read at a human pace. An API with keys and an MCP server are in preparation; early access: hello@infrastack.ai_