--- id: "CVE-2026-10574" kind: "vulnerability" aliases: ["CVE-2026-10574"] title: "IBM MQ Operator: malformed message handle properties overflow heap, allowing code execution" 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": ">= 4.0.0, <= 4.0.4", "ecosystem": "vendor"}, {"name": "ibm mq operator", "fixed": [], "affected": ">= 3.3.0, <= 3.9.2", "ecosystem": "vendor"}] ecosystems: ["vendor"] tags: ["ibm-mq", "kubernetes", "openshift", "self-hosted", "vendor"] not_affected_if: ["managed-hosting", "unaffected-version"] published_at: "2026-10-19T17:17:01+00:00" first_seen_at: "2026-10-23T21:57:18+00:00" updated_at: "2026-10-24T00:21:40+00:00" sources: [{"source": "nvd", "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-10574", "first_seen_at": "2026-10-23T21:57:18+00:00"}, {"source": "analyst", "url": null, "first_seen_at": "2026-10-24T00:21:40+00:00"}] --- # IBM MQ Operator: malformed message handle properties overflow heap, allowing code execution Heap buffer overflow in IBM MQ (Operator and MQ Advanced container images) when processing MQPUT/MQPUT1 with malformed message handle properties. An authenticated network user can crash the queue manager or potentially execute code. CVSS 8.8. No known exploitation. _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 >= 4.0.0, <= 4.0.4 fixed 4.0.5, 4.1.0 - vendor:ibm mq operator affected >= 3.3.0, <= 3.9.2 fixed ? ## How to check Find the installed operator version: 'oc get csv -n | grep ibm-mq' or 'kubectl get deploy -A -o wide | grep ibm-mq-operator'. Also check queue manager image tags (ibm-mqadvanced-server, e.g. 9.4.0.26-r1 or 10.0.0.5-r1 are affected). Affected operator: 2.0.0-2.0.29, 3.2.0-3.2.29, 3.3.0-3.9.2, 4.0.0-4.0.4. ## Fix Upgrade the IBM MQ Operator to 4.1.0 (CD, with MQ Advanced 10.0.1.0-r1), 4.0.5 (SC2, with 10.0.0.5-r2) or 3.2.30 (SC2, with 9.4.0.26-r2), and roll queue managers to the new image. IBM's fix for LTS 2.0.x is not stated in what I read: unknown. ## Timeline - 2026-10-23T21:57:18+00:00 nvd https://nvd.nist.gov/vuln/detail/CVE-2026-10574 - 2026-10-24T00:21:40+00:00 analyst — CVE.org (IBM CNA) gives affected list incl. 3.7-4.0.4; fixed versions 4.1.0 / 4.0.5 / 3.2.30 come from the IBM bulletin text as quoted by sploitus (IBM page itself not found, so secondary). No fix named for LTS 2.0.x or CD 3.3-3.9. No exploitation or PoC found (sploitus entry has no code). Skipped X search. ## Documents - [advisory] CVE Record CVE-2026-10574 (IBM CNA) https://www.cve.org/CVERecord?id=CVE-2026-10574 - [fix] Sploitus: CVE-2026-10574 (quotes IBM bulletin remediation) https://sploitus.com/cve/CVE-2026-10574 - [mentions] 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 ## 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 or MQPUT1 operations with malformed message handle properties. --- _Free to read at a human pace. An API with keys and an MCP server are in preparation; early access: hello@infrastack.ai_