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IBM MQ Operator EUVDEUVD-2026-32271

| CVE-2026-2607 MEDIUM
Insertion of Sensitive Information into Log File (CWE-532)
2026-05-27 psirt@us.ibm.com GHSA-7q7x-j3xv-rpmp
5.1
CVSS 3.1 · Vendor: us
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Attack ChainAIDerived

Hypothetical attack flow derived from CVE metadata – not a confirmed exploit chain

  1. Access
    Gain local host or container runtime access
  2. Delivery
    Identify IBM MQ log file paths or Kubernetes pod log streams
  3. Exploit
    Read log output containing sensitive IBM MQ data
  4. Execution
    Extract credentials, tokens, or configuration values
  5. Impact
    Use extracted data for lateral movement or broker authentication

Vulnerability Assessment

Weakness
CWE
OWASP Top 10:2025
A09:2025 - Security Logging & Alerting Failures
ASVS 5.0
V16 - Security Logging and Error Handling Log data sanitization
Exploitation Conditions

Local access to the host filesystem where IBM MQ log files are stored, or access to container log output via the Kubernetes/OpenShift logging API (e.g., kubectl logs on the MQ namespace), is required. The CVSS vector confirms local attack vector (AV:L), meaning remote unauthenticated exploitation against IBM MQ Operator across the network is not possible. High attack complexity (AC:H) indicates that specific conditions - likely a particular log verbosity level, operational event sequence, or log rotation state - must be present for sensitive data to appear in the logs; exploitation is not reliable against all deployments at all times. PR:N indicates no elevated privileges are required to trigger the vulnerable logging behavior itself, but practical access to read the resulting log files typically requires some level of system access (local shell on the node, or Kubernetes RBAC permission for pod logs). No user interaction is required once access conditions are satisfied. Exploitation is limited to confidentiality impact only (I:N, A:N) - an attacker cannot modify data or disrupt availability through this vulnerability alone.

Impact

The CVSS 3.1 vector AV:L/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N presents a nuanced risk picture. The local attack vector (AV:L) rules out remote exploitation, but the high confidentiality impact (C:H) indicates that what is exposed - when accessible - may be meaningfully sensitive, such as authentication credentials or encryption keys. The high attack complexity (AC:H) suggests that specific conditions must be met for the sensitive data to appear in logs, such as particular log verbosity settings or operational timing. PR:N indicates no special privileges are required to trigger the logging behavior itself, though practical access to the log files still implicitly requires some level of local system or container access. No EPSS score was provided in the available data, so exploitation probability cannot be quantified statistically. This CVE is not listed in the CISA KEV catalog, and no publicly available exploit code has been identified. Real-world priority is moderate: the vulnerability is most impactful in multi-tenant Kubernetes/OpenShift environments where non-administrative users may have pod log access via RBAC, or in shared infrastructure where log aggregation pipelines have broad read permissions. Organizations running IBM MQ for financial messaging or regulated workloads should treat this with elevated concern given the likely sensitivity of data transiting MQ.

Exploit ScenarioDerived

An attacker with local access to an OpenShift or Kubernetes node hosting IBM MQ Operator - or a developer/operator with kubectl logs access granted through permissive RBAC - reads the container log stream for a running MQ queue manager pod. The logs contain sensitive data written by IBM MQ during normal operation (such as credentials or connection configuration), which the attacker extracts and uses to authenticate to the MQ broker or connected backend systems. No exploit code is required beyond standard filesystem or Kubernetes API access.

This Month Plan within 30 days. Why: MEDIUM severity (CVSS 4.0-6.9).
No patch listed yet 0.0% exploitation probability (EPSS)

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AnalysisAIv1 – May 27, 2026

Sensitive information disclosure in IBM MQ Operator and IBM-supplied MQ Advanced container images exposes potentially sensitive data written to log files, readable by local users on the host or container system. Affected versions span three release tracks (LTS, CD, SC2) across both the MQ Operator (v2.0.0 through v3.9.1) and a broad range of container image releases from 9.3.x through 9.4.x. The CVSS score of 5.1 with a local attack vector and high complexity rating confines exploitation to users with existing local or container runtime access, and no public exploit has been identified at time of analysis.

RemediationAI

Consult IBM Security Advisory at https://www.ibm.com/support/pages/node/7273145 for the specific patched operator and container image versions - the exact fix versions are not independently confirmed from the available data and must be verified directly against the advisory before upgrading. Apply the vendor-released patch by updating the IBM MQ Operator to the remediated release for your track (LTS, CD, or SC2) and pulling updated container images from the IBM registry. As compensating controls until patching is complete: restrict filesystem permissions on IBM MQ log directories so that only the MQ service account and authorized administrators can read log files, reducing the blast radius of opportunistic access. In OpenShift/Kubernetes environments, audit and tighten RBAC policies to remove kubectl logs access for non-administrative users on MQ namespaces - note that this may limit developer troubleshooting capability and should be coordinated with operations teams. Where log aggregation pipelines (e.g., Fluentd, Elasticsearch) collect MQ container logs, ensure those pipelines apply log scrubbing or field-level masking for known sensitive patterns. Reducing MQ log verbosity to a minimum operational level is an additional mitigation but may impair incident investigation; document this trade-off before applying.

Affected VersionsENISA

supplied MQ Advanced container images SC2: 9.4.0.6 ≤r1, 9.4.0.6-r2, 9.4.0.7-r1, 9.4.0.10-r1, 9.4.0.10-r2, 9.4.0.11-r1, 9.4.0.11-r2, 9.4.0.11-r3, 9.4.0.12-r1, 9.4.0.15-r1 - 9.4.0.15-r4, 9.4.0.16-r1, 9.4.0.16-r2, 9.4.0.17-r1, 9.4.0.17-r2, 9.4.0.20-r1CD: 9.4.1.0-r1, 9.4.1.0-r2, 9.4.1.1-r1, 9.4.2.0-r1, 9.4.2.0-r2, 9.4.2.1-r1, 9.4.2.1-r2, 9.4.3.0-r1, 9.4.3.0-r2, 9.4.3.1-r1 - 9.4.3.1-r3, 9.4.4.0-r1 - 9.4.4.0-r4, 9.4.4.1-r1, 9.4.5.0-r1, 9.4.5.0-r2LTS: 9.3.0.0-r1, 9.3.0.0-r2, 9.3.0.0-r3, 9.3.0.1-r1, 9.3.0.1-r2, 9.3.0.1-r3, 9.3.0.1-r4, 9.3.0.3-r1, 9.3.0.4-r1, 9.3.0.4-r2, 9.3.0.5-r1, 9.3.0.5-r2, 9.3.0.5-r3, 9.3.0.6-r1, 9.3.0.10-r1, 9.3.0.10-r2, 9.3.0.11-r1,9.3.0.11-r2, 9.3.0.15-r1, 9.3.0.16-r1, 9.3.0.16-r2, 9.3.0.17-r1, 9.3.0.17-r2, 9.3.0.17-r3, 9.3.0.20-r1, 9.3.0.20-r2, 9.3.0.21-r1, 9.3.0.21-r2, 9.3.0.21-r3, 9.3.0.25-r1, 9.4.0.0-r1, 9.4.0.0-r2, 9.4.0.0-r3, 9.4.0.5-r1, 9.4.0.5-r2
MQ Operator SC2: v3.2.0 ≤3.2.23CD:  v3.3.0, v3.4.0, v3.4.1, v3.5.0, v3.5.1 - v3.5.3, v3.6.0 - v3.6.4, v3.7.0 - v3.7.2, v3.8.0, v3.8.1, v3.9.0, v3.9.1LTS: v2.0.0 - 2.0.29

Affected Packages

euvd mq_operator_sc2_v3_2_0_3_2_23cd_v3_3_0_v3_4_0_v3_4_1_v3_5_0_v3_5_1_v3_5_3_v3_6_0_v3_6_4_v3_7_0_v3_7_2_v3_8_0_v3_8_1_v3_9_0_v3_9_1lts_v2_0_0 no fix
euvd supplied_mq_advanced_container_images_sc2_9_4_0_6_r1_9_4_0_6_r2_9_4_0_7_r1_9_4_0_10_r1_9_4_0_10_r2_9_4_0_11_r1_9_4_0_11_r2_9_4_0_11_r3_9_4_0_12_r1_9_4_0_15_r1_9_4_0_15_r4_9_4_0_16_r1_9_4_0_16_r2_9_4_0_17_r1_9_4_0_17_r2_9_4_0_20_r1cd_9_4_1_0_r1_9_4_1_0_r2_9_4_1_1_r1_9_4_2_0_r1_9_4_2_0_r2_9_4_2_1_r1_9_4_2_1_r2_9_4_3_0_r1_9_4_3_0_r2_9_4_3_1_r1_9_4_3_1_r3_9_4_4_0_r1_9_4_4_0_r4_9_4_4_1_r1_9_4_5_0_r1_9_4_5_0_r2lts_9_3_0_0_r1_9_3_0_0_r2_9_3_0_0_r3_9_3_0_1_r1_9_3_0_1_r2_9_3_0_1_r3_9_3_0_1_r4_9_3_0_3_r1_9_3_0_4_r1_9_3_0_4_r2_9_3_0_5_r1_9_3_0_5_r2_9_3_0_5_r3_9_3_0_6_r1_9_3_0_10_r1_9_3_0_10_r2_9_3_0_11_r1_9_3_0_11_r2_9_3_0_15_r1_9_3_0_16_r1_9_3_0_16_r2_9_3_0_17_r1_9_3_0_17_r2_9_3_0_17_r3_9_3_0_20_r1_9_3_0_20_r2_9_3_0_21_r1_9_3_0_21_r2_9_3_0_21_r3_9_3_0_25_r1_9_4_0_0_r1_9_4_0_0_r2_9_4_0_0_r3_9_4_0_5_r1 no fix

Source: OSV (Open Source Vulnerabilities)

Affects your stack

Affects 2 packages in euvd

Checking this CVE against your own stacks and servers is part of the Basic plan and up.

Technical ContextAI · show details

CWE-532 (Insertion of Sensitive Information into Log File) describes the root cause: IBM MQ writes data - potentially including credentials, connection strings, tokens, or configuration parameters - to log files without adequately sanitizing or masking sensitive fields. IBM MQ Operator is a Kubernetes/OpenShift operator that manages IBM MQ queue manager deployments in containerized environments; the IBM-supplied MQ Advanced container images are the runtime containers managed by this operator. In such environments, log data may be surfaced through multiple channels: raw log files on the container filesystem, container stdout/stderr captured by the runtime, and Kubernetes log APIs (kubectl logs). Each channel has distinct access controls, and misconfigurations or overly permissive RBAC policies in OpenShift/Kubernetes clusters can widen the exposure surface beyond what a traditional on-premises log file vulnerability would imply.

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Severity by source

Vendor (us) PRIMARY 5.1 MEDIUM
AV:L/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N

Primary rating from Vendor (us) · only source for this CVE.

CVSS VectorVendor: us

Attack Vector
Local
Attack Complexity
High
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
None
Availability
None

DescriptionCVE.org

IBM MQ Operator SC2: v3.2.0 through 3.2.23CD:  v3.3.0, v3.4.0, v3.4.1, v3.5.0, v3.5.1 - v3.5.3, v3.6.0 - v3.6.4, v3.7.0 - v3.7.2, v3.8.0, v3.8.1, v3.9.0, v3.9.1LTS: v2.0.0 - 2.0.29 and IBM supplied MQ Advanced container images SC2: 9.4.0.6 through r1, 9.4.0.6-r2, 9.4.0.7-r1, 9.4.0.10-r1, 9.4.0.10-r2, 9.4.0.11-r1, 9.4.0.11-r2, 9.4.0.11-r3, 9.4.0.12-r1, 9.4.0.15-r1 - 9.4.0.15-r4, 9.4.0.16-r1, 9.4.0.16-r2, 9.4.0.17-r1, 9.4.0.17-r2, 9.4.0.20-r1CD: 9.4.1.0-r1, 9.4.1.0-r2, 9.4.1.1-r1, 9.4.2.0-r1, 9.4.2.0-r2, 9.4.2.1-r1, 9.4.2.1-r2, 9.4.3.0-r1, 9.4.3.0-r2, 9.4.3.1-r1 - 9.4.3.1-r3, 9.4.4.0-r1 - 9.4.4.0-r4, 9.4.4.1-r1, 9.4.5.0-r1, 9.4.5.0-r2LTS: 9.3.0.0-r1, 9.3.0.0-r2, 9.3.0.0-r3, 9.3.0.1-r1, 9.3.0.1-r2, 9.3.0.1-r3, 9.3.0.1-r4, 9.3.0.3-r1, 9.3.0.4-r1, 9.3.0.4-r2, 9.3.0.5-r1, 9.3.0.5-r2, 9.3.0.5-r3, 9.3.0.6-r1, 9.3.0.10-r1, 9.3.0.10-r2, 9.3.0.11-r1,9.3.0.11-r2, 9.3.0.15-r1, 9.3.0.16-r1, 9.3.0.16-r2, 9.3.0.17-r1, 9.3.0.17-r2, 9.3.0.17-r3, 9.3.0.20-r1, 9.3.0.20-r2, 9.3.0.21-r1, 9.3.0.21-r2, 9.3.0.21-r3, 9.3.0.25-r1, 9.4.0.0-r1, 9.4.0.0-r2, 9.4.0.0-r3, 9.4.0.5-r1, 9.4.0.5-r2 IBM MQ stores potentially sensitive information in log files that could be read by a local user.

Threat Intelligence Overview

EPSS Score
0.0%
Top 98% exploitable
Data Quality
4 sources
Confidence: Medium

How this decision was reached

The engine reads each signal below and applies a fixed list of rules from top to bottom. The first rule that matches sets the recommended action – like a statement, every line is shown.

SignalValue
Severity MEDIUM
CISA KEV No
Public POC No
EPSS 0.0%
Patch available No
Active threat No
Deciding rule
MEDIUM severity (CVSS 4.0-6.9)
What every action level means
Emergency Immediate action required. Criteria: CRITICAL + in CISA KEV (actively exploited) without patch, OR CRITICAL + EPSS > 30% without patch, OR CRITICAL + active threat signals without patch.
Act Now Prioritize within 24-48h. Criteria: in KEV with patch available, OR CRITICAL + public POC, OR HIGH + EPSS > 10%, OR CRITICAL + active threat, OR any CRITICAL severity.
This Week Schedule remediation this week. Criteria: HIGH severity (CVSS 7.0-8.9). Patch within normal change window.
This Month Plan within 30 days. Criteria: MEDIUM severity (CVSS 4.0-6.9), lower exploitation probability. Include in regular patch cycle.
Monitor Track and reassess. Criteria: LOW severity (CVSS 0.1-3.9), minimal exploitation risk. No immediate action needed.

SSVC AssessmentENISA

SSVC Decision· derived
Defer
Exploitation· derived
None
System Exposure· derived
Small
Automatable· derived
No
Human Impact· derived
Medium

Priority Score

26
Low Medium High Critical
KEV: 0
EPSS: 0
CVSS: +26
PoC: 0
Weaponized: 0
Threat intel: 0
Gov advisory: 0

Attack Technique

Information disclosure occurs when an application unintentionally exposes sensitive data that aids attackers in reconnaissance or directly compromises security.

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