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IBM MQ EUVDEUVD-2026-104466

| CVE-2026-12660 LOW
Path Traversal (CWE-22)
2026-10-19 ibm GHSA-h65q-98c2-q928
2.7
CVSS 3.1 · Vendor: ibm
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Attack ChainAIDerived

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

  1. Access
    Authenticate to MQ Web Console as admin
  2. Exploit
    Submit request with traversal path
  3. Execution
    Bypass path validation
  4. Impact
    Write file outside intended directory

Vulnerability Assessment

Weakness
CWE
OWASP Top 10:2025
A01:2025 - Broken Access Control
ASVS 5.0
V5 - File Handling Path canonicalization, traversal prevention
MITRE ATT&CK

2 techniques across 2 tactics: Discovery, Collection

The technique list with ATT&CK links and the kill-chain view is part of the Basic plan and up.

Exploitation Conditions

Exploitation requires an authenticated session as an administrator of the IBM MQ Web Console (CVSS PR:H), and the attacker must be able to supply a path parameter that the console processes for a file-write operation. The limiting factors are significant: the administrator privilege requirement means only already-trusted or already-compromised privileged accounts can trigger the flaw, UI:N means no victim interaction is needed, and impact is confined to integrity (writing files outside the intended directory) with no confidentiality or availability effect. Applicable specifically to IBM MQ deployments using the MQ Operator or MQ Advanced Container Images where the Web Console is exposed and used for administration.

Impact

This is a low-severity, low-priority issue despite being network-reachable. The CVSS 3.1 base score of 2.7 is driven almost entirely by the high privilege requirement (PR:H) and the limited impact (I:L only; no confidentiality or availability impact, no scope change). The attacker must already be an authenticated administrator of the IBM MQ Web Console, which means the actor already holds substantial legitimate control over the product - the path-traversal write primarily lets a privileged user step outside the intended directory rather than escalate from an unprivileged position. No EPSS score, KEV listing, POC, or SSVC decision data was provided in the input; there is no public exploit identified at time of analysis and no evidence of active exploitation. The AV:N designation is consistent with the web console being a network-facing management interface, and it aligns with the description. The dominant real-world risk signal here is the PR:H gate: exploitation presupposes a trusted administrator, so this is best treated as a defense-in-depth hardening fix rather than an urgent externally-driven threat. No signals conflict; the limiting factor is simply that the vulnerability is only reachable by an already-privileged user.

Exploit ScenarioDerived

An authenticated administrator (or an attacker who has already compromised administrator credentials) of the IBM MQ Web Console submits a request containing a crafted path with traversal sequences, causing a file to be written outside the intended directory on the host or container filesystem. No public proof-of-concept exploit was identified in the provided intelligence. Because exploitation requires existing administrator access over the network (AV:N/PR:H), the practical scenario is a malicious or compromised privileged operator rather than an anonymous remote attacker.

Monitor Track and reassess. Why: LOW severity (CVSS 0.1-3.9).
Patch available 0.2% exploitation probability (EPSS)

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AnalysisAIv1 – Oct 19, 2026

Path traversal in IBM MQ Web Console allows an authenticated administrator to write files outside the intended directory in deployments using IBM MQ Operator or IBM MQ Advanced Container Images. The issue is low severity (CVSS 2.7) with integrity-only impact and a high privilege prerequisite, and no public exploit identified at time of analysis; a vendor patch is available per IBM advisory.

RemediationAI

Patch available per vendor advisory: consult IBM support node 7292667 to identify and deploy the fixed IBM MQ Operator and IBM MQ Advanced Container Images releases, then redeploy affected containers. Because the provided data does not include an exact fix version, do not assume a version number beyond what IBM publishes in that advisory. Until patched, restrict IBM MQ Web Console access to trusted administrative networks, enforce strong authentication and least privilege for console administrators, and monitor for unexpected file writes or path traversal attempts; these measures reduce exposure but do not correct the underlying path validation flaw. Given the PR:H prerequisite, also prioritize detection and rotation of potentially compromised administrator credentials.

Affected VersionsENISA

MQ Advanced container images 9.3.0.0-r2
MQ Operator 3.9.1
MQ Advanced container images 9.4.0.20-r1
MQ Advanced container images 9.4.5.1-r1
MQ Advanced container images 9.4.0.7-r1
MQ Operator 3.8.1
MQ Advanced container images 9.3.0.15-r1
MQ Advanced container images 9.3.0.5-r1
MQ Advanced container images 9.3.0.17-r1
MQ Advanced container images 10.0.0.0-r1 ≤10.0.0.0-r4
MQ Advanced container images 9.4.0.11-r2
MQ Advanced container images 9.4.0.15-r1 ≤9.4.0.15-r4
MQ Advanced container images 9.4.0.26-r1
MQ Advanced container images 9.3.0.4-r1
MQ Operator 4.0.4
MQ Advanced container images 9.3.0.10-r1
MQ Advanced container images 9.3.0.11-r2
MQ Advanced container images 9.4.5.0-r2
MQ Advanced container images 9.3.0.5-r3
MQ Advanced container images 9.4.4.1-r1
MQ Advanced container images 9.3.0.17-r2
MQ Advanced container images 9.4.0.25-r1 ≤9.4.0.25-r3
MQ Advanced container images 9.3.0.25-r1
MQ Advanced container images 9.3.0.4-r2
MQ Operator 4.0.2
MQ Advanced container images 9.4.0.21-r2
MQ Advanced container images 9.3.0.1-r1
MQ Operator 4.0.0
MQ Advanced container images 9.4.0.5-r1
MQ Advanced container images 9.3.0.5-r2
MQ Advanced container images 9.4.0.6-r2
MQ Advanced container images 9.4.3.0-r1
MQ Advanced container images 9.4.2.1-r2
MQ Advanced container images 9.4.0.16-r2
MQ Advanced container images 9.4.0.16-r1
MQ Advanced container images 9.3.0.20-r1
MQ Advanced container images 9.3.0.21-r1
MQ Advanced container images 9.4.1.0-r2
MQ Advanced container images 9.4.0.0-r3
MQ Operator 4.0.1
MQ Advanced container images 9.4.1.1-r1
MQ Advanced container images 9.3.0.21-r2
MQ Advanced container images 9.3.0.1-r2
MQ Advanced container images 9.3.0.0-r3
MQ Operator 3.4.1
MQ Advanced container images 9.3.0.20-r2
MQ Advanced container images 9.3.0.3-r1
MQ Advanced container images 9.4.5.0-r1
MQ Advanced container images 9.3.0.11-r1
MQ Operator 3.9.2
MQ Advanced container images 9.3.0.6-r1
MQ Operator 4.0.3
MQ Operator 3.5.0
MQ Advanced container images 9.3.0.16-r2
MQ Advanced container images 9.4.0.0-r2
MQ Advanced container images 9.4.0.17-r2
MQ Advanced container images 9.4.4.0-r1
MQ Advanced container images 9.4.3.1-r1 ≤9.4.3.1-r3
MQ Advanced container images 9.4.0.17-r1
MQ Advanced container images 9.4.2.0-r2
MQ Operator 3.6.0 ≤3.6.4
MQ Advanced container images 9.3.0.10-r2
MQ Operator 3.2.0 ≤3.2.29
MQ Advanced container images 9.3.0.1-r4
MQ Advanced container images 9.4.0.6-r1 ≤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-r1, 9.4.0.21-r1, 9.4.0.21-r2, 9.4.0.25-r1 - 9.4.0.25-r3, 9.4.0.26-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-r2, 9.4.5.1-r1, 10.0.0.0-r1 - 10.0.0.0-r4, 10.0.0.5-r1LTS: 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 Advanced container images 9.3.0.21-r3
MQ Advanced container images 9.4.0.0-r1
MQ Advanced container images 9.4.3.0-r2
MQ Operator 3.7.0 ≤3.7.2
MQ Operator 3.9.0
MQ Advanced container images 9.4.0.10-r1
MQ Advanced container images 9.3.0.1-r3
MQ Advanced container images 9.3.0.17-r3
MQ Operator 3.5.1 ≤3.5.3
MQ Advanced container images 9.4.0.10-r2
MQ Advanced container images 9.3.0.16-r1
MQ Operator 3.3.0 <3.4.0
MQ Advanced container images 9.4.2.0-r1
MQ Advanced container images 10.0.0.5-r1
MQ Advanced container images 9.4.2.1-r1
MQ Advanced container images 9.4.0.21-r1
MQ Advanced container images 9.4.1.0-r1
MQ Advanced container images 9.4.0.11-r1
MQ Operator 2.0.0 ≤2.0.29
MQ Advanced container images 9.3.0.0-r1
MQ Advanced container images 9.4.0.12-r1
MQ Advanced container images 9.4.0.11-r3
MQ Operator 3.8.0
MQ Advanced container images 9.4.0.5-r2

Affected Packages

euvd mq_advanced_container_images no fix
euvd mq_operator fix: 3.4.0

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

The flaw is classified as CWE-22 path traversal, arising from improper validation of path input processed by the IBM MQ Web Console for a file-write operation. An attacker who already holds administrator-level access to the console can supply a crafted path that escapes the intended directory and causes files to be written elsewhere on the underlying filesystem. The CVSS vector CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:L/A:N indicates network reachability, low attack complexity, a high privilege requirement, no user interaction, unchanged scope, and impact limited to integrity; there is no confidentiality or availability effect. The provided CPE entries identify IBM MQ Operator and IBM MQ Advanced Container Images as the affected products, with wildcard versions meaning the data does not constrain affected releases further. Exploitation requires an authenticated Web Console administrator able to control the path parameter used in the file-write flow, so the practical risk is concentrated in environments where administrative console access is exposed or privileged accounts are compromised.

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Severity by source

Vendor (ibm) PRIMARY 2.7 LOW
AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:L/A:N
vuln.today AI 2.7 LOW

Network-facing web console (AV:N) but exploitation needs administrator authentication (PR:H); only a limited out-of-directory file write, so I:L and C:N/A:N.

3.1 AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:L/A:N
4.0 AV:N/AC:L/AT:N/PR:H/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N

Primary rating from Vendor (ibm).

CVSS VectorVendor: ibm

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

DescriptionCVE.org

IBM MQ Web Console could allow an authenticated administrator to write files outside the intended directory due to improper path validation.

Threat Intelligence Overview

EPSS Score
0.2%
Top 86% exploitable
Prevalence
Medium
IBM MQ containerized operator/image deployments; common enterprise middleware but a subset
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 LOW
CISA KEV No
Public POC No
EPSS 0.2%
Patch available Yes
Active threat No
Deciding rule
LOW severity (CVSS 0.1-3.9)
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
None
System Exposure· derived
Open
Automatable
No
Human Impact· derived
Low
Technical Impact
Partial

Priority Score

14
Low Medium High Critical
KEV: 0
EPSS: 0
CVSS: +14
PoC: 0
Weaponized: 0
Threat intel: 0
Gov advisory: 0

Attack Technique

Path traversal exploits occur when applications use user-controlled input to construct file system paths without proper validation.

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