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Financial Transaction Manager CVE-2026-18184

| EUVDEUVD-2026-85350 HIGH
Improper Restriction of XML External Entity Reference (CWE-611)
2026-09-23 ibm GHSA-phw2-q854-fv7m
7.4
CVSS 3.1 · Vendor: ibm
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Severity by source

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

Agree with IBM: unauthenticated adjacent XXE (AV:A/PR:N/AC:L), scope change (S:C) as entity resolution reaches other systems, confidentiality-only (C:H/I:N/A:N); AV could arguably be N.

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

Primary rating from Vendor (ibm).

CVSS VectorVendor: ibm

Attack Vector
Adjacent
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Changed
Confidentiality
High
Integrity
None
Availability
None

Lifecycle Timeline

3
Metadata Corrected
Sep 23, 2026 - 16:40 vuln.today
tag: Openshift added
Analysis Generated
Sep 23, 2026 - 16:16 vuln.today
CVE Published
Sep 23, 2026 - 15:43 cve.org
HIGH 7.4

DescriptionCVE.org

IBM Financial Transaction Manager (FTM) for RedHat OpenShift could allow a remote attacker to obtain sensitive information due to an XML external entity (XXE) injection flaw.

AnalysisAI

XML external entity (XXE) injection in IBM Financial Transaction Manager (FTM) for Red Hat OpenShift allows an unauthenticated attacker positioned on an adjacent network segment to submit crafted XML that the product's parser resolves against external entities, resulting in disclosure of server-side files or server-side request forgery against internal services. The CVSS 3.1 vector (AV:A/AC:L/PR:N/UI:N/S:C/C:H/I:N/A:N, 7.4 High) requires no credentials and no user interaction, but the adjacent-network attack vector and the confidentiality-only impact mean exploitation depends heavily on whether an XML-accepting endpoint is reachable from an untrusted same-segment network and on what sensitive files or internal services are reachable from the server context. …

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Attack ChainAIDerived

Hypothetical attack flow derived from CVE metadata

Access
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Exploit
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Execution
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Impact
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Vulnerability AssessmentAI

Exploitation Exploitation requires reaching an FTM-for-OpenShift interface that accepts and parses attacker-supplied XML with an XML parser that has external-entity resolution enabled (the CWE-611 root cause). … Additional conditions and limiting factors are described in the full assessment.
Risk Assessment This is a moderate-priority issue that should not be over-prioritized despite its 7.4 (High) score. … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in.
Exploit Scenario Full exploit scenario with step-by-step reproduction available after sign-in.
Remediation Patch availability is confirmed per the IBM vendor advisory at https://www.ibm.com/support/pages/node/7288641, which is the authoritative source for the exact fixed build; the specific fix version is not enumerated in the available input data, so administrators should retrieve the applicable version from that page and upgrade all FTM for Red Hat OpenShift instances and their XML-processing components, then redeploy the affected pods so the patched images are actually running. … Detailed patch versions, workarounds, and compensating controls in full report.

Recommended ActionAI

Within 24 hours, confirm whether any FTM for Red Hat OpenShift instance is deployed with an XML-accepting endpoint reachable from a shared or untrusted network segment, inventory the affected version against the IBM patch advisory, and restrict ingress to those endpoints with network segmentation or firewall rules so only trusted segments can reach the XML parser. …

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CVE-2026-18184 vulnerability details – vuln.today

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