Skip to main content

IBM App Connect Enterprise EUVDEUVD-2026-32461

| CVE-2026-5515 MEDIUM
Insecure Storage of Sensitive Information (CWE-922)
2026-05-27 psirt@us.ibm.com GHSA-j8w4-g6qh-7pq3
5.5
CVSS 3.1 · Vendor: us
View

Attack ChainAIDerived

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

  1. Access
    Obtain local low-privileged shell access
  2. Exploit
    Navigate to ACE log file directory
  3. Execution
    Read log files from filesystem
  4. Impact
    Extract sensitive information (credentials, tokens, config data)

Vulnerability Assessment

Weakness
CWE
OWASP Top 10:2025
A01:2025 - Broken Access Control
ASVS 5.0
V14 - Data Protection Secure storage of sensitive data
Exploitation Conditions

Exploitation requires local authenticated access to the host running IBM App Connect Enterprise with at least low-privilege user permissions (PR:L per CVSS vector). The attacker must be able to read the log file path used by ACE on the filesystem. Exploitation is limited to the local system scope (S:U) and is not remotely triggerable. Non-default log verbosity or specific integration flows that cause sensitive data to be written to logs may affect whether exploitable content is actually present. No special network exposure or administrative privilege is required, but physical or remote shell access to the host is a prerequisite. There is no user interaction requirement (UI:N).

Impact

Real-world risk is moderate and bounded by the local attack vector. The CVSS score of 5.5 reflects the constraint that an attacker must already have local, low-privileged access (AV:L/PR:L/AC:L) - this is not remotely exploitable. The High confidentiality impact (C:H) is notable and suggests the log files may contain high-value secrets, but exploitation is non-automatable per CISA SSVC, meaning mass exploitation is not feasible. SSVC rates technical impact as only partial, slightly contrasting with NVD's C:H - this may reflect that only some deployments log sensitive data depending on configuration or log verbosity settings. No KEV listing, no POC, and no reported active exploitation align to a lower urgency tier. This is a real risk for insider threat scenarios or post-compromise lateral movement rather than an opportunistic internet-facing attack. EPSS data was not provided in source intelligence.

Exploit ScenarioDerived

A low-privileged local user on a host running IBM App Connect Enterprise 13.0.1.0-13.0.7.0 reads ACE log files from disk, recovering sensitive information such as credentials or configuration secrets logged during integration flow execution. No exploit code is required beyond standard file system read access. This scenario is most relevant in multi-tenant environments or systems where multiple service accounts share the same host.

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

Get an e-mail when this CVE is exploited, patched or re-scored. Free account.

Alert me

AnalysisAIv1 – May 27, 2026

Sensitive information disclosure in IBM App Connect Enterprise 13.0.1.0 through 13.0.7.0 exposes potentially sensitive data via log files accessible to local users. The CVSS vector (AV:L/PR:L) confirms exploitation requires local, low-privileged authenticated access, limiting the attack surface to users already present on the system. No public exploit has been identified and CISA SSVC rates exploitation as none, but the confidentiality impact is rated High, meaning successful access to log files could yield significant sensitive data.

RemediationAI

The primary remediation is to apply the vendor-supplied fix documented in the IBM security advisory at https://www.ibm.com/support/pages/node/7272270. An exact patched version number was not included in the available source data, so administrators should consult the advisory directly to confirm the target upgrade version. As a compensating control prior to patching, restrict read permissions on ACE log directories to only the service account running ACE and authorized administrators - this directly addresses the local user read path exploited by this vulnerability. Additionally, review and reduce log verbosity settings to avoid writing sensitive fields (credentials, tokens) to logs where feasible, noting that reducing verbosity may impact troubleshooting capability. Rotate any credentials or tokens that may have been captured in existing log files on affected systems.

Affected VersionsENISA

App Connect Enterprise 13.0.1.0 ≤13.0.7.0

Affected Packages

euvd app_connect_enterprise no fix

Source: OSV (Open Source Vulnerabilities)

Affects your stack

Affects 1 package in euvd

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

Technical ContextAI · show details

IBM App Connect Enterprise (ACE) is an enterprise integration platform used to connect applications and data across hybrid cloud environments. The vulnerability stems from the platform writing potentially sensitive information - such as credentials, tokens, or internal configuration data - into application log files without adequate sanitization or access restriction. The CWE classification was not assigned by NVD, but the behavior is consistent with CWE-532 (Insertion of Sensitive Information into Log File). The affected version range is 13.0.1.0 through 13.0.7.0 per EUVD-2026-32461. No CPE strings were provided in the source data.

Know when App Connect Enterprise gets its next vulnerability

  • Watch products and get an email when something new is published
  • Check this CVE against your own stack and servers
  • Exploit and PoC references, threat intelligence from 22 sources

No credit card · 7-day full trial

Severity by source

Vendor (us) PRIMARY 5.5 MEDIUM
AV:L/AC:L/PR:L/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
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
None
Availability
None

DescriptionCVE.org

IBM App Connect Enterprise 13.0.1.0 through 13.0.7.0 stores potentially sensitive information in log files that could be read by a local user.

Threat Intelligence Overview

EPSS Score
0.0%
Top 99% exploitable
Data Quality
5 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
None
System Exposure· derived
Small
Automatable
No
Human Impact· derived
Medium
Technical Impact
Partial

Priority Score

28
Low Medium High Critical
KEV: 0
EPSS: 0
CVSS: +28
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.

CVE-2026-15435 CRITICAL
9.8 Jul 30

Directory traversal in IBM App Connect Enterprise 13.0.1.0-13.0.7.2 and 12.0.1.0-12.0.12.27 lets a remote unauthenticate

CVE-2026-14522 CRITICAL
9.8 Jul 30

Command injection in IBM App Connect Enterprise (versions 12.0.1.0-12.0.12.27 and 13.0.1.0-13.0.7.2) lets a remote attac

CVE-2024-22317 CRITICAL
9.1 Jan 18

IBM App Connect Enterprise 11.0.0.1 through 11.0.0.24 and 12.0.1.0 through 12.0.11.0 could allow a remote attacker to ob

CVE-2026-75624 HIGH
8.8 Sep 10

Incorrect authorization in IBM App Connect Enterprise (ACE) versions 12.x and 13.x allows a remote authenticated attacke

CVE-2026-17133 HIGH
7.8 Sep 14

Local arbitrary code execution affects IBM App Connect Enterprise releases 13.0.1.0 through 13.0.8.0 and 12.0.1.0 throug

CVE-2026-17156 HIGH
7.8 Sep 14

Insecure deserialization in IBM App Connect Enterprise releases 13.0.1.0 through 13.0.8.0 and 12.0.1.0 through 12.0.12.2

CVE-2026-17416 HIGH
7.8 Sep 14

Insecure deserialization in IBM App Connect Enterprise (12.0.1.0 through 12.0.12.27 and 13.0.1.0 through 13.0.8.0) allow

CVE-2026-81832 HIGH
7.7 Sep 04

XML external entity injection in the SAP Adapter component of IBM App Connect Enterprise and IBM Integration Bus for z/O

CVE-2026-14519 HIGH
7.5 Jul 30

Arbitrary file read in IBM App Connect Enterprise (versions 13.0.1.0 through 13.0.7.2 and 12.0.1.0 through 12.0.12.27) a

CVE-2026-12947 HIGH
7.5 Jul 30

Local information disclosure in IBM App Connect Enterprise (versions 13.0.1.0-13.0.7.2 and 12.0.1.0-12.0.12.27) occurs b

CVE-2026-78543 HIGH
7.5 Sep 04

Remote denial-of-service in IBM App Connect Enterprise and IBM Integration Bus for z/OS allows unauthenticated network a

CVE-2026-17443 MEDIUM
6.5 Sep 04

XML external entity injection in IBM App Connect Enterprise (versions 12.0.1.0-12.0.12.28 and 13.0.1.0-13.0.8.1) and IBM

This site uses cookies essential for authentication and security. No tracking or analytics cookies are used. Privacy Policy