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IBM Concert EUVDEUVD-2026-84875

| CVE-2026-15915 MEDIUM
Files or Directories Accessible to External Parties (CWE-552)
2026-09-22 ibm GHSA-w2q4-jgf9-7p93
6.2
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
    Obtain access to built container image
  2. Exploit
    Inspect image layers/filesystem
  3. Execution
    Locate over-copied build context files
  4. Impact
    Extract embedded sensitive information

Vulnerability Assessment

Weakness
CWE
OWASP Top 10:2025
A01:2025 - Broken Access Control
ASVS 5.0
V5 - File Handling File access restriction
MITRE ATT&CK

2 techniques across 1 tactic: Collection

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

Exploitation Conditions

Requires that IBM Concert's container build process recursively copies build context directories into images (the vulnerable default behavior in versions 1.0.0 through 3.0.0), causing sensitive files present in the build context to be embedded in the resulting image. Exploitation then requires local access to that image - for example the ability to pull it from a registry, read image layers, or access a running/stored container. Limiting factors: the attack vector is local (AV:L), not network-reachable, so the attacker must already be able to obtain the built image; impact is confined to disclosure of whatever sensitive files happened to reside in the build context (C:H, no integrity or availability impact). No authentication against the application itself is needed (PR:N), and no user interaction is required.

Impact

This is a genuine but low-urgency issue. The vendor CVSS of 6.2 (AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N) is driven almost entirely by the C:H confidentiality impact; the AV:L attack vector caps real-world reach because exploitation requires local access to the produced container image, not a network-facing endpoint. There is no EPSS score, no CISA KEV listing, and no public exploit code identified at time of analysis, so this is 'no public exploit identified at time of analysis' - not active exploitation. No SSVC decision data is provided. The description's phrase 'local attacker' is consistent with the AV:L vector, so signals are internally coherent (no CVSS-vs-description conflict). Note the PR:N/local combination is unusual: it reflects that anyone able to read/pull the built image obtains the baked-in secrets without needing credentials on the app itself. Bottom line: a real weakness (secrets leaking into container images) but a moderate, not urgent, priority given local vector, no exploitation signals, and an available vendor patch.

Exploit ScenarioDerived

A build pipeline for IBM Concert recursively copies the entire build context directory into the container image, embedding sensitive files (e.g., credentials, keys, config) that were not meant to ship. A local attacker - or anyone with access to the image registry or a running container - inspects the image layers and extracts those secrets. No public PoC exists; the attack is trivial (image layer inspection) once the image is obtainable.

This Month Plan within 30 days. Why: MEDIUM severity (CVSS 4.0-6.9).
Patch available 0.2% exploitation probability (EPSS)

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AnalysisAIv1 – Sep 22, 2026

Build-context directories belonging to IBM Concert 1.0.0 through 3.0.0 are recursively copied into produced container images, so any sensitive files sitting in that context (credentials, config files, keys, environment files) are baked into the image layers and disclosed to anyone who can pull the image or read its filesystem. The issue is local in nature (CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N, base 6.2): an attacker must already be able to obtain or access the built image, and no authentication or user interaction is involved, but the confidentiality impact on whatever was left in the build context is high, with no integrity or availability effect. There is no confirmed active exploitation (no CISA KEV listing) and no public exploit identified at time of analysis, so this is a genuine but low-urgency information-disclosure hygiene defect that matters most where images are pushed to shared or externally reachable registries.

RemediationAI

Vendor-released patch: consult IBM's advisory at https://www.ibm.com/support/pages/node/7288830, which documents the fix for the recursive build-context copying behavior in IBM Concert 1.0.0 through 3.0.0; upgrade to the corrected release identified there, as no exact fix version is specified in the available data. Because the vulnerable artifacts are already-built images, patching the tool alone is not sufficient - every image produced by an affected Concert version should be treated as potentially containing leaked build-context files, rebuilt after upgrading, and purged from registries, with any credentials or keys that may have been embedded rotated immediately. As compensating controls pending or alongside the upgrade, add a .dockerignore (or the equivalent exclusion manifest) that removes .env, .git, *.pem, *kubeconfig*, /secrets/ and similar paths from the build context before it is packaged, and restructure builds so secrets are injected at runtime via mounted secret stores or build secrets rather than copied as files; the trade-off is that overly broad ignore rules can break builds that legitimately depend on excluded files, so rules must be tested. Where images are already published, tightening registry access controls and disabling anonymous pulls reduces who can reach the layers, at the cost of breaking downstream consumers that rely on open access. Finally, run layer-level secret scanning on existing image inventories to determine what was actually exposed, since that finding drives whether credential rotation is required.

Affected VersionsENISA

Concert 1.0.0 ≤3.0.0

Affected Packages

euvd concert 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

The root cause maps to CWE-552 (Files or Directories Accessible to External Parties): the container build pipeline recursively pulls the entire build context - not just the explicitly referenced artifacts - into the image being assembled. In a normal Docker-style workflow the context directory is the working tree handed to the builder, and anything in it is transferred and, when copied by a broad COPY/ADD step or an equivalent internal staging routine, persisted into the resulting layers. Files that developers reasonably expect to stay local (.env, cloud credential files, SSH keys, kubeconfigs, database connection strings, internal certificates) therefore become part of the shipped artifact and remain recoverable from image layers and registry blobs even if later deleted in a subsequent layer. The CPE entry cpe:2.3:a:ibm:concert:*:*:*:*:*:*:*:* covers the affected IBM Concert releases from 1.0.0 through 3.0.0; the vendor rate this as an information-disclosure and build-context/path handling defect specific to that version span. Note that AV:L in the assessed vector reflects the requirement to already possess or reach the built image rather than any network-facing attack surface in Concert itself.

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Severity by source

Vendor (ibm) PRIMARY 6.2 MEDIUM
AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
vuln.today AI 6.2 MEDIUM

AV:L because it requires local access to the built image; PR:N/UI:N since inspecting the image needs no app credentials or interaction; C:H confidentiality-only, no integrity or availability impact.

3.1 AV:L/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
4.0 AV:L/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
Local
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
None
Availability
None

DescriptionCVE.org

IBM Concert 1.0.0 through 3.0.0 could allow a local attacker to obtain sensitive information due to recursive copying of build context directories into container images.

Threat Intelligence Overview

EPSS Score
0.2%
Top 94% exploitable
Prevalence
Low
IBM Concert is a niche enterprise AIOps/application-management platform
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 0.2%
Patch available Yes
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

31
Low Medium High Critical
KEV: 0
EPSS: 0
CVSS: +31
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.

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

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