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CVE-2026-15435

IBM App Connect Enterprise path traversal

9.8 CRITICALEPSS 0.73%
  1. Published30 Jul 2026

Description

IBM App Connect Enterprise 13.0.1.0 through 13.0.7.2, and 12.0.1.0 through 12.0.12.27 could allow a remote attacker to traverse directories on the system. An attacker could send a specially crafted URL request containing "dot dot" sequences (/../) to write arbitrary files on the system.

CVSS 3.1 breakdown

Attack vectorNetwork
Attack complexityLow
Privileges requiredNone
User interactionNone
ScopeUnchanged
ConfidentialityHigh
IntegrityHigh
AvailabilityHigh
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Affected products

IBM App Connect Enterprise≥ 12.0.1.0 < 12.0.12.28 · ≥ 13.0.1.0 < 13.0.8.0

Remediation

Fixed in
IBM App Connect Enterprise≥ 12.0.12.28

References

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Frequently asked

Is CVE-2026-15435 being actively exploited?

CVE-2026-15435 is not in the CISA KEV catalog. Its EPSS exploit probability is 0.73%.

How severe is CVE-2026-15435?

CVE-2026-15435 has a CVSS 3.1 base score of 9.8, rated critical. EPSS estimates a 0.73% probability of exploitation.

Which products are affected by CVE-2026-15435?

Affected products include IBM App Connect Enterprise.

How do I fix CVE-2026-15435?

Upgrade affected software to a fixed version, for example IBM App Connect Enterprise 12.0.12.28 or later, then confirm no affected versions remain in your inventory.

How Secuno handles this

Secuno correlates vulnerabilities like CVE-2026-15435 against the real software inventory on every managed device, as each hourly inventory arrives. Rather than a static severity, each match is scored in context: exploit availability, EPSS, the asset's exposure, and business criticality decide where it lands in the queue. If an affected version is present anywhere across your portfolio, it surfaces automatically with a prioritised remediation path.

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Data from the NVD, CISA KEV catalog and FIRST EPSS. CVSS 3.1 base score shown where available.