Intel

CVE-2026-15435

app_connect_enterprise: Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal') (CVE-2026-15435)

criticalEPSS 0.7%

Affected

  • ibm/app_connect_enterprise between 12.0.1.0..12.0.12.28
  • ibm/app_connect_enterprise between 13.0.1.0..13.0.8.0

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.

Source: NVD (NIST)cvelistv5BSI WID PortalBSI CSAF

Affected products

The following versions are affected. Older releases of the same product line are also vulnerable unless stated otherwise.

ibmapp_connect_enterprise
12.0.1.0 – 12.0.12.2813.0.1.0 – 13.0.8.0

Metrics

XIEM Effective CVSS
9.8
Source: nvd-v3
EPSS percentile
53.0 %
High — this CVE ranks above the median of all CVEs scored today (rank ≥ 36%).
KEV status
—
Show all metrics
Severity
critical
Priority score
95.14
Exploit maturity
no public PoC known
CVSS v3
9.8
EPSS score
0.7 %
Low — model estimates < 1% exploitation likelihood.
Published
2026-07-30 14:08 UTC
CWE
CWE-22

Weakness classes (CWE)

  • CWE-22Base

    Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')

    The product uses external input to construct a pathname that is intended to identify a file or directory that is located underneath a restricted parent directory, but the product does not properly neutralize special elements within the pathname that can cause the pathname to resolve to a location that is outside of the restricted directory.

    cwe.mitre.org →

References & sources

Reanalysis & status changes

Chronological NVD audit events for this CVE — reanalyses, CVSS updates, CPE diffs.

  1. Initial Analysis2026-08-05 14:32 UTC· nvd@nist.gov
    • CPE Configuration: OR *cpe:2.3:a:ibm:app_connect_enterprise:*:*:*:*:*:*:*:* versions from (including) 13.0.1.0 up to (excluding) 13.0.8.0 *cpe:2.3:a:ibm:app_connect_enterprise:*:*:*:*:*:*:*:* versions from (including) 12.0.1.0 up to (excluding) 12.0.12.28
    • Reference Type: IBM Corporation: https://www.ibm.com/support/pages/node/7281896 Types: Vendor Advisory
  2. CVE Modified2026-07-31 16:16 UTC· 134c704f-9b21-4f2e-91b3-4a467353bcc0
    • SSVC: {"id":"CVE-2026-15435","role":"CISA Coordinator","options":[{"exploitation":"none"},{"automatable":"yes"},{"technical… → {"id":"CVE-2026-15435","role":"CISA Coordinator","options":[{"exploitation":"none"},{"automatable":"yes"},{"technical…
  3. New CVE Received2026-07-30 15:16 UTC· psirt@us.ibm.com
    • Affected: App Connect Enterprise
    • 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 V3.1: AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
    • CWE: CWE-22

Linked advisories