What is CVE-2026-17443?

CVE-2026-17443 is a medium-severity vulnerability, classified under Improper Restriction of XML External Entity Reference (XXE). CVSS score: 5.3/10. Published 2026-09-04.

How severe is CVE-2026-17443?

Medium severity. CVSS v3 base score is 5.3 out of 10.

CVE-2026-17443

CVE-2026-17443

IBM App Connect Enterprise 13.0.1.0 through 13.0.8.1, and 12.0.1.0 through 12.0.12.28 and IBM Integration Bus for z/OS 10.1.0.0 through 10.1.0.7 could allow a remote authenticated attacker to obtain sensitive information due to an XML external entity (XXE) injection flaw.

Vulnerability class: XXE (XML External Entity)

CVSS v3 metric

CVSS v3 base score 5.3 (Medium). Vector: CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N.

Weakness classification (CWE)

CWE-611 — Improper Restriction of XML External Entity Reference (XXE)

References

psirt@us.ibm.com

Frequently asked questions

What is CVE-2026-17443?: CVE-2026-17443 is a medium-severity vulnerability, classified under Improper Restriction of XML External Entity Reference (XXE). CVSS score: 5.3/10. Published 2026-09-04.
How severe is CVE-2026-17443?: Medium severity. CVSS v3 base score is 5.3 out of 10.