Vulnerability · Published Oct 8, 2026 · Assigned by ibm

CVE-2026-14509IBM DataPower Gateway Denial of Service

Medium 5.9

In plain English

A medium-severity uncontrolled resource consumption in DataPower Gateway 10.5.0 from IBM. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.3% (higher than 18% of all known vulnerabilities).

Severity (CVSS 3.1)5.9Medium
Exploit odds (30 days)0.3%top 81.5% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known

Official description

IBM DataPower Gateway 10.5.0.0 through 10.5.0.22, 10.6.1 through 10.6.6, 10.6.0.0 through 10.6.0.10, and 11.0.0.0 through 11.0.0.2 could allow a remote attacker to cause a denial of service due to algorithmic complexity in linked-list traversal.

Affected products (as reported)

VendorProductVersions
IBM DataPower Gateway 10.6CD 10.6.1 – through 10.6.6
IBM DataPower Gateway 10.6.0 10.6.0.0 – through 10.6.0.10
IBM DataPower Gateway 11.0.0 11.0.0.0 – through 11.0.0.2
IBM DataPower Gateway 10.5.0 10.5.0.0 – through 10.5.0.22

Weakness: CWE-400 · Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H

References