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5.9

IBM DataPower Gateway may stop working from remote request

CVE-2026-14509 · published 27 days ago
Summary

Versions of IBM DataPower Gateway from 10.5.0 up to 11.0.0 can be forced to stop responding when an attacker sends specially crafted data. This happens because the software spends excessive time processing certain internal lists. Apply the latest patches from IBM or upgrade to a protected version to keep the gateway running smoothly.

What to do

The CVE record does not list a fixed version. Check the vendor's site or the advisory links below - a fix may already be released.

Affected software
VendorProductAffected versions
ibm datapower gateway 10.6cd <= 10.6.6
ibm datapower gateway 10.6.0 <= 10.6.0.10
ibm datapower gateway 11.0.0 <= 11.0.0.2
ibm datapower gateway 10.5.0 <= 10.5.0.22
Original advisory text
IBM DataPower Gateway Denial of Service
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.
References
Fix within
Internet-facing 14 days
Internal 60 days
  • Not known to be exploited
  • Can be exploited automatically (estimated)
  • Gives an attacker partial control (estimated)
Severity
5.9 Medium
Exploitation
<1% chance of attack within 30 days
Type
CWE-400Uncontrolled Resource Consumption
Timeline
Published8 Oct 2026
Updated4 Nov 2026
First seen8 Oct 2026
Sources
CVE-2026-14509 · NVD
CVE-2026-14509 · MITRE
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