CVE-2026-15819

Summary

A remote attacker can cause a denial of service by triggering an out-of-bounds memory access in IBM DataPower Gateway due to a strict-weak-ordering violation in sorting logic. This vulnerability allows an attacker to crash the gateway service, potentially disrupting network traffic and application connectivity.

Exploitability

Exploitation appears moderately difficult as it requires crafting specific input data that triggers the sorting comparator with strict-weak-ordering violation, but no public exploit references are available and the vulnerability is in a backend sorting operation rather than a direct input parsing routine.

Blast radius

If exploited, this vulnerability could cause significant disruption to network services that rely on DataPower Gateway for traffic management, potentially leading to complete service outages for applications depending on the gateway's functionality.

Detection

No reliable host or network indicator is derivable from the published description.

Prioritized remediation

Upgrade to IBM DataPower Gateway 10.5.0.23, 10.6.7, 10.6.0.11, or 11.0.0.3 to remediate this vulnerability.

Analysis generated locally by garnet-coder (no data left the box). AI-assisted — verify against primary sources before acting.