Out-of-Bounds Memory Access Flaw in IBM DataPower Gateway
CVE-2026-15819

7.5HIGH

Key Information:

Vendor

IBM
Status
Datapower Gateway 10.6cd
Datapower Gateway 10.6.0
Datapower Gateway 11.0.0
Datapower Gateway 10.5.0
Vendor
CVE Published:
8 October 2026

What is CVE-2026-15819?

IBM DataPower Gateway versions 10.5.0.0 to 10.5.0.22, 10.6.1 to 10.6.6, 10.6.0.0 to 10.6.0.10, and 11.0.0.0 to 11.0.0.2 suffer from an out-of-bounds memory access vulnerability. This may allow a remote attacker to trigger a denial of service through a strict-weak-ordering violation in the sorting comparator, leading to system instability and service interruptions.

Affected Version(s)

DataPower Gateway 10.5.0 10.5.0.0 <= 10.5.0.22

DataPower Gateway 10.6.0 10.6.0.0 <= 10.6.0.10

DataPower Gateway 10.6CD 10.6.1 <= 10.6.6

References

https://www.ibm.com/support/pages/node/7289775
vendor-advisorypatch

CVSS V3.1

Score:
7.5
Severity:
HIGH
Confidentiality:
None
Integrity:
None
Availability:
None
Attack Vector:
Network
Attack Complexity:
Low
Privileges Required:
None
User Interaction:
None
Scope:
Unchanged

Timeline

  • Vulnerability published

  • Vulnerability Reserved

.