CVE-2026-7366 PUBLISHED

IBM DataPower Gateway affected by HTTP request header leakage in XML-Firewall

Assigner: ibm
Reserved: 28.04.2026 Published: 12.08.2026 Updated: 13.08.2026

IBM DataPower Gateway 11.0.0.0 through 11.0.0.1 and IBM DataPower Gateway 10.5.0.0 through 10.5.0.21 and IBM DataPower Gateway 10.6.0.0 through 10.6.0.9 allows a race condition that results in improper isolation of request state when handling the built‑in X‑Client‑IP header. Under concurrent request processing, X‑Client‑IP values may be contaminated across requests, enabling IP spoofing and disclosure of other clients’ IP addresses.

Metrics

CVSS Vector: CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:N
CVSS Score: 4.2

Product Status

Vendor IBM
Product DataPower Gateway 11.0.0
Versions
  • affected from 11.0.0.0 to 11.0.0.1 (incl.)
Vendor IBM
Product DataPower Gateway 10.5.0
Versions
  • affected from 10.5.0.0 to 10.5.0.21 (incl.)
Vendor IBM
Product DataPower Gateway 10.6.0
Versions
  • affected from 10.6.0.0 to 10.6.0.9 (incl.)

Workarounds

Disable persistent connections to an XML Firewall service or don't set the X-Client-IP header on the client request.

Solutions

IBM strongly advises upgrading as soon as possible. APAR: DT469107 Affected VersionsFixed in ReleaseIBM DataPower Gateway 11.0.0 11.0.0.0 - 11.0.0.111.0.0.2IBM DataPower Gateway 10.5.0 10.5.0.0 - 10.5.0.2110.5.0.22IBM DataPower Gateway 10.6.0 10.6.0.0 - 10.6.0.910.6.0.10

References

Problem Types

  • CWE-362 Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition') CWE