CVE-2026-7366

Summary

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.

Affected Software

VendorProductVersion RangeStatus
IBMDataPower Gateway 11.0.011.0.0.0 <= 11.0.0.1affected
IBMDataPower Gateway 10.5.010.5.0.0 <= 10.5.0.21affected
IBMDataPower Gateway 10.6.010.6.0.0 <= 10.6.0.9affected

Weaknesses

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

Workarounds

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

References