CVE-2026-7366
IBM DataPower Gateway affected by HTTP request header leakage in XML-Firewall
CVSS Score
4.2
EPSS Score
0.0%
EPSS Percentile
0th
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.
| CWE | CWE-362 |
| Vendor | ibm |
| Product | datapower gateway 11.0.0 |
| Published | Aug 12, 2026 |
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CVSS v3 Breakdown
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:N Attack Vector
Network
Attack Complexity
High
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
Low
Integrity
Low
Availability
None
Affected Versions
IBM / DataPower Gateway 11.0.0
11.0.0.0 ≤ 11.0.0.1
IBM / DataPower Gateway 10.5.0
10.5.0.0 ≤ 10.5.0.21
IBM / DataPower Gateway 10.6.0
10.6.0.0 ≤ 10.6.0.9