What’s Vulnerable › Vulnerabilities
CVE-2026-7366: IBM DataPower Gateway affected by HTTP request header leakage in XML-Firewall
- Severity: medium (CVSS 4.2 v3.1)
- Exploited in the wild: not listed in CISA KEV
- EPSS: 0.2% probability of exploitation in the next 30 days
- Public exploit or detection template: none known
- Published: 2026-08-12 · updated 2026-10-24
- Weakness: CWE-362
Description
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 products
- IBM DataPower Gateway 11.0.0: from 10.5.0.0 before 10.5.0.22; from 10.6.0.0 before 10.6.0.10; from 11.0.0.0 before 11.0.0.2 — fixed in 10.5.0.22, 10.6.0.10, 11.0.0.2
How to fix
Upgrade to a fixed version: IBM DataPower Gateway 11.0.0 10.5.0.22, 10.6.0.10, 11.0.0.2. Check the vendor advisory for mitigations.
References
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