CVE-2026-7366: IBM DataPower Gateway affected by HTTP request header leakage in XML-Firewall

Published Aug 6, 2026
·
Updated

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.

Other sources

IBM DataPower Gateway 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.

— IBM

Affected Software

9 affected components
IBM DataPower Gateway>=11.0.0.0<=11.0.0.1
IBM DataPower Gateway>=10.5.0.0<=10.5.0.21
IBM DataPower Gateway>=10.6.0.0<=10.6.0.9
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
IBM DataPower Gateway>=10.5.0.0<10.5.0.22
IBM DataPower Gateway>=10.6.0.0<10.6.0.10
IBM DataPower Gateway>=11.0.0.0<11.0.0.2

Remediation

Recommended actions to resolve this vulnerability, in priority order.

  1. Upgrade

    Upgrade IBM DataPower Gateway 11.0.0 to a version that resolves this vulnerability.

    Fixed in 11.0.0.2Patch DT469107
  2. Upgrade

    Upgrade IBM DataPower Gateway 10.5.0 to a version that resolves this vulnerability.

    Fixed in 10.5.0.22Patch DT469107
  3. Upgrade

    Upgrade IBM DataPower Gateway 10.6.0 to a version that resolves this vulnerability.

    Fixed in 10.6.0.10Patch DT469107

Event History

Aug 6, 2026
CVE Published
via IBM·12:00 AM
Data Sourced
via IBM·12:00 AM
DescriptionAffected Software
Aug 12, 2026
CVE Published
via MITRE·09:19 PM
Data Sourced
via MITRE·09:19 PM
RemedyDescriptionSeverityWeakness
Data Sourced
via NVD·10:17 PM
DescriptionSeverityWeaknessAffected Software

Parent advisories

This vulnerability appears in the following advisories.

Frequently Asked Questions

1

What is the severity of CVE-2026-7366?

The severity of CVE-2026-7366 is medium, with a score of 4.2.

2

How do I fix CVE-2026-7366?

To mitigate CVE-2026-7366, update your IBM DataPower Gateway to a version that addresses the race condition vulnerability.

3

What type of vulnerability is CVE-2026-7366?

CVE-2026-7366 is classified as a race condition vulnerability affecting request state isolation.

4

Which versions of IBM DataPower Gateway are affected by CVE-2026-7366?

CVE-2026-7366 affects IBM DataPower Gateway versions 11.0.0.0 through 11.0.0.1, 10.5.0.0 through 10.5.0.21, and 10.6.0.0 through 10.6.0.9.

5

What impact does CVE-2026-7366 have on users?

CVE-2026-7366 can lead to improper isolation of request states, potentially resulting in information leakage.

Company

Resources

Contact

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