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

MITRE NVD CVE.ORG JSON API

Summary

CVECVE-2026-7366
StatePUBLISHED
Assigneribm
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-08-12 22:17:17 UTC
Updated2026-08-17 18:20:21 UTC
DescriptionIBM 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.

Risk And Classification

Primary CVSS: v3.1 4.2 MEDIUM from [email protected]

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

EPSS: 0.001600000 probability, percentile 0.056910000 (date 2026-08-16)

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

VersionSourceTypeScoreSeverityVector
3.1[email protected]Secondary4.2MEDIUMCVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:N
3.1CNACVSS4.2MEDIUMCVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:N

CVSS v3.1 Breakdown

Attack Vector
Network
Attack Complexity
High
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
Low
Integrity
Low
Availability
None

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

NVD Known Affected Configurations (CPE 2.3)

TypeVendorProductVersionUpdateEditionLanguage
Application Ibm Datapower Gateway All All All All

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA IBM DataPower Gateway 11.0.0 affected 11.0.0.0 11.0.0.1 semver Not specified
CNA IBM DataPower Gateway 10.5.0 affected 10.5.0.0 10.5.0.21 semver Not specified
CNA IBM DataPower Gateway 10.6.0 affected 10.6.0.0 10.6.0.9 semver Not specified

References

ReferenceSourceLinkTags
www.ibm.com/support/pages/node/7282770 [email protected] www.ibm.com Vendor Advisory
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

Additional Advisory Data

Solutions

CNA: 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

Workarounds

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

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