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Vulnerability · Published Aug 12, 2026 · Assigned by ibm

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

Medium 4.2

In plain English

A medium-severity race condition in DataPower Gateway 10.5.0 from IBM. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.2% (higher than 6% of all known vulnerabilities).

Severity (CVSS 3.1)4.2Medium
Exploit odds (30 days)0.2%top 94.4% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known

Official 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 (as reported)

VendorProductVersions
IBM DataPower Gateway 11.0.0 11.0.0.0 – through 11.0.0.1
IBM DataPower Gateway 10.5.0 10.5.0.0 – through 10.5.0.21
IBM DataPower Gateway 10.6.0 10.6.0.0 – through 10.6.0.9

Weakness: CWE-362 · Vector: CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:N

References