Medium severity · published Aug 12, 2026
CVE-2026-7366
IBM DataPower Gateway affected by HTTP request header leakage in XML-Firewall
4.2
CVSS
0.2%
EPSS
No
On KEV
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.
CVSS vector
CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:N
Attack vector
Network
Complexity
High
Privileges
Low
User interaction
None
Confidentiality
Low
Integrity
Low
Availability
None
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)0.2% · higher than 6% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
DG
DataPower Gateway 10.5.0 · IBM
10.5.0.0 through 10.5.0.21 · source: vendor
DG
DataPower Gateway 10.6.0 · IBM
10.6.0.0 through 10.6.0.9 · source: vendor
DG
DataPower Gateway 11.0.0 · IBM
11.0.0.0 through 11.0.0.1 · source: vendor
DG
Datapower Gateway · Ibm
10.5.0.0 before 10.5.0.22; 10.6.0.0 before 10.6.0.10; 11.0.0.0 before 11.0.0.2 · source: NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-7366
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-7366
vendor-advisory
https://www.ibm.com/support/pages/node/7282770
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