IBM DataPower Gateway up to 11.0.0.1/10.5.0.21/10.6.0.9 X-Client-IP race condition

Summaryinfo

A vulnerability was found in IBM DataPower Gateway up to 11.0.0.1/10.5.0.21/10.6.0.9. It has been declared as very critical. Affected by this vulnerability is an unknown functionality. Executing a manipulation of the argument X-Client-IP can lead to race condition. This vulnerability is registered as CVE-2026-7366. It is possible to launch the attack remotely. No exploit is available.

Detailsinfo

A vulnerability has been found in IBM DataPower Gateway up to 11.0.0.1/10.5.0.21/10.6.0.9 and classified as very critical. This vulnerability affects some unknown processing. The manipulation of the argument X-Client-IP with an unknown input leads to a race condition vulnerability. The CWE definition for the vulnerability is CWE-362. The product contains a code sequence that can run concurrently with other code, and the code sequence requires temporary, exclusive access to a shared resource, but a timing window exists in which the shared resource can be modified by another code sequence that is operating concurrently. As an impact it is known to affect confidentiality, integrity, and availability. CVE summarizes:

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.

The advisory is available at ibm.com. This vulnerability was named CVE-2026-7366 since 04/28/2026. The exploitation appears to be easy. The attack can be initiated remotely. Technical details are known, but there is no available exploit. The structure of the vulnerability defines a possible price range of USD $5k-$25k at the moment (estimation calculated on 08/12/2026).

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

If you want to get best quality of vulnerability data, you may have to visit VulDB.

Productinfo

Vendor

• IBM

Name

• DataPower Gateway

Version

• 10.5.0.0
• 10.5.0.1
• 10.5.0.2
• 10.5.0.3
• 10.5.0.4
• 10.5.0.5
• 10.5.0.6
• 10.5.0.7
• 10.5.0.8
• 10.5.0.9
• 10.5.0.10
• 10.5.0.11
• 10.5.0.12
• 10.5.0.13
• 10.5.0.14
• 10.5.0.15
• 10.5.0.16
• 10.5.0.17
• 10.5.0.18
• 10.5.0.19
• 10.5.0.20
• 10.5.0.21
• 10.6.0.0
• 10.6.0.1
• 10.6.0.2
• 10.6.0.3
• 10.6.0.4
• 10.6.0.5
• 10.6.0.6
• 10.6.0.7
• 10.6.0.8
• 10.6.0.9
• 11.0.0.0
• 11.0.0.1

License

• commercial

Website

• Vendor: https://www.ibm.com/

CPE 2.3info

• 🔒
• 🔒
• 🔒

CPE 2.2info

• 🔒
• 🔒
• 🔒

CVSSv4info

CVSSv3info

CVSSv2info

Exploitinginfo

Threat Intelligenceinfo

Countermeasuresinfo

Timelineinfo

Sourcesinfo

Entryinfo

If you want to get best quality of vulnerability data, you may have to visit VulDB.

Discussion