IBM WebSphere Application Server up to 26.0.0.8 Collective Routing Mechanism injection

Summaryinfo

A vulnerability was found in IBM WebSphere Application Server up to 26.0.0.8. It has been declared as very critical. Affected is an unknown function of the component Collective Routing Mechanism. Executing a manipulation can lead to injection. This vulnerability appears as CVE-2026-15280. The attack may be performed from remote. There is no available exploit.

Detailsinfo

A vulnerability has been found in IBM WebSphere Application Server up to 26.0.0.8 and classified as very critical. This vulnerability affects some unknown processing of the component Collective Routing Mechanism. The manipulation with an unknown input leads to a injection vulnerability. The CWE definition for the vulnerability is CWE-74. The product constructs all or part of a command, data structure, or record using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify how it is parsed or interpreted when it is sent to a downstream component. As an impact it is known to affect confidentiality, integrity, and availability. CVE summarizes:

IBM WebSphere Application Server - Liberty 17.0.0.3 through 26.0.0.8 ND Collective Controller is affected by a path-segment injection vulnerability in the collective routing mechanism.

The advisory is available at ibm.com. This vulnerability was named CVE-2026-15280 since 07/09/2026. The exploitation appears to be easy. The attack can be initiated remotely. No form of authentication is required for a successful exploitation. The technical details are unknown and an exploit is not available. The structure of the vulnerability defines a possible price range of USD $25k-$100k at the moment (estimation calculated on 07/28/2026). This vulnerability is assigned to T1055 by the MITRE ATT&CK project.

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

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Productinfo

Type

• Application Server Software

Vendor

• IBM

Name

• WebSphere Application Server

Version

• 26.0.0.0
• 26.0.0.1
• 26.0.0.2
• 26.0.0.3
• 26.0.0.4
• 26.0.0.5
• 26.0.0.6
• 26.0.0.7
• 26.0.0.8

License

• commercial

Website

• Vendor: https://www.ibm.com/

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