IBM Sterling B2B Integrator/Sterling File Gateway up to 6.2.0.5_2/6.2.1.1_2/6.2.2.0_1 Mailbox information disclosure

Summaryinfo

A vulnerability was found in IBM Sterling B2B Integrator and Sterling File Gateway up to 6.2.0.5_2/6.2.1.1_2/6.2.2.0_1. It has been declared as problematic. The impacted element is an unknown function of the component Mailbox. Such manipulation leads to information disclosure. This vulnerability is traded as CVE-2026-3157. The attack may be launched remotely. There is no exploit available.

Detailsinfo

A vulnerability was found in IBM Sterling B2B Integrator and Sterling File Gateway up to 6.2.0.5_2/6.2.1.1_2/6.2.2.0_1. It has been rated as problematic. Affected by this issue is some unknown processing of the component Mailbox. The manipulation with an unknown input leads to a information disclosure vulnerability. Using CWE to declare the problem leads to CWE-200. The product exposes sensitive information to an actor that is not explicitly authorized to have access to that information. Impacted is confidentiality. CVE summarizes:

IBM Sterling B2B Integrator 6.2.0.0 through 6.2.0.5_2, 6.2.1.0 through 6.2.1.1_2, and 6.2.2.0 through 6.2.2.0_1 and IBM Sterling File Gateway 6.2.0.0 through 6.2.0.5_2, 6.2.1.0 through 6.2.1.1_2, and 6.2.2.0 through 6.2.2.0_1 is vulnerable to an information disclosure due to sensitive information being included in the source code comments of a mailbox component.

The advisory is shared for download at ibm.com. This vulnerability is handled as CVE-2026-3157 since 02/24/2026. The exploitation is known to be easy. The attack may be launched remotely. There are neither technical details nor an exploit publicly available. The current price for an exploit might be approx. USD $5k-$25k (estimation calculated on 07/28/2026). The MITRE ATT&CK project declares the attack technique as T1592.

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

• Business Process Management Software

Vendor

• IBM

Name

• Sterling B2B Integrator
• Sterling File Gateway

Version

• 6.2.0.5_2
• 6.2.1.1_2
• 6.2.2.0_1

License

• commercial

Website

• Vendor: https://www.ibm.com/

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