CVE-2026-3157: Security Vulnerability in IBM Sterling B2B Integrator and IBM Sterling File Gateway due to information disclosure in mailbox UI

Published Jul 21, 2026
·
Updated

IBM Sterling B2B Integrator 6.2.0.0 through 6.2.0.52, 6.2.1.0 through 6.2.1.12, and 6.2.2.0 through 6.2.2.01 and IBM Sterling File Gateway 6.2.0.0 through 6.2.0.52, 6.2.1.0 through 6.2.1.12, and 6.2.2.0 through 6.2.2.01 is vulnerable to an information disclosure due to sensitive information being included in the source code comments of a mailbox component.

Other sources

IBM Sterling B2B Integrator and IBM Sterling File Gateway is vulnerable to an information disclosure due to sensitive information being included in the source code comments of a mailbox component.

— IBM

Affected Software

9 affected components
IBM Sterling B2B Integrator and IBM Sterling File Gateway<=6.2.0.0 - 6.2.0.5_2
IBM Sterling B2B Integrator and IBM Sterling File Gateway<=6.2.1.0 - 6.2.1.1_2
IBM Sterling B2B Integrator and IBM Sterling File Gateway<=6.2.2.0 - 6.2.2.0_1
IBM Sterling B2B Integrator>=6.2.0.0<=6.2.0.5_2
IBM Sterling B2B Integrator>=6.2.1.0<=6.2.1.1_2
IBM Sterling B2B Integrator>=6.2.2.0<=6.2.2.0_1
IBM Sterling File Gateway>=6.2.0.0<=6.2.0.5_2
IBM Sterling File Gateway>=6.2.1.0<=6.2.1.1_2
IBM Sterling File Gateway>=6.2.2.0<=6.2.2.0_1

Remediation

Recommended actions to resolve this vulnerability, in priority order.

  1. Upgrade

    Upgrade IBM Sterling B2B Integrator to a version that resolves this vulnerability.

    Fixed in 6.2.0.6Patch IT48984
  2. Upgrade

    Upgrade IBM Sterling File Gateway to a version that resolves this vulnerability.

    Fixed in 6.2.0.6Patch IT48984
  3. Upgrade

    Upgrade IBM Sterling B2B Integrator to a version that resolves this vulnerability.

    Fixed in 6.2.1.2Patch IT48984
  4. Upgrade

    Upgrade IBM Sterling File Gateway to a version that resolves this vulnerability.

    Fixed in 6.2.1.2Patch IT48984
  5. Upgrade

    Upgrade IBM Sterling B2B Integrator to a version that resolves this vulnerability.

    Fixed in 6.2.2.1Patch IT48984
  6. Upgrade

    Upgrade IBM Sterling File Gateway to a version that resolves this vulnerability.

    Fixed in 6.2.2.1Patch IT48984

Event History

Jul 21, 2026
CVE Published
via IBM·12:00 AM
Data Sourced
via IBM·12:00 AM
DescriptionAffected Software
Jul 28, 2026
CVE Published
via MITRE·07:40 PM
Data Sourced
via MITRE·07:40 PM
RemedyDescriptionSeverityWeakness
Data Sourced
via NVD·08:17 PM
DescriptionSeverityWeaknessAffected Software

Parent advisories

This vulnerability appears in the following advisories.

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Frequently Asked Questions

1

What is the severity of CVE-2026-3157?

The severity of CVE-2026-3157 is medium with a CVSS score of 4.3.

2

How do I fix CVE-2026-3157?

To fix CVE-2026-3157, apply the latest security patches from IBM for the affected versions of IBM Sterling B2B Integrator and IBM Sterling File Gateway.

3

What type of vulnerability is CVE-2026-3157?

CVE-2026-3157 is an information disclosure vulnerability affecting IBM Sterling B2B Integrator and IBM Sterling File Gateway.

4

Which versions are affected by CVE-2026-3157?

CVE-2026-3157 affects IBM Sterling B2B Integrator versions 6.2.0.0 to 6.2.2.0_1 and IBM Sterling File Gateway versions 6.2.0.0 to 6.2.2.0_1.

5

What are the possible impacts of CVE-2026-3157?

The possible impacts of CVE-2026-3157 include the unauthorized disclosure of sensitive information via the mailbox UI.

Company

Resources

Contact

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