Is CVE-2026-3158 exploited in the wild?

No. Junglewise Threat Intelligence has no report of CVE-2026-3158 being exploited in the wild.

How severe is CVE-2026-3158?

Medium severity, with a CVSS score of 4.3, published 28 July 2026.

Which products and versions are affected?

IBM Sterling File Gateway 6.2.0.0 - 6.2.0.5_2, 6.2.1.0 - 6.2.1.1_2, 6.2.2.0 - 6.2.2.0_1; IBM Sterling B2b Integrator 6.2.0.0 - 6.2.0.5_2, 6.2.1.0 - 6.2.1.1_2, 6.2.2.0 - 6.2.2.0_1.

Is there a fix for CVE-2026-3158?

A patch was published on 2026-07-21: Fixes available in versions 6.2.0.6, 6.2.1.2, and 6.2.2.1 Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.

How is CVE-2026-3158 attacked?

It is attacked over the network, in a network appliance.

Am I affected by CVE-2026-3158?

Check whether you run IBM Sterling File Gateway or IBM Sterling B2b Integrator at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

CVE-2026-3158: IBM Sterling B2B Integrator information disclosure in dashboard component

CVE-2026-3158 · Severity: medium · CVSS 4.3 · Published 2026-07-28

IBM Sterling B2B Integrator and Sterling File Gateway, which are used by organizations to manage secure file transfers and business-to-business transactions, are affected by a security flaw. Sensitive information was inadvertently included in the source code comments of a dashboard component. An authenticated user could view this information, potentially gaining insights into the system's internal configuration or security posture.

Technologies: IBM Sterling File Gateway, IBM Sterling B2b Integrator. Vendors: IBM.

Quick answers

Is CVE-2026-3158 exploited in the wild?: No. Junglewise Threat Intelligence has no report of CVE-2026-3158 being exploited in the wild.
How severe is CVE-2026-3158?: Medium severity, with a CVSS score of 4.3, published 28 July 2026.
Which products and versions are affected?: IBM Sterling File Gateway 6.2.0.0 - 6.2.0.5_2, 6.2.1.0 - 6.2.1.1_2, 6.2.2.0 - 6.2.2.0_1; IBM Sterling B2b Integrator 6.2.0.0 - 6.2.0.5_2, 6.2.1.0 - 6.2.1.1_2, 6.2.2.0 - 6.2.2.0_1.
Is there a fix for CVE-2026-3158?: A patch was published on 2026-07-21: Fixes available in versions 6.2.0.6, 6.2.1.2, and 6.2.2.1 Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.
How is CVE-2026-3158 attacked?: It is attacked over the network, in a network appliance.
Am I affected by CVE-2026-3158?: Check whether you run IBM Sterling File Gateway or IBM Sterling B2b Integrator at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

Technical details

This vulnerability is classified as an information disclosure (CWE-615) within the dashboard component of IBM Sterling B2B Integrator and Sterling File Gateway. The root cause is the inclusion of sensitive data within source code comments that are accessible to users. An attacker with low-privileged network access can view these comments to extract sensitive information. The vulnerability affects versions 6.2.0.0 through 6.2.2.0_1. IBM has released patches in versions 6.2.0.6, 6.2.1.2, and 6.2.2.1 to remediate this issue.

Affected products

IBM Sterling B2B Integrator 6.2.0.0 - 6.2.0.5_2, 6.2.1.0 - 6.2.1.1_2, 6.2.2.0 - 6.2.2.0_1
IBM Sterling File Gateway 6.2.0.0 - 6.2.0.5_2, 6.2.1.0 - 6.2.1.1_2, 6.2.2.0 - 6.2.2.0_1

Timeline

2026-07-21: advisory: Initial publication by IBM
2026-07-28: disclosed: NVD publication date
2026-07-21: patched: Fixes available in versions 6.2.0.6, 6.2.1.2, and 6.2.2.1

References

https://www.ibm.com/support/pages/node/7280661

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